Waste gas treatment device and system for waste refrigerator disassembling line

Abstract

The utility model relates to a waste gas treatment device and system for a waste refrigerator disassembly line, and the waste gas treatment device comprises a plurality of collecting units, a conveying unit, a dust removal unit, an adsorption unit, a catalysis unit and a spraying unit, and has the advantages that the collecting units and the conveying unit are used for collecting and conveying waste gas in time; the dust removal unit is used for removing dust and filtering the waste gas; the adsorption unit is used for adsorbing odor and non-methane hydrocarbon in the waste gas in a multi-stage manner, so that the removal rate of the waste gas reaches 98%, the removal efficiency is high, and the problem of low waste gas treatment efficiency is solved; the catalytic unit is used for carrying out thermocatalytic reaction on the waste gas to generate harmless products of carbon dioxide and water, so that the removal rate of the waste gas reaches 99%, the energy is saved, and the problem that new harmful gas is generated by waste gas treatment is solved; and then the spraying unit circularly sprays the product until the product meets the discharge requirement, and then the product is discharged, so that the environment and the health of workers are effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of waste refrigerator recycling, in particular to an exhaust gas treatment device and system for a waste refrigerator disassembly line. Background Art

[0002] During the production process, the disassembly, crushing, and sorting processes of the refrigerator disassembly line generate varying amounts of dust, odor, and non-methane hydrocarbons (VOCs). The treatment of cyclopentane and the concentration detection and protective measures for hydrocarbon gases play a vital role in the safe production of equipment. The collection and effective treatment of exhaust gas not only ensures the production safety of the workshop and the health of the operators, but also avoids pollution to the environment and provides a good and healthy working environment.

[0003] The insulation layer of refrigerators uses foam with R11 or cyclopentane as the blowing agent. Therefore, the exhaust gas primarily contains cyclopentane and hydrocarbons. Cyclopentane is highly volatile, flammable, and insoluble in water. If not effectively monitored and treated, it can not only pollute the environment but also pose a safety hazard to the workplace.

[0004] To effectively treat these waste gases, existing waste refrigerator shredding systems typically employ multi-stage waste gas treatment devices. A closed collection system collects the waste gases through a suction hood and induced draft fan, then utilizes carbon adsorption after dust removal. The UV photocatalytic degradation system further utilizes ultraviolet light photolysis and catalysis. However, UV photocatalytic decomposition is not only slow, but also generates new harmful gases, such as ozone and bromocyclopentane, in the decomposition products. Cyclopentane decomposes under ultraviolet light and reacts with bromine to form bromocyclopentane (C5H9Br). Bromocyclopentane is soluble in ethanol and ether but insoluble in water. It can damage the liver and has an anesthetic effect. Inhalation, ingestion, or skin absorption can be harmful to the body and irritate the eyes and skin. Furthermore, new harmful products are difficult to remove, creating new pollution and health risks. Furthermore, the concentration of the collected waste gases is not monitored in real time and treated promptly, posing a safety hazard.

[0005] Catalytic combustion technology uses a catalyst as an intermediate to convert organic gases into harmless water and carbon dioxide at a relatively low temperature, achieving an organic gas removal efficiency exceeding 99%. Furthermore, catalytic combustion technology features automatic control, automatically adjusting its operating state based on the exhaust gas flow rate and concentration, eliminating the need for excessive human intervention and significantly simplifying the operation process. Furthermore, the catalyst has a long lifespan, typically exceeding four years, making it an environmentally friendly and effective conversion process that does not cause secondary pollution.

[0006] In response to the problems in related technologies such as low waste gas treatment efficiency, generation of new harmful gases during waste gas treatment, and lack of monitoring and safety treatment devices for waste gas at the collection port, no effective solutions have been proposed. Utility Model Content

[0007] The purpose of the utility model is to address the deficiencies in the existing technology and provide a waste gas treatment device and system for a waste refrigerator dismantling line, so as to solve the problems existing in the related technology such as low waste gas treatment efficiency, generation of new harmful gases during waste gas treatment, and lack of waste gas monitoring and safety treatment devices at the collection port.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] The first aspect of the present invention is to provide an exhaust gas treatment device for a waste refrigerator dismantling line, comprising:

[0010] A plurality of collection units, each of which is respectively provided in the crushing process, the conveying process, and the sorting process of the waste refrigerators, and is used to absorb waste gas generated during the dismantling process of the waste refrigerators;

[0011] a conveying unit, each of which is connected to the plurality of collecting units and is used to convey the exhaust gas;

[0012] a dust removal unit, the dust removal unit being in communication with the conveying unit and being used for performing dust removal treatment on the exhaust gas to remove dust and particulate matter in the exhaust gas;

[0013] an adsorption unit, the adsorption unit being connected to the dust removal unit and being used for performing multi-stage adsorption treatment on the exhaust gas after the dust removal treatment to remove odor, organic gas and harmful gas in the exhaust gas;

[0014] a catalytic unit, the catalytic unit being in communication with the adsorption unit and being used for thermally catalyzing the exhaust gas after the multi-stage adsorption treatment to generate harmless products;

[0015] A spray unit is connected to the catalytic unit and is used for spraying the harmless products obtained through the thermal catalytic treatment.

[0016] In some embodiments, the collecting unit comprises:

[0017] The collecting element is arranged in the crushing process, the conveying process or the sorting process, and is used to absorb the waste gas generated during the dismantling of the used refrigerators.

[0018] In some embodiments, the collecting unit further comprises:

[0019] The first filter element is arranged on the collecting element and is used for filtering the exhaust gas to filter out large-size particulate matter.

[0020] In some embodiments, the delivery unit includes:

[0021] a plurality of first branch conveying elements, each of which is connected to the corresponding collecting unit and is used to convey the exhaust gas;

[0022] The first main conveying element is connected to the plurality of first branch conveying elements and the dust removal unit respectively, and is used to convey the exhaust gas to the dust removal unit.

[0023] In some embodiments, the delivery unit further comprises:

[0024] A plurality of first valve elements are respectively arranged on corresponding first branch conveying elements, and are used to control the opening and closing of the first branch conveying elements.

[0025] In some embodiments, the delivery unit further comprises:

[0026] The second valve element is provided on the first main conveying element and is used to control the opening and closing of the main conveying element.

[0027] In some embodiments, the dust removal unit includes:

[0028] a dust removal element, the dust removal element being in communication with the conveying unit and the adsorption unit respectively, and being used for removing dust and particulate matter from the exhaust gas by performing a dust removal treatment on the exhaust gas through negative pressure;

[0029] a first air inlet element, the first air inlet element being disposed on a first side of the dust removal element and being in communication with the conveying unit and the dust removal element, and being configured to convey exhaust gas to the dust removal element;

[0030] A first gas outlet element is provided on the second side of the dust removal element and is connected to the adsorption unit, and is used for conveying the waste gas after the dust removal process to the adsorption unit.

[0031] In some embodiments, the dust removal unit further comprises:

[0032] A first air guiding element is provided at the second end of the first air outlet element and is connected to the adsorption unit, and is used for guiding the flow direction and distribution of the gas.

[0033] In some embodiments, the dust removal unit further comprises:

[0034] A third valve element is provided at the first gas outlet element, and is used to control the flow rate of the gas in the first gas outlet element.

[0035] In some embodiments, the dust removal unit further comprises:

[0036] The second filter element is arranged on the first air outlet element and is used to filter the exhaust gas of the first air outlet element to remove impurities.

[0037] In some embodiments, the adsorption unit comprises:

[0038] a first housing element, the first housing element being disposed on a side of the dust removal unit;

[0039] a second air inlet element, the second air inlet element being disposed on the first side of the first housing element and being in communication with the dust removal unit, and being configured to transport the exhaust gas after dust removal to the first housing element;

[0040] a plurality of adsorption elements, the plurality of adsorption elements being distributed on the first housing element and configured to perform multi-stage adsorption treatment on the exhaust gas after the dust removal treatment to remove odor, organic gas, and harmful gas from the exhaust gas;

[0041] The second gas outlet element is arranged on the second side of the first shell element and is connected to the catalytic unit, and is used to transport the exhaust gas treated by multi-stage adsorption to the catalytic unit.

[0042] In some embodiments, the adsorption unit further comprises:

[0043] A fourth valve element is provided at the second gas outlet element, and is used to control the flow rate of the gas in the second gas outlet element.

[0044] In some embodiments, the catalytic unit comprises:

[0045] a second housing element, the second housing element being disposed on a side of the adsorption unit;

[0046] a third air intake component, the third air intake component being disposed at the bottom end of the second shell component and being in communication with the adsorption unit, and being configured to transport the exhaust gas after the multi-stage adsorption treatment to the second shell component;

[0047] a heating element, the heating element being disposed in the second housing element and being used for heating the exhaust gas;

[0048] a heat storage element, the heat storage element being disposed downstream of the heating element and being used to store residual heat of the heating element;

[0049] a catalytic element, the catalytic element being disposed downstream of the heat storage element and configured to catalytically react with the heated gas to generate harmless products;

[0050] A third gas outlet element is provided at the top end of the second shell element and is connected to the spray unit, and is used for delivering harmless products to the spray unit.

[0051] In some embodiments, the catalytic unit further comprises:

[0052] A heat-insulating element is provided on the second shell element and is used to keep the exhaust gas warm.

[0053] In some embodiments, the catalytic unit further comprises:

[0054] A temperature monitoring element is provided in the second housing element and is located downstream of the heating element, and is used to monitor the temperature of the exhaust gas.

[0055] In some embodiments, the catalytic unit further comprises:

[0056] The second air guide element is arranged at the top of the third air inlet element and is used to guide the flow direction and distribution of the gas.

[0057] In some embodiments, the catalytic unit further comprises:

[0058] A fifth valve element is provided at the third gas outlet element and is used to control the flow rate of the gas in the third gas outlet element.

[0059] In some embodiments, the catalytic unit further comprises:

[0060] The first circulation element is connected to the third air inlet element and the third air outlet element respectively, and is used to circulate the exhaust gas for multiple catalysis.

[0061] In some embodiments, the spray unit includes:

[0062] a third housing element, the third housing element being disposed on a side of the catalytic unit;

[0063] a fourth air intake element, the fourth air intake element being disposed on a side of the third housing element and being in communication with the catalytic unit, and being configured to transport harmless products to the third housing element;

[0064] a spraying element, the spraying element being disposed on the third housing element and being used for spraying harmless products;

[0065] a liquid discharge element, the liquid discharge element being arranged at the bottom end of the third shell element and being used for discharging the spraying liquid of the third shell element;

[0066] a fourth gas outlet element, the fourth gas outlet element being disposed at the top end of the third shell element and being used to deliver harmless products after spraying treatment;

[0067] a liquid delivery element, the liquid delivery element being in communication with the spraying element and being used for delivering spraying liquid to the spraying element;

[0068] A liquid storage element is connected to the liquid delivery element and is used to deliver spraying liquid to the liquid delivery element.

[0069] In some embodiments, the spray unit further comprises:

[0070] A packing element is provided in the third shell element and is located between the fourth air inlet element and the spray element, and is used to increase the contact area between the spraying liquid and the harmless product.

[0071] In some embodiments, the spray unit further comprises:

[0072] A sixth valve element is provided at the fourth gas outlet element and is used to control the opening and closing of the fourth gas outlet element.

[0073] In some embodiments, the spray unit further comprises:

[0074] A seventh valve element is provided on the liquid delivery element and is used to control the opening and closing of the liquid delivery element.

[0075] In some embodiments, the spray unit further comprises:

[0076] The second circulation element is connected to the liquid discharge element and the liquid storage element respectively, and is used for circulating the spraying liquid.

[0077] In some embodiments, the catalytic unit further comprises:

[0078] A ninth valve element is provided on the first circulation element and is used to control the opening and closing of the first circulation element.

[0079] In some embodiments, the spray unit further comprises:

[0080] An eighth valve element is provided on the second circulation element and is used to control the opening and closing of the second circulation element.

[0081] In some embodiments, the exhaust gas treatment device further comprises:

[0082] An air filling unit is connected to the delivery unit and is used to deliver safety gas to the delivery unit to dilute the concentration of cyclopentane in the delivery unit or the environment.

[0083] In some embodiments, the exhaust gas treatment device further comprises:

[0084] A first monitoring unit is provided in the catalytic unit and is used to monitor the concentration of cyclopentane in the catalytic unit.

[0085] In some embodiments, the exhaust gas treatment device further comprises:

[0086] A plurality of second monitoring units are distributed in the delivery unit and are used to monitor the concentration of cyclopentane in the delivery unit.

[0087] In some embodiments, the exhaust gas treatment device further comprises:

[0088] The third monitoring unit is provided at the output end of the spray unit and is used to monitor the concentration of cyclopentane output by the spray unit.

[0089] In some embodiments, the inflation unit comprises:

[0090] A gas supply element, the gas supply element is used to store safety gas;

[0091] a second main conveying element, the second main conveying element being in communication with the gas supply element and configured to output safety gas;

[0092] A plurality of second branch conveying elements, the first ends of which are respectively connected to the second main conveying elements, and the second ends of which are respectively connected to the plurality of conveying units, are used to convey safety gas to the conveying units.

[0093] In some embodiments, the inflation unit further comprises:

[0094] A tenth valve element is provided on the second main path conveying element, and is used to control the opening and closing of the second main path conveying element.

[0095] In some embodiments, the inflation unit further comprises:

[0096] A plurality of eleventh valve elements are respectively arranged on corresponding second branch conveying elements, and are used to control the opening and closing of the second branch conveying elements.

[0097] In some embodiments, the inflation unit further comprises:

[0098] A one-way element is provided on the second main conveying element and is located upstream of the tenth valve element, and is used to allow the safety gas to flow in one direction.

[0099] The second aspect of the present invention is to provide an exhaust gas treatment system for a waste refrigerator dismantling line, comprising:

[0100] An exhaust gas treatment device as described in any one of the first aspects;

[0101] a driving device, the driving device being connected to the exhaust gas treatment device and being used to drive the exhaust gas treatment device to collect the exhaust gas and drive the flow of the exhaust gas;

[0102] A control device is connected to the exhaust gas treatment device and is used to control the working state of the exhaust gas treatment device and set the working parameters of the exhaust gas treatment device.

[0103] The present invention adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0104] The utility model discloses an exhaust gas treatment device and system for a waste refrigerator dismantling line. The device utilizes a collection unit and a conveying unit to collect and convey the exhaust gas in a timely manner, and utilizes a dust removal unit to process and filter the dust in the exhaust gas. The device utilizes an adsorption unit to perform multi-stage adsorption of odor, organic gas and harmful gas in the exhaust gas, with an exhaust gas removal rate of 98%, high catalytic efficiency, and solves the problem of low exhaust gas treatment efficiency. The device utilizes a catalytic unit to perform a thermal catalytic reaction on the exhaust gas to produce harmless products such as carbon dioxide and water, with an exhaust gas removal rate of 99%, saving energy, and solving the problem of new harmful gases generated by exhaust gas treatment. The problem of gas is solved; the product is then sprayed through a spray unit cycle until it meets the emission requirements and the residual gas is discharged; at the same time, a first monitoring unit is set to monitor the concentration of cyclopentane in the catalytic reaction product in real time, and a cyclic catalytic reaction is carried out according to actual conditions; the second monitoring unit is used to monitor the concentration of cyclopentane in the exhaust gas collected by the collection unit in real time, and when the preset concentration is exceeded, the inflation unit is used to promptly inject safety gas to dilute the concentration of cyclopentane, so as to ensure that the cyclopentane concentration in the collection system and the environment is within a safe range to avoid explosion; the problem of no monitoring and safety treatment device for exhaust gas at the collection port is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] Figure 1 1 is a schematic diagram of an exhaust gas treatment device according to an embodiment of the present invention (I);

[0106] Figure 2 is a schematic diagram of a collection unit according to an embodiment of the present utility model;

[0107] Figure 3 is a schematic diagram of a conveying unit according to an embodiment of the present utility model;

[0108] Figure 4 is a schematic diagram of a dust removal unit according to an embodiment of the present utility model;

[0109] Figure 5 is a schematic diagram of an adsorption unit according to an embodiment of the present utility model;

[0110] Figure 6 is a schematic diagram of a catalytic unit according to an embodiment of the present invention (1);

[0111] Figure 7 is a schematic diagram of a spray unit according to an embodiment of the present utility model;

[0112] Figure 8 2 is a schematic diagram of a catalytic unit according to an embodiment of the present invention;

[0113] Figure 9 Schematic diagram of an exhaust gas treatment device according to an embodiment of the present invention (II);

[0114] Figure 10 Schematic diagram of an exhaust gas treatment device according to an embodiment of the present invention (III);

[0115] Figure 11 Schematic diagram of an exhaust gas treatment device according to an embodiment of the present invention (four);

[0116] Figure 12 is a schematic diagram of an inflation unit according to an embodiment of the present utility model;

[0117] Figure 13 Schematic diagram of an exhaust gas treatment device according to an embodiment of the present invention (V).

[0118] The accompanying drawings are as follows:

[0119] 100, collecting unit; 101, collecting element; 102, first filter element;

[0120] 200, conveying unit; 201, first branch conveying element; 202, first main conveying element; 203, first valve element; 204, second valve element;

[0121] 300, dust removal unit; 301, dust removal element; 302, first air inlet element; 303, first air outlet element; 304, first air guide element; 305, third valve element; 306, second filter element;

[0122] 400, adsorption unit; 401, first housing element; 402, second air inlet element; 403, adsorption element; 404, second air outlet element; 405, fourth valve element;

[0123] 500, catalytic unit; 501, second housing element; 502, third air inlet element; 503, heating element; 504, heat storage element; 505, catalytic element; 506, third air outlet element; 507, heat preservation element; 508, temperature monitoring element; 509, second air guide element; 510, fifth valve element; 511, second circulation element; 512, ninth valve element;

[0124] 600, spray unit; 601, third housing element; 602, fourth air inlet element; 603, spray element; 604, liquid discharge element; 605, fourth air outlet element; 606, liquid delivery element; 607, liquid storage element; 608, packing element; 609, sixth valve element; 610, seventh valve element; 611, first circulation element; 612, eighth valve element;

[0125] 700, first monitoring unit;

[0126] 800, second monitoring unit;

[0127] 900, inflation unit; 901, air supply element; 902, second main conveying element; 903, second branch conveying element; 904, tenth valve element; 905, eleventh valve element; 906, one-way element;

[0128] 1000. The third monitoring unit. DETAILED DESCRIPTION

[0129] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is described and illustrated below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0130] Obviously, the drawings described below are merely examples or embodiments of the present application. Those skilled in the art can, without inventive effort, apply the present application to other similar scenarios based on these drawings. Furthermore, it is also understood that, although the effort involved in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, changes in design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as an insufficiency of the content disclosed in this application.

[0131] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments unless there is a conflict.

[0132] Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the technical field to which this application belongs. The words "one", "a", "the" and the like used in this application do not indicate a limit on quantity and may indicate the singular or plural. The terms "include", "comprise", "have" and any variations thereof used in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or units (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units that are inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The word "multiple" used in this application means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.

[0133] Example 1

[0134] This embodiment relates to the exhaust gas treatment device of the present utility model.

[0135] An illustrative embodiment of the present invention is as follows: Figure 1 As shown, an exhaust gas treatment device for a waste refrigerator dismantling line includes several collecting units 100, a conveying unit 200, a dust removal unit 300, an adsorption unit 400, a catalytic unit 500 and a spray unit 600. Among them, several collection units 100 are respectively arranged in the crushing process, conveying process and sorting process of the used refrigerators, and are used to absorb the waste gas generated during the dismantling process of the used refrigerators; the conveying units 200 are respectively connected to the several collection units 100 for conveying the waste gas; the dust removal unit 300 is connected to the conveying unit 200 for performing dust removal treatment on the waste gas to remove dust and particulate matter in the waste gas; the adsorption unit 400 is connected to the dust removal unit 300 for performing multi-stage adsorption treatment on the waste gas after the dust removal treatment to remove odor, organic gas and harmful gas in the waste gas; the catalytic unit 500 is connected to the adsorption unit 400 for thermally catalyzing the waste gas after the multi-stage adsorption treatment to generate harmless products; the spray unit 600 is connected to the catalytic unit 500 for spraying the harmless products obtained by the thermal catalytic treatment.

[0136] like Figure 2 As shown, the collecting unit 100 includes a collecting element 101. The collecting element 101 is provided in the crushing process, the conveying process or the sorting process, and is used to absorb waste gas generated during the dismantling of waste refrigerators.

[0137] The cross section of the collecting element 101 is trapezoidal.

[0138] In some embodiments, the collecting element 101 is a collecting hood.

[0139] Furthermore, the collection unit 100 further includes a first filter element 102. The first filter element 102 is disposed on the collection element 101 and is used to filter the exhaust gas to filter out large-sized particles.

[0140] The size of the first filter element 102 matches the size of the collecting element 101. Generally, the radial size (such as the outer diameter) of the first filter element 102 is smaller than the outer diameter of the collecting element 101, and the radial size (such as the outer diameter) of the first filter element 102 is larger than the inner diameter of the collecting element 101.

[0141] In some embodiments, the first filter element 102 is a first filter screen or a first filter.

[0142] like Figure 3As shown, the conveying unit 200 includes a plurality of first branch conveying elements 201 and a first main conveying element 202. The plurality of first branch conveying elements 201 are respectively connected to corresponding collection units 100 for conveying exhaust gas; the first main conveying elements 202 are respectively connected to the first branch conveying elements 201 and the dust removal unit 300 for conveying exhaust gas to the dust removal unit 300.

[0143] Specifically, several first branch conveying elements 201 are respectively connected to corresponding collecting elements 101.

[0144] The first branch conveying element 201 and the collecting element 101 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to screw connection and flange connection.

[0145] The size of the first branch transport element 201 matches the size of the collecting element 101. Generally, the radial size (eg, outer diameter) of the first branch transport element 201 is smaller than the radial size (eg, outer diameter) of the collecting element 101.

[0146] The number of the first branch conveying elements 201 matches the number of the collecting units 100. Generally, the number of the first branch conveying elements 201 is equal to the number of the collecting units 100.

[0147] In some embodiments, the first branch transport element 201 is a first branch transport tube.

[0148] The first main conveying element 202 and the first branch conveying element 201 are connected by a fixed connection, wherein the fixed connection method includes but is not limited to integral molding and welding.

[0149] The size of the first main conveying element 202 matches the size of the first branch conveying element 201. Generally, the radial size (eg, outer diameter) of the first main conveying element 202 is not smaller than the radial size (eg, outer diameter) of the first branch conveying element 201.

[0150] In some embodiments, the first main conveying element 202 is a first main conveying pipe.

[0151] Furthermore, the conveying unit 200 further includes a plurality of first valve components 203. The plurality of first valve components 203 are respectively disposed on corresponding first branch conveying components 201, and are used to control the opening and closing of the first branch conveying components 201.

[0152] The number of the first valve elements 203 matches the number of the first branch conveying elements 201. Generally, the number of the first valve elements 203 is equal to the number of the first branch conveying elements 201.

[0153] In some embodiments, the first valve element 203 is a first stop valve.

[0154] Furthermore, the conveying unit 200 further includes a second valve element 204 , wherein the second valve element 204 is provided on the first main conveying element 202 and is used to control the opening and closing of the first main conveying element 202 .

[0155] In some embodiments, the second valve element 204 is a second shut-off valve.

[0156] like Figure 4 As shown, the dust removal unit 300 includes a dust removal element 301, a first air inlet element 302, and a first air outlet element 303. The dust removal element 301 is connected to the conveying unit 200 and the adsorption unit 400, respectively, and is used to remove dust and particulate matter from the exhaust gas by applying negative pressure. The first air inlet element 302 is disposed on a first side of the dust removal element 301 and is connected to the conveying unit 200 and the dust removal element 301, and is used to transport the exhaust gas to the dust removal element 301. The first air outlet element 303 is disposed on a second side of the dust removal element 301 and is connected to the adsorption unit 400, and is used to transport the exhaust gas after dust removal to the adsorption unit 400.

[0157] Specifically, the first air intake element 302 is connected to the first main conveying element 202 .

[0158] In some embodiments, the dust removal element 301 is a pulse dust collector.

[0159] The first air inlet element 302 is connected to the first main conveying element 202 in a detachable manner, wherein the detachable connection manner includes but is not limited to screw connection and flange connection.

[0160] The size of the first air inlet element 302 matches the size of the first main conveying element 202. Generally, the radial size (eg, outer diameter) of the first air inlet element 302 is equal to the radial size (eg, outer diameter) of the first main conveying element 202.

[0161] The size of the first air inlet element 302 matches the size of the dust removal element 301. Generally, the radial size (such as outer diameter) of the first air inlet element 302 is smaller than the radial size (such as length and width) of the cross section of the dust removal element 301 in which it is located.

[0162] In some embodiments, the first air inlet component 302 is a first air inlet pipe or a first air inlet port.

[0163] The first gas outlet element 303 and the dust removal element 301 are connected in a fixed connection or a detachable connection, wherein the fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to screw connection and flange connection.

[0164] The size of the first gas outlet element 303 matches the size of the dust removal element 301. Generally, the radial size (such as outer diameter) of the first gas outlet element 303 is smaller than the radial size (such as length and width) of the cross section of the dust removal element 301 in which it is located.

[0165] In some embodiments, the first air outlet element 303 is a first air outlet pipe or a first air outlet.

[0166] Furthermore, the dust removal unit 300 further includes a first air guide element 304. The first air guide element 304 is disposed at the second end of the first gas outlet element 303 and is in communication with the adsorption unit 400 for guiding the flow and distribution of the gas.

[0167] The first air guide element 304 and the first air outlet element 303 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to screw connection and flange connection.

[0168] The size of the first air guide element 304 matches that of the first air outlet element 303. Generally, the radial size (such as outer diameter, length, width) of the distal end of the first air guide element 304 is larger than the radial size (such as outer diameter) of the first air outlet element 303.

[0169] In some embodiments, the first air guiding element 304 is a first air distribution plate.

[0170] Furthermore, the dust removal unit 300 further includes a third valve element 305 , wherein the third valve element 305 is provided at the first gas outlet element 303 and is used to control the flow rate of the gas in the first gas outlet element 303 .

[0171] In some embodiments, the third valve element 305 is a first regulating valve.

[0172] Furthermore, the dust removal unit 300 further includes a second filter element 306. The second filter element 306 is disposed on the first gas outlet element 303 and is used to filter the exhaust gas from the first gas outlet element 303 to remove impurities in the exhaust gas.

[0173] The size of the second filter element 306 matches the size of the first air outlet element 303. Generally, the outer diameter of the second filter element 306 is smaller than the outer diameter of the first air outlet element 303, and the outer diameter of the second filter element 306 is larger than the inner diameter of the first air outlet element 303.

[0174] In some embodiments, the second filter element 306 is a second filter screen or a second filter.

[0175] like Figure 5As shown, the adsorption unit 400 includes a first housing element 401, a second air inlet element 402, a plurality of adsorption elements 403, and a second air outlet element 404. The first housing element 401 is disposed on the side of the dust removal unit 300; the second air inlet element 402 is disposed on a first side of the first housing element 401 and communicates with the dust removal unit 300, for conveying the dust-treated exhaust gas to the first housing element 401; the plurality of adsorption elements 403 are distributed throughout the first housing element 401 and are configured to perform multi-stage adsorption treatment on the dust-treated exhaust gas to remove odors, organic gases, and harmful gases from the exhaust gas; and the second air outlet element 404 is disposed on a second side of the first housing element 401 and communicates with the catalytic unit 500, for conveying the multi-stage adsorption-treated exhaust gas to the catalytic unit 500.

[0176] Specifically, the first housing element 401 is connected to the first wind guiding element 304 .

[0177] The first housing element 401 and the first air guide element 304 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0178] The size of the first housing element 401 matches the size of the first air guide element 304. Generally, the radial size (such as outer diameter, length, width, height) of the first housing element 401 is larger than the radial size (such as outer diameter, length, width) of the first air guide element 304.

[0179] In some embodiments, the first housing element 401 is a first accommodating box.

[0180] The size of the second air inlet element 402 matches the size of the first housing element 401. Generally, the radial size (such as outer diameter, length, width) of the second air inlet element 402 is smaller than the radial size (such as outer diameter, length, width) of the cross section of the first housing element 401 in which the second air inlet element 402 is located.

[0181] The size of the second air inlet element 402 matches the size of the first air guide element 304. Generally, the radial size (such as outer diameter, length, width) of the second air inlet element 402 is smaller than the radial size (such as outer diameter, length, width) of the first air guide element 304.

[0182] In some embodiments, the second air inlet component 402 is a second air inlet pipe or a second air inlet port.

[0183] The adsorption element 403 and the first housing element 401 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a snap connection.

[0184] The size of the adsorption element 403 matches the size of the first shell element 401. Generally, the radial size (such as outer diameter, length, width) of the adsorption element 403 is smaller than the outer diameter (such as length, width) of the first shell element 401, and larger than the inner diameter (such as length, width) of the first shell element 401.

[0185] A plurality of adsorption elements 403 are arranged at intervals along the axial direction of the first shell element 401 .

[0186] In some embodiments, the adsorption element 403 is a sulfur-loaded activated carbon mesh.

[0187] The second air outlet element 404 is connected to the first housing element 401 in a detachable connection, wherein the detachable connection includes but is not limited to a flange connection.

[0188] The size of the second gas outlet element 404 matches the size of the first housing element 401. Generally, the radial size (such as outer diameter, length, width) of the second gas outlet element 404 is smaller than the radial size (such as outer diameter, length, width) of the cross section of the first housing element 401 in which the second gas outlet element 404 is located.

[0189] In some embodiments, the second air outlet element 404 is a second air outlet pipe or a second air outlet.

[0190] Furthermore, the adsorption unit 400 further includes a fourth valve component 405 , wherein the fourth valve component 405 is disposed at the second gas outlet component 404 and is used to control the flow rate of the gas in the second gas outlet component 404 .

[0191] In some embodiments, the fourth valve element 405 is a second regulating valve.

[0192] like Figure 6 As shown, the catalytic unit 500 includes a second housing element 501, a third air inlet element 502, a heating element 503, a heat storage element 504, a catalytic element 505, and a third air outlet element 506. The second housing element 501 is disposed on the side of the adsorption unit 400; the third air inlet element 502 is disposed at the bottom end of the second housing element 501 and communicates with the adsorption unit 400, for delivering exhaust gas after multi-stage adsorption treatment to the second housing element 501; the heating element 503 is disposed in the second housing element 501 for heating the exhaust gas; the heat storage element 504 is disposed downstream of the heating element 503 for storing waste heat from the heating element 503; the catalytic element 505 is disposed downstream of the heat storage element 504 for catalytically reacting with the heated gas to produce harmless products; and the third air outlet element 506 is disposed at the top end of the second housing element 501 and communicates with the spray unit 600 for delivering the harmless products to the spray unit 600.

[0193] Specifically, the third air inlet element 502 is connected to the second air outlet element 404 .

[0194] In some embodiments, the products generated by the thermocatalytic reaction are CO2 and H2O.

[0195] In some embodiments, the second housing element 501 is a second accommodating box.

[0196] The third air inlet element 502 and the second air outlet element 404 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0197] The size of the third air inlet element 502 matches the size of the second air outlet element 404. Generally, the radial size (such as outer diameter, length, width) of the bottom end of the third air inlet element 502 is equal to the radial size (such as outer diameter, length, width) of the second air outlet element 404.

[0198] The dimensions of the third air inlet element 502 match those of the second housing element 501. Generally, the radial dimensions (e.g., outer diameter, length, width) of the third air inlet element 502 are smaller than the radial dimensions (e.g., outer diameter, length, width) of the cross section of the second housing element 501 in which the third air inlet element 502 is located.

[0199] In some embodiments, the third air inlet component 502 is a third air inlet pipe or a third air inlet port.

[0200] In some embodiments, the temperature range of the gas heated by the heating element 503 is 200-600°C.

[0201] In some embodiments, the heating element 503 is a heater, including but not limited to a microwave heater, an electric heating tube, and an infrared heater.

[0202] The heat storage element 504 and the second housing element 501 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0203] In some embodiments, the thermal storage element 504 is porous ceramic.

[0204] In some embodiments, the catalytic element 505 is a catalyst plate.

[0205] The third air outlet element 506 is connected to the second housing element 501 in a detachable connection, wherein the detachable connection includes but is not limited to a flange connection.

[0206] The size of the third gas outlet element 506 matches that of the second housing element 501. Generally, the radial size (such as outer diameter, length, width) of the third gas outlet element 506 is smaller than the radial size (such as outer diameter, length, width) of the cross section of the second housing element 501 in which the third gas outlet element 506 is located.

[0207] In some embodiments, the third air outlet element 506 is a third air outlet pipe or a third air outlet.

[0208] Furthermore, the catalytic unit 500 further includes a heat preservation element 507. The heat preservation element 507 is provided in the second housing element 501 for heat preservation of the exhaust gas.

[0209] The heat preservation element 507 and the second housing element 501 are connected in a detachable manner, wherein the detachable connection manner includes but is not limited to screw connection.

[0210] In some embodiments, the thermal insulation element 507 is a thermal insulation layer.

[0211] Furthermore, the catalytic unit 500 further includes a temperature monitoring element 508. The temperature monitoring element 508 is disposed in the second housing element 501 and is located downstream of the heating element 503 for monitoring the temperature of the exhaust gas.

[0212] More specifically, the temperature monitoring element 508 is located on the upper portion of the thermal storage element 504 .

[0213] In some embodiments, the temperature monitoring element 508 is a temperature monitor.

[0214] Furthermore, the catalytic unit 500 further includes a second air guide element 509. The second air guide element 509 is disposed at the top of the third air inlet element 502 to guide the flow direction and distribution of the gas.

[0215] The second air guide element 509 and the third air outlet element 506 are connected in a fixed connection or a detachable connection, wherein the fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to screw connection and flange connection.

[0216] The size of the second air guide element 509 matches that of the third air outlet element 506. Generally, the radial size (such as outer diameter, length, width) of the distal end of the second air guide element 509 is larger than the radial size (such as outer diameter) of the third air outlet element 506.

[0217] The size of the second air guide element 509 matches the size of the second housing element 501. Generally, the radial size (such as outer diameter, length, width) of the second air guide element 509 is not larger than the radial size (such as inner diameter, length, width) of the second housing element 501.

[0218] In some embodiments, the second air guiding element 509 is a second air distribution plate.

[0219] Furthermore, the catalytic unit 500 further includes a fifth valve element 510 , wherein the fifth valve element 510 is disposed at the third gas outlet element 506 and is used to control the flow rate of the gas in the third gas outlet element 506 .

[0220] In some embodiments, the fifth valve element 510 is a third regulating valve.

[0221] like Figure 7 As shown, the spray unit 600 includes a third housing element 601 , a fourth air inlet element 602 , a spray element 603 , a liquid discharge element 604 , a fourth air outlet element 605 , a liquid delivery element 606 and a liquid storage element 607 . Among them, the third housing element 601 is arranged on the side of the catalytic unit 500; the fourth air inlet element 602 is arranged on the side of the third housing element 601 and is connected to the catalytic unit 500, and is used to transport harmless products to the third housing element 601; the spray element 603 is arranged on the third housing element 601, and is used to spray the harmless products; the discharge element 604 is arranged at the bottom end of the third housing element 601, and is used to output the spray liquid of the third housing element 601; the fourth air outlet element 605 is arranged at the top end of the third housing element 601, and is used to transport the harmless products after spraying; the liquid delivery element 606 is connected to the spray element 603, and is used to transport the spray liquid to the spray element 603; the liquid storage element 607 is connected to the liquid delivery element 606, and is used to transport the spray liquid to the liquid delivery element 606.

[0222] Specifically, the fourth air inlet element 602 is connected to the third air outlet element 506 .

[0223] The spraying liquid includes but is not limited to water, hydrochloric acid solution, and sodium hydroxide solution.

[0224] In some embodiments, the third housing element 601 is a spray tower.

[0225] The fourth air inlet element 602 and the third air outlet element 506 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to flange connection.

[0226] The size of the fourth air inlet element 602 matches the size of the third air outlet element 506. Generally, the outer diameter of the fourth air inlet element 602 is equal to the outer diameter of the third air outlet element 506.

[0227] The size of the fourth air inlet element 602 matches the size of the third housing element 601. Generally, the radial size (such as outer diameter) of the fourth air inlet element 602 is smaller than the radial size (such as outer diameter, length, width, height) of the third housing element 601.

[0228] In some embodiments, the fourth air inlet component 602 is a fourth air inlet pipe or a fourth air inlet port.

[0229] In some embodiments, the spraying element 603 includes a fixing member, a plurality of spray heads, and a first delivery pipe. The fixing member is hollow and located within the third housing member 601. The plurality of spray heads are arranged in an array at the bottom end of the fixing member for spraying the spray liquid. The first delivery pipe is connected to the fixing member and the liquid delivery element 606, respectively, for delivering the spray liquid to the spray heads.

[0230] The connection between the drainage element 604 and the third housing element 601 is fixed or detachable, wherein the fixed connection includes but is not limited to welding, and the detachable connection includes but is not limited to flange connection.

[0231] The size of the drainage element 604 matches the size of the third housing element 601. Generally, the radial size (eg, outer diameter) of the drainage element 604 is smaller than the radial size (eg, outer diameter) of the third housing element 601.

[0232] In some embodiments, the drainage element 604 is a drainage tube.

[0233] The liquid delivery element 606 is connected to the first delivery pipe in a detachable manner, wherein the detachable connection manner includes but is not limited to a flange connection.

[0234] In some embodiments, the liquid delivery element 606 is a second delivery tube.

[0235] In some embodiments, the liquid storage element 607 is a liquid storage box, a liquid storage tank, or a liquid storage barrel.

[0236] Furthermore, the spray unit 600 further includes a filler element 608. The filler element 608 is disposed in the third housing element 601 and located between the fourth air inlet element 602 and the spray element 603, for increasing the contact area between the spray liquid and the harmless product.

[0237] In some embodiments, filler elements 608 include, but are not limited to, polyhedral hollow spheres.

[0238] Furthermore, the spray unit 600 further includes a sixth valve component 609 , wherein the sixth valve component 609 is provided at the fourth gas outlet component 605 and is used to control the opening and closing of the fourth gas outlet component 605 .

[0239] In some embodiments, the sixth valve element 609 is a third shut-off valve.

[0240] Furthermore, the spray unit 600 further includes a seventh valve element 610 , wherein the seventh valve element 610 is provided on the liquid delivery element 606 and is used to control the opening and closing of the liquid delivery element 606 .

[0241] In some embodiments, the seventh valve element 610 is a fourth shut-off valve.

[0242] Furthermore, the spray unit 600 further includes a first circulation element 611. The first circulation element 611 is connected to the liquid discharge element 604 and the liquid storage element 607 respectively, and is used to circulate the spray liquid.

[0243] The first circulation element 611 is connected to the liquid discharge element 604 and the liquid storage element 607 in a detachable manner, wherein the detachable connection manner includes but is not limited to flange connection.

[0244] In some embodiments, the first circulation element 611 is a third delivery pipe.

[0245] Furthermore, the spray unit 600 further includes an eighth valve element 612 , wherein the eighth valve element 612 is disposed on the first circulation element 611 and is used to control the opening and closing of the first circulation element 611 .

[0246] In some embodiments, the eighth valve element 612 is a fifth shut-off valve.

[0247] The use method of this utility model:

[0248] (1) The collecting element 101 sucks waste gas during the crushing process, conveying process, sorting process and other processes of the refrigerator disassembly line, filters the large-particle materials through the first filter element 102, and the waste gas is conveyed to the first main conveying element 202 through the first branch conveying element 201, and then conveyed to the first air intake element 302 by the first branch conveying element 201. The first valve element 203 controls whether the first branch conveying element 201 conveys gas to the main conveying element; the second valve element 204 controls whether the first main conveying element 202 conveys gas to the dust removal element 301.

[0249] (2) After the exhaust gas is input into the dust removal element 301, the exhaust gas is dust-removed by the dust removal element 301 and outputted from the first exhaust element 303. Then, the second filter element 306 filters the impurities in the gas again and then inputs the gas into the second air inlet element 402 through the first air guide element 304. The third valve element 305 controls the gas flow rate.

[0250] (3) The exhaust gas is uniformly input into the first housing element 401 after passing through the first air guide element 304, and is output from the second outlet element 404 after being adsorbed by multiple adsorption elements 403. The fourth valve element 405 controls the flow rate of the gas.

[0251] (4) The adsorbed exhaust gas enters the second shell element 501 through the third air inlet element 502, and the air flow is guided to flow evenly through the second air guide element 509. The heating element 503 heats the air flow, and the heat preservation element 507 keeps the gas in the second shell element 501 warm. The temperature monitoring element 508 monitors the temperature of the heated gas. When the gas temperature exceeds the preset range, the temperature monitoring element 508 transmits the exceeding signal to the control system, and the control system adjusts the heating temperature of the heating element 503 accordingly to meet the requirements of the thermal catalytic reaction; the heated gas undergoes a thermal catalytic reaction with the catalytic element 505 through the heat storage element 504, and the harmless reaction products are output through the third outlet element 506. The excess heat of the catalytic reaction is stored by the heat storage element 504 for continuous reaction. The fifth valve element 510 controls the gas flow rate of the third outlet element 506.

[0252] (5) The reaction product output by the third gas outlet element 506 enters the third housing element 601 through the fourth gas inlet element 602, the spray liquid is output by the liquid storage element 607, and is transported to the spray element 603 through the liquid delivery element 606. The spray element 603 evenly sprays the spray liquid on the harmless product, and the harmless gas is output upward through the packing element 608 and finally discharged by the fourth gas outlet element 605; the spray liquid enters the liquid storage element 607 through the first circulation element 611 and is recycled.

[0253] The technical effects of the utility model are as follows: the collection unit and the conveying unit are used to collect and convey the waste gas in a timely manner, and the dust removal unit is used to process and filter the dust and particulate matter in the waste gas; the adsorption unit is used to multi-stage adsorption of odor, organic gas and harmful gas in the waste gas, and the waste gas removal rate reaches 98%, with high removal efficiency, which solves the problem of low waste gas treatment efficiency; and the catalytic unit is used to perform a thermal catalytic reaction on the waste gas to produce harmless products such as carbon dioxide and water, with a waste gas removal rate of 99%, and energy is saved, which solves the problem of new harmful gases generated by waste gas treatment; and then the product is sprayed through a spray unit cycle until the emission product meets the emission requirements and is discharged.

[0254] Example 2

[0255] This embodiment is a variation of embodiment 1.

[0256] like Figure 8As shown, the catalytic unit 500 further includes a second circulation element 511. The second circulation element 511 is connected to the third air inlet element 502 and the third air outlet element 506 respectively, and is used to circulate the exhaust gas for multiple catalysis.

[0257] Specifically, the second circulation element 511 is connected to the third air inlet element 502 and the third air outlet element 506 by fixed connection, wherein the fixed connection method includes but is not limited to welding.

[0258] The size of the second circulation element 511 matches the size of the third air inlet element 502 and the third air outlet element 506. Generally, the radial size (such as the outer diameter) of the second circulation element 511 is not larger than the radial size (such as the outer diameter) of the third air inlet element 502 and the third air outlet element 506.

[0259] In some embodiments, the second circulation element 511 is a fourth delivery pipe.

[0260] Furthermore, the catalytic unit 500 further includes a ninth valve element 512 , wherein the ninth valve element 512 is provided in the second circulation element 511 and is used to control the opening and closing of the second circulation element 511 .

[0261] In some embodiments, the ninth valve element 512 is a sixth shut-off valve.

[0262] like Figure 9 As shown, the exhaust gas treatment device further includes a first monitoring unit 700. The first monitoring unit 700 is provided in the catalytic unit 500 and is used to monitor the concentration of cyclopentane in the catalytic unit 500.

[0263] Specifically, the first monitoring unit 700 is disposed at the top of the second housing element 501 and is used to monitor the concentration of cyclopentane, a reaction product generated by the catalytic reaction.

[0264] In some embodiments, the first monitoring unit 700 is a first cyclopentane concentration monitor.

[0265] The method of using this embodiment is as follows:

[0266] During the catalytic reaction, when the first monitoring unit 700 detects that the concentration of cyclopentane in the reaction product in the catalytic unit 500 is higher than the preset standard, the signal is transmitted to the control system. The control system controls the ninth valve element 512 to open and the fifth valve element 510 to close, so that the reaction product is re-input into the second shell element 501 through the second circulation element 511 for a cyclic catalytic reaction; until the monitoring result of the first monitoring unit 700 meets the preset standard.

[0267] The technical effects of this embodiment are as follows: by setting up the first monitoring unit, the concentration of cyclopentane in the reaction product after the thermal catalytic reaction can be monitored in real time, and the second circulation element and the ninth valve element can be used to make the reaction product undergo a circulating catalytic reaction to ensure the complete reaction, so that the cyclopentane concentration in the reaction product generated after the catalytic reaction meets the requirements, providing a guarantee for safe discharge.

[0268] Example 3

[0269] This embodiment is a variation of Embodiments 1 and 2.

[0270] like Figure 10 As shown, the exhaust gas treatment device further includes a plurality of second monitoring units 800. The plurality of second monitoring units 800 are distributed in the delivery unit 200 and are used to monitor the concentration of cyclopentane in the delivery unit 200.

[0271] Specifically, a plurality of second monitoring units 800 are respectively disposed at the connection ends between the corresponding first branch conveying elements 201 and the corresponding collecting elements 101 , and are used to monitor the concentration of cyclopentane in the exhaust gas collected by the collecting elements 101 .

[0272] The number of the second monitoring units 800 matches the number of the first branch conveying elements 201. Generally, the number of the second monitoring units 800 is equal to the number of the first branch conveying elements 201.

[0273] In some embodiments, the second monitoring unit 800 is a second cyclopentane concentration monitor.

[0274] like Figure 11 As shown, the exhaust gas treatment device further includes an air filling unit 900. The air filling unit 900 is in communication with the delivery unit 200 and is used to deliver safety gas to the delivery unit 200 to dilute the concentration of cyclopentane in the delivery unit 200 or the environment.

[0275] In some embodiments, the safety gas includes, but is not limited to, nitrogen.

[0276] like Figure 12 As shown, the charging unit 900 includes a gas supply element 901, a second main conveying element 902, and a plurality of second branch conveying elements 903. The gas supply element 901 is used to store safety gas; the second main conveying element 902 is connected to the gas supply element 901 and is used to output safety gas; the first ends of the plurality of second branch conveying elements 903 are respectively connected to the second main conveying element 902, and the second ends of the plurality of second branch conveying elements 903 are respectively connected to the plurality of conveying units 200, for delivering safety gas to the conveying units 200.

[0277] Specifically, the plurality of second branch conveying elements 903 are respectively communicated with the corresponding plurality of first branch conveying elements 201 and are located upstream of the first valve element 203 for conveying safety gas to the first branch conveying elements 201 .

[0278] In some embodiments, the gas supply element 901 is a gas storage tank, including but not limited to a nitrogen storage tank.

[0279] The second main conveying element 902 and the air supply element 901 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to flange connection.

[0280] In some embodiments, the second main conveying element 902 is a second main conveying pipe.

[0281] The second branch conveying element 903 and the second main conveying element 902 are connected in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to flange connection.

[0282] The second branch conveying element 903 is connected to the first branch conveying element 201 in a fixed connection or a detachable connection. The fixed connection includes but is not limited to welding; the detachable connection includes but is not limited to flange connection.

[0283] The number of the second branch conveying elements 903 matches the number of the first branch conveying elements 201. Generally, the number of the second branch conveying elements 903 is equal to the number of the first branch conveying elements 201.

[0284] In some embodiments, the second branch transport element 903 is a second branch transport tube.

[0285] Furthermore, the inflation unit 900 further includes a tenth valve component 904 , wherein the tenth valve component 904 is disposed on the second main conveying component 902 and is used to control the opening and closing of the second main conveying component 902 .

[0286] In some embodiments, the tenth valve element 904 is a fourth shut-off valve.

[0287] Furthermore, the inflation unit 900 further includes a plurality of eleventh valve components 905 , wherein the plurality of eleventh valve components 905 are respectively disposed on corresponding second branch conveying components 903 , and are used to control the opening and closing of the second branch conveying components 903 .

[0288] The number of the eleventh valve elements 905 matches the number of the second branch transport elements 903. Generally, the number of the eleventh valve elements 905 is equal to the number of the second branch transport elements 903.

[0289] In some embodiments, the eleventh valve element 905 is a fifth shut-off valve.

[0290] Furthermore, the inflation unit 900 further includes a one-way element 906. The one-way element 906 is disposed on the second main conveying element 902 and upstream of the tenth valve element 904, and is used to allow the safety gas to flow in one direction.

[0291] In some embodiments, the one-way element 906 is a one-way control valve.

[0292] The method of using this embodiment is as follows:

[0293] When collecting waste gas, the second monitoring unit 800 monitors the concentration of cyclopentane in the collected waste gas. When the concentration of cyclopentane exceeds the preset standard, the control system will control the gas supply element 901 to deliver safety gas to the second main conveying element 902. The eleventh valve element 905 controls the opening and closing of the second main conveying element 902. The safety gas is transported to the corresponding collection element 101 through the second branch conveying element 903 to fill the environment or the first branch conveying element 201 and the first main conveying element 202 with safety gas, thereby diluting the concentration of cyclopentane in the gas until the concentration of cyclopentane monitored by the second monitoring unit 800 meets the preset standard. Among them, the tenth valve element 904 controls the opening and closing of the corresponding first branch conveying element 201 respectively, and the one-way element 906 controls the one-way outflow of safety gas to prevent the waste gas from flowing back and contaminating the gas supply element 901.

[0294] The technical effects of this embodiment are as follows:

[0295] By setting up a second monitoring unit, the concentration of cyclopentane in the exhaust gas collected by the collection unit can be monitored in time, and the concentration of cyclopentane in the environment can be judged. The concentration of cyclopentane in the collection unit or the environment can be diluted in time using the inflation unit, effectively avoiding explosion caused by excessive cyclopentane concentration.

[0296] Example 4

[0297] This embodiment is a variation of Embodiments 1 to 3.

[0298] like Figure 13 As shown, the exhaust gas treatment device further includes a third monitoring unit 1000. The third monitoring unit 1000 is provided at the output end of the spray unit 600 and is used to monitor the concentration of cyclopentane outputted by the spray unit 600.

[0299] Specifically, the third monitoring unit 1000 is disposed at the top of the third housing element 601 and is used to monitor the concentration of cyclopentane in the gas after spraying.

[0300] In some embodiments, the third monitoring unit 1000 is a third cyclopentane concentration monitor.

[0301] The method of using this embodiment is as follows:

[0302] During the exhaust gas treatment process, the reaction product that meets the preset cyclopentane concentration standard after the thermal catalytic reaction enters the third housing element 601 for spraying. The gas after the treatment is monitored by the third monitoring unit 1000. When the cyclopentane concentration meets the exhaust gas emission standard, the "Integrated Emission Standard of Air Pollutants" (GB16297-1996) is implemented, and the non-methane total hydrocarbon concentration is ≤60mg / m 3 , and discharged through the fourth gas outlet element 605 at a discharge rate of ≤10kg / h.

[0303] The technical effects of this embodiment are as follows: by providing the third monitoring unit, it is further ensured that the emission concentration of cyclopentane in the discharged product meets the requirements, thereby ensuring safe discharge.

[0304] Example 5

[0305] This embodiment relates to the exhaust gas treatment system of the present utility model.

[0306] An exemplary embodiment of the present invention provides an exhaust gas treatment system for a used refrigerator dismantling line, comprising an exhaust gas treatment device, a drive device, and a control device as described in any one of Embodiments 1 to 4. The drive device is connected to the exhaust gas treatment device and is used to drive the exhaust gas treatment device to collect exhaust gas and drive the flow of exhaust gas; the control device is connected to the exhaust gas treatment device and the drive device and is used to control the operating state of the exhaust gas treatment device and set the operating parameters of the exhaust gas treatment device.

[0307] Specifically, the driving device is respectively connected to the collection unit 100, the transmission unit, the dust removal unit 300, the adsorption unit 400, the catalytic unit 500, the spray unit 600 and the inflation unit 900; the control device is respectively connected to the collection unit 100, the transmission unit, the dust removal unit 300, the adsorption unit 400, the catalytic unit 500, the spray unit 600, the first monitoring unit 700, the second monitoring unit 800, the inflation unit 900 and the third monitoring unit 1000.

[0308] More specifically, the driving device is respectively connected to several first branch conveying elements 201, the first main conveying element 202, the dust removal element 301, the first gas outlet element 303, the second gas outlet element 404, the third gas outlet element 506, the fourth gas outlet element 605, the liquid storage element 607 and the gas supply element 901, and is used to drive the collection and spraying of exhaust gas and drive the gas flow; the control device is connected to the first valve element 203, the second valve element 204, the third valve element 305, the fourth valve element 405, the temperature monitoring element 508, the fifth valve element 510, the sixth valve element 609, the seventh valve element 610, the eighth valve element 612, the ninth valve element 512, the tenth valve element 904, the eleventh valve element 905, the one-way element 906, the first monitoring unit 700, the second monitoring unit 800, the third monitoring unit 1000 and the driving device.

[0309] In some embodiments, the driving device is a driver, including but not limited to a variable frequency fan, a motor, and a water pump.

[0310] In some embodiments, the control device is an electrical control system.

[0311] The method of using this embodiment is as follows:

[0312] The control device controls the driving device to provide driving force, thereby driving the collecting element 101 to collect the exhaust gas, the first branch conveying element 201, and the first main conveying element 202 to convey the gas, and at the same time drives the dust removal element 301 to remove dust from the exhaust gas, and drives the gas to flow in the dust removal element 301, the first shell element 401, the second shell element 501, and the third shell element 601, and drives the liquid storage element 607 to convey the spray liquid for spraying; the control device controls the collection, dust removal, adsorption, catalysis, spraying of the gas, the flow rate of the gas, and the spraying speed of the spray liquid, and at the same time monitors the temperature and concentration of the gas and controls the emission to ensure that the exhaust gas meets the safety standards after treatment before being discharged.

[0313] The technical effects of this embodiment are as follows: by setting up a driving device to drive the stable operation of the exhaust gas treatment device, it can be ensured that the exhaust gas is collected and transported in a timely manner. By controlling the driving device and the exhaust gas treatment device through the control device, it is possible to monitor the concentration of the exhaust gas and control the gas flow rate, thereby ensuring that the gas is fully adsorbed and catalyzed, thereby ensuring that the exhaust gas emissions meet the emission standards.

[0314] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for a waste refrigerator dismantling line, characterized in that: include: A plurality of collection units, each of which is respectively provided in the crushing process, the conveying process, and the sorting process of the waste refrigerators, and is used to absorb waste gas generated during the dismantling process of the waste refrigerators; a conveying unit, each of which is connected to the plurality of collecting units and is used to convey the exhaust gas; a dust removal unit, the dust removal unit being in communication with the conveying unit and being used for performing dust removal treatment on the exhaust gas to remove dust and particulate matter in the exhaust gas; an adsorption unit, the adsorption unit being connected to the dust removal unit and being used for performing multi-stage adsorption treatment on the exhaust gas after the dust removal treatment to remove odor, organic gas and harmful gas in the exhaust gas; a catalytic unit, the catalytic unit being in communication with the adsorption unit and being used for thermally catalyzing the exhaust gas after the multi-stage adsorption treatment to generate harmless products; A spray unit is connected to the catalytic unit and is used for spraying the harmless products obtained through the thermal catalytic treatment.

2. The exhaust gas treatment device according to claim 1, characterized in that The collecting unit comprises: A collecting element, which is provided in the crushing process, the conveying process or the sorting process, and is used to absorb waste gas generated during the dismantling of waste refrigerators; and / or The conveying unit includes: a plurality of first branch conveying elements, each of which is connected to the corresponding collecting unit and is used to convey the exhaust gas; a first main conveying element, the first main conveying element being connected to the plurality of first branch conveying elements and the dust removal unit, respectively, for conveying exhaust gas to the dust removal unit; and / or The dust removal unit comprises: a dust removal element, the dust removal element being in communication with the conveying unit and the adsorption unit respectively, and being used for removing dust and particulate matter from the exhaust gas by performing a dust removal treatment on the exhaust gas through negative pressure; a first air inlet element, the first air inlet element being disposed on a first side of the dust removal element and being in communication with the conveying unit and the dust removal element, and being configured to convey exhaust gas to the dust removal element; a first gas outlet element, which is disposed on the second side of the dust removal element and is connected to the adsorption unit, and is used to transport the dust-removed exhaust gas to the adsorption unit; and / or The adsorption unit comprises: a first housing element, the first housing element being disposed on a side of the dust removal unit; a second air inlet element, the second air inlet element being disposed on the first side of the first housing element and being in communication with the dust removal unit, and being configured to transport the exhaust gas after dust removal to the first housing element; a plurality of adsorption elements, the plurality of adsorption elements being distributed on the first housing element and configured to perform multi-stage adsorption treatment on the exhaust gas after the dust removal treatment to remove odor, organic gas, and harmful gas from the exhaust gas; a second gas outlet element, which is disposed on the second side of the first housing element and is in communication with the catalytic unit, and is used to deliver the exhaust gas subjected to multi-stage adsorption treatment to the catalytic unit; and / or The catalytic unit comprises: a second housing element, the second housing element being disposed on a side of the adsorption unit; a third air intake component, the third air intake component being disposed at the bottom end of the second shell component and being in communication with the adsorption unit, and being configured to transport the exhaust gas after the multi-stage adsorption treatment to the second shell component; a heating element, the heating element being disposed in the second housing element and being used for heating the exhaust gas; a heat storage element, the heat storage element being disposed downstream of the heating element and being used to store residual heat of the heating element; a catalytic element, the catalytic element being disposed downstream of the heat storage element and configured to catalytically react with the heated gas to generate harmless products; a third gas outlet element, the third gas outlet element being disposed at the top of the second housing element and being in communication with the spray unit, for delivering harmless products to the spray unit; and / or The spray unit comprises: a third housing element, the third housing element being disposed on a side of the catalytic unit; a fourth air intake element, the fourth air intake element being disposed on a side of the third housing element and being in communication with the catalytic unit, and being configured to transport harmless products to the third housing element; a spraying element, the spraying element being disposed on the third housing element and being used for spraying harmless products; a liquid discharge element, the liquid discharge element being arranged at the bottom end of the third shell element and being used for discharging the spraying liquid of the third shell element; a fourth gas outlet element, the fourth gas outlet element being disposed at the top end of the third shell element and being used to deliver harmless products after spraying treatment; a liquid delivery element, the liquid delivery element being in communication with the spraying element and being used for delivering spraying liquid to the spraying element; A liquid storage element is connected to the liquid delivery element and is used to deliver spraying liquid to the liquid delivery element.

3. The exhaust gas treatment device according to claim 2, characterized in that: The collecting unit further comprises: A first filter element, which is disposed on the collecting element and is used to filter the exhaust gas to filter out large-size particulate matter; and / or The conveying unit further includes: a plurality of first valve elements, each of which is provided at a corresponding first branch conveying element and is used to control the opening and closing of the first branch conveying element; and / or The conveying unit further includes: a second valve element, the second valve element being provided on the first main conveying element and being used for controlling the opening and closing of the main conveying element; and / or The dust removal unit further includes: a first air guiding element, which is disposed at the second end of the first air outlet element and is in communication with the adsorption unit, and is used to guide the flow direction and distribution of the gas; and / or The dust removal unit further includes: a third valve element, the third valve element being provided at the first gas outlet element and being used to control the flow rate of the gas in the first gas outlet element; and / or The dust removal unit further includes: a second filter element, which is disposed on the first air outlet element and is used to filter the exhaust gas from the first air outlet element to remove impurities; and / or The adsorption unit further comprises: a fourth valve element, the fourth valve element being disposed at the second gas outlet element and being used to control the flow rate of the gas in the second gas outlet element; and / or The catalytic unit further comprises: a heat-insulating element, the heat-insulating element being arranged in the second housing element and being used for heat-insulating the exhaust gas; and / or The catalytic unit further comprises: a temperature monitoring element, the temperature monitoring element being disposed in the second housing element and downstream of the heating element, for monitoring the temperature of the exhaust gas; and / or The catalytic unit further comprises: a second air guiding element, which is disposed at the top of the third air inlet element and is used to guide the flow and distribution of the gas; and / or The catalytic unit further comprises: a fifth valve element, the fifth valve element being disposed at the third gas outlet element and being used to control the flow rate of the gas in the third gas outlet element; and / or The catalytic unit further comprises: a second circulation element, the second circulation element being in communication with the third air inlet element and the third air outlet element, respectively, for circulating the exhaust gas for multiple catalysis; and / or The spray unit also includes: a packing element, the packing element being arranged in the third housing element and being located between the fourth air inlet element and the spray element, for increasing the contact area between the spraying liquid and the harmless product; and / or The spray unit also includes: a sixth valve element, the sixth valve element being provided at the fourth gas outlet element and being used to control the opening and closing of the fourth gas outlet element; and / or The spray unit also includes: a seventh valve element, the seventh valve element being provided on the liquid delivery element and being used for controlling the opening and closing of the liquid delivery element; and / or The spray unit also includes: The first circulation element is connected to the liquid discharge element and the liquid storage element respectively, and is used for circulating the spraying liquid.

4. The exhaust gas treatment device according to claim 3, characterized in that: The catalytic unit further comprises: A ninth valve element is provided on the first circulation element and is used to control the opening and closing of the first circulation element.

5. The exhaust gas treatment device according to claim 3, characterized in that: The spray unit also includes: An eighth valve element is provided on the second circulation element and is used to control the opening and closing of the second circulation element.

6. The exhaust gas treatment device according to any one of claims 1 to 5, characterized in that: Also includes: an air filling unit, the air filling unit being in communication with the delivery unit and configured to deliver a safety gas to the delivery unit to dilute the concentration of cyclopentane in the delivery unit or the environment; and / or a first monitoring unit, the first monitoring unit being provided in the catalytic unit and being configured to monitor the concentration of cyclopentane in the catalytic unit; and / or a plurality of second monitoring units, the plurality of second monitoring units being distributed in the delivery unit and configured to monitor the concentration of cyclopentane in the delivery unit; and / or The third monitoring unit is provided at the output end of the spray unit and is used to monitor the concentration of cyclopentane output by the spray unit.

7. The exhaust gas treatment device according to claim 6, characterized in that: The inflation unit comprises: A gas supply element, the gas supply element is used to store safety gas; a second main conveying element, the second main conveying element being in communication with the gas supply element and configured to output safety gas; A plurality of second branch conveying elements, the first ends of which are respectively connected to the second main conveying elements, and the second ends of which are respectively connected to the plurality of conveying units, are used to convey safety gas to the conveying units.

8. The exhaust gas treatment device according to claim 7, characterized in that: The inflation unit further comprises: a tenth valve element, the tenth valve element being provided on the second main conveying element and being used for controlling the opening and closing of the second main conveying element; and / or A plurality of eleventh valve elements are respectively arranged on corresponding second branch conveying elements, and are used to control the opening and closing of the second branch conveying elements.

9. The exhaust gas treatment device according to claim 8, characterized in that: The inflation unit further comprises: A one-way element is provided on the second main conveying element and is located upstream of the tenth valve element, and is used to allow the safety gas to flow in one direction.

10. An exhaust gas treatment system for a waste refrigerator dismantling line, characterized in that: include: The exhaust gas treatment device according to any one of claims 1 to 9; a driving device, the driving device being connected to the exhaust gas treatment device and being used to drive the exhaust gas treatment device to collect the exhaust gas and drive the flow of the exhaust gas; A control device is connected to the exhaust gas treatment device and is used to control the working state of the exhaust gas treatment device and set the working parameters of the exhaust gas treatment device.

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