Waste gas purification device for molecular sieve processing process

Abstract

The utility model discloses a waste gas purification device for molecular sieve processing, which comprises a purification box, a combustion box and a water storage tank, a first cooling cavity, a second cooling cavity, a first filter cavity and a second filter cavity are arranged in the purification box, a first gas inlet at the upper end of the first cooling cavity is communicated with a gas outlet of the combustion box, and a second gas inlet at the lower end of the combustion box is communicated with a gas outlet of the water storage tank. A first exhaust port is formed in the side wall below the first cooling cavity; a second gas inlet in the upper end of the second cooling cavity is communicated with a waste gas pipe for molecular sieve processing; water distributors are mounted at the tops of the two cooling cavities, and water outlets are formed in the bottoms of the two cooling cavities and communicate with the water storage tank; the first filtering cavity is connected with the second filtering cavity; the second filter cavity is connected with the combustion box; and cylindrical hollow activated carbon filter elements are arranged in the two filter cavities. The device can effectively cool and purify high-temperature tail gas generated by molecular sieve processing, and the activated carbon filter element and the filter membrane are very convenient to replace and maintain.

Description

TECHNICAL FIELD

[0001] The utility model belongs to molecular sieve processing equipment field, concretely relates to a waste gas purification device in molecular sieve processing. BACKGROUND

[0002] A large amount of high-temperature waste gas is generated in the molecular sieve processing, and the waste gas needs to be cooled and then purified by adsorption of activated carbon during the filtration and purification of the high-temperature waste gas. The waste gas purification device disclosed in the existing utility model patent with the authorization announcement No. CN218249257U uses cooling water to cool the waste gas, and then the waste gas is adsorbed by activated carbon and then introduced into a combustion box for ignition. The components such as activated carbon and filter membrane are consumables in the purification process and need to be replaced regularly. However, the replacement and maintenance of the activated carbon and filter membrane in the filter box of the device are very inconvenient, which affects the progress of the purification operation. CONTENT OF THE UTILITY MODEL

[0003] In order to solve the problems in the prior art, the utility model aims to provide a waste gas purification device in the molecular sieve processing, which can effectively cool and purify the high-temperature tail gas generated in the molecular sieve processing, and the replacement and maintenance of the activated carbon filter element and filter membrane are very convenient.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A waste gas purification device for molecular sieve processing, comprising a purification box, a combustion box and a water storage tank, wherein the purification box is provided with a first cooling cavity, a second cooling cavity, a first filter cavity and a second filter cavity from left to right in sequence, the first inlet of the first cooling cavity at the upper end is communicated with the gas outlet of the combustion box, and the first exhaust port is arranged on the side wall below the first cooling cavity; the second inlet of the second cooling cavity at the upper end is communicated with the waste gas pipe of the molecular sieve processing; a water distributor is installed on the top of each of the two cooling cavities, and the two water distributors are connected with a cold water supply system; a drain port is arranged at the bottom of each of the two cooling cavities, and the drain port is communicated with the water storage tank; the bottom of the first filter cavity is communicated with the side surface close to the lower side of the second cooling cavity through a first filter port; the top of the second filter cavity is communicated with the upper end of the first filter cavity through a second filter port; the second exhaust port of the side wall below the second filter cavity is connected with the gas inlet end of the combustion box; an activated carbon filter element with a hollow cylinder is arranged in each of the two filter cavities, and the two activated carbon filter elements are respectively installed at the filter ports corresponding to the filter cavities; a first maintenance opening corresponding to the activated carbon filter element is formed in each of the two filter cavities, and a first sealing plug is arranged at the first maintenance opening.

[0006] Preferably, the side surface close to the lower side of the second cooling cavity is communicated with a first communication cavity, the top of the first communication cavity is communicated with the bottom of the first filter cavity through a first filter port, and a filter membrane is arranged in the first communication cavity.

[0007] Preferably, the top side of the first filtering cavity is communicated with a second communicating cavity, and the bottom of the second communicating cavity is communicated with the top of the second filtering cavity through a second filtering opening.

[0008] Preferably, a sealing butt joint is arranged at each of the first filtering opening and the second filtering opening; one end of the activated carbon filter core is opened, and the other end is closed; the opened end of the activated carbon filter core is inserted into the butt joint.

[0009] Preferably, the first sealing plug and the second sealing plug are threadedly connected at the first maintenance opening.

[0010] Preferably, the first maintenance opening and the filtering opening are oppositely arranged on the two filtering cavities; a spring is arranged on the sealing plug, and the spring is abutted against the activated carbon filter core.

[0011] Preferably, an electric control valve is arranged at the water outlet.

[0012] The present application has the following beneficial effects:

[0013] 1. The route of the flue gas generated in the processing of the molecular sieve in the second cooling cavity and the two filtering cavities is a polyline type, which can prolong the flue gas passing path and improve the adsorption purification effect.

[0014] 2. The present application utilizes the cooperation of the activated carbon filter core and the sealing butt joint, which is more convenient for the quick replacement of the activated carbon consumables and is more convenient to use.

[0015] 3. The spring is abutted against the end surface of the activated carbon filter core away from the opening, and after the first sealing plug is installed in place at the first maintenance opening, the spring is extruded; by utilizing the spring force, the activated carbon filter core can be firmly crimped on the corresponding sealing butt joint, thereby improving the stability of the installation of the activated carbon filter core.

[0016] 4. The sealing plugs installed at the first maintenance opening and the second maintenance opening are screwed at the maintenance openings through the threaded structure; when the activated carbon filter core needs to be replaced, the maintenance opening can be easily opened, so that the maintenance and replacement of the activated carbon filter core are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the present application;

[0018] Figure 2 is Figure 1 is an enlarged view of A in FIG. 4. DETAILED DESCRIPTION

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of application of this utility model.

[0020] like Figures 1-2 As shown, this utility model proposes a waste gas purification device for molecular sieve processing, including a purification chamber 1, a combustion chamber 4, and a water storage tank 5. The purification chamber 1 is vertically arranged from left to right as a first cooling chamber 11, a second cooling chamber 1612, a first filter chamber 14, and a second filter chamber. The upper side wall of the first cooling chamber 11 is provided with a first air inlet 102, which is connected to the air outlet 41 of the combustion chamber 4. The lower side wall of the first cooling chamber 11 is provided with a first exhaust port 101 for discharging the purified exhaust gas.

[0021] The upper side wall of the second cooling chamber 1612 is provided with a second air inlet 103, which is connected to the exhaust gas pipe of the molecular sieve processing. Both cooling chambers are equipped with water distributors 7 at their tops, both of which are connected to a cold water supply system. The water distributors 7 can evenly distribute and spray cooling water from the cold water supply system downwards, thereby effectively cooling the flue gas in the first cooling chamber 11 and the second cooling chamber 1612. Both cooling chambers are provided with drain outlets 107 at their bottoms, which are connected to a water storage tank 5 via connecting pipes. Furthermore, an electric control valve 1071 is installed at the drain outlet 107, controlling the opening and closing of the drain outlet 107 to discharge the cooling water from the two cooling chambers into the water storage tank 5. Specifically, corresponding level valves can be installed in the two cooling chambers. When the water level reaches a predetermined height, the electric control valve 1071 activates, discharging the water from the cooling chamber.

[0022] The second cooling chamber 1612 is connected to the first connecting chamber 13 on the side near the bottom. The top of the first connecting chamber 13 is connected to the bottom of the first filter chamber 14 through the first filter port 104. The first connecting chamber 13 is provided with a filter membrane 3. The filter membrane 3 is a PTFE membrane in the prior art, which can ensure the passage of exhaust gas while preventing the passage of water molecules, thus avoiding affecting the adsorption capacity of the activated carbon filter element 2.

[0023] The top side of the first filter chamber 14 is connected to the second connecting chamber 15. The bottom of the second connecting chamber 15 is connected to the top of the second filter chamber through the second filter port 106. This makes the path of the flue gas generated by the molecular sieve processing in the second cooling chamber 1612 and the two filter chambers zigzag, which can extend the flue gas passage path and improve the adsorption and purification effect.

[0024] The second exhaust port 108 of the side wall below the second filter cavity is connected with the gas inlet end of the combustion box 4. The combustion box 4 adopts a commonly used combustion and purification box 1 on the market, and the combustion and purification tail gas is the prior art. The two filter cavities are each provided with a hollow cylindrical activated carbon filter element 2, and the two activated carbon filter elements 2 are respectively installed at the filter ports of the filter cavities. Specifically, the first filter port 104 and the second filter port 106 are each provided with a sealing butt joint 6; the activated carbon filter elements 2 in the two filter cavities are each provided with an open end and a closed end, and the open end of the activated carbon filter element 2 is inserted into the corresponding sealing butt joint 6. The cylindrical activated carbon filter element 2 adopts an air purification filter element 2 commonly used in the prior art, and the activated carbon filter element 2 and the sealing butt joint 6 are connected in the form of a butt joint commonly used in the prior art.

[0025] The present application utilizes the cooperation of the activated carbon filter element 2 and the sealing butt joint 6, so that the activated carbon consumables can be quickly replaced, and the use is more convenient.

[0026] The first maintenance opening 105 corresponding to the activated carbon filter element 2 is formed on the two filter cavities, and the first sealing plug 1051 is arranged at the first maintenance opening 105. The first maintenance opening 105 on the two filter cavities is arranged opposite to the filter port; the sealing plug is provided with a spring 1052, the spring 1052 abuts against the end face of the activated carbon filter element 2 away from the opening, and after the first sealing plug 1051 is installed in place at the first maintenance opening 105, the spring 1052 is pressed, and the activated carbon filter element 2 is tightly pressed on the corresponding sealing butt joint 6 by the elastic force of the spring 1052, so that the stability of the installation of the activated carbon filter element 2 is improved.

[0027] The second maintenance opening 104 is arranged on the side wall of the first communication cavity 13 close to the filter membrane 3, and the second sealing plug 1041 is arranged at the second maintenance opening 104. The first sealing plug 1051 and the second sealing plug 1041 are both screw-connected at the first maintenance opening 105. The sealing plugs installed at the first maintenance opening 105 and the second maintenance opening 104 are screwed at the maintenance opening through the threaded structure, so that when the activated carbon filter element 2 needs to be replaced, the maintenance opening can be easily opened, and the maintenance and replacement of the activated carbon filter element 2 are more convenient.

[0028] When the present application is used, the flue gas generated during the processing of the molecular sieve is introduced into the second cooling cavity 1612 through the second gas inlet 103, the cooling water is sprayed out through the water distributor 7 to cool, the cooled flue gas is filtered by the filter membrane 3 to remove water molecules, then enters the first filter cavity 14 from below through the first filter port 104, is filtered by the activated carbon filter element 2 in the first filter cavity 14, then enters the second filter cavity through the second filter port 106, is filtered again by the activated carbon filter element 2, and then is sent into the combustion box 4 to burn and purify the tail gas. The tail gas after combustion is sent into the first cooling cavity 11 through the first gas inlet 102 to cool, and then is discharged through the first exhaust port 101.

[0029] Obviously, the above-described embodiments are only some embodiments but not all the embodiments of the present application, the preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be implemented in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent replacements to some technical features therein. Any equivalent structure made by using the content of the specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A waste gas purification device for molecular sieve processing, comprising a purification chamber, a combustion chamber, and a water storage tank, characterized in that: The purification chamber is provided with a first cooling chamber, a second cooling chamber, a first filter chamber, and a second filter chamber from left to right. The first air inlet at the upper end of the first cooling chamber is connected to the air outlet of the combustion chamber, and the lower side wall of the first cooling chamber is provided with a first exhaust port. The second air inlet at the upper end of the second cooling chamber is connected to the waste gas pipe of the molecular sieve processing. Water distributors are installed at the top of both cooling chambers and are connected to the cold water supply system. Drainage outlets are provided at the bottom of both cooling chambers and are connected to the water storage tank. The bottom of the first filter chamber is connected to the lower side of the second cooling chamber through a first filter port. The top of the second filter chamber is connected to the upper end of the first filter chamber through a second filter port. The second exhaust port on the lower side wall of the second filter chamber is connected to the air inlet of the combustion chamber; both filter chambers are equipped with cylindrical hollow activated carbon filter elements, and the two activated carbon filter elements are respectively installed at the corresponding filter ports of the filter chambers; both filter chambers are provided with a first inspection port corresponding to the activated carbon filter element, and a first sealing plug is provided at the first inspection port.

2. The waste gas purification device for molecular sieve processing according to claim 1, characterized in that: The second cooling chamber is connected to the first connecting chamber on its lower side. The top of the first connecting chamber is connected to the bottom of the first filtering chamber through the first filter port. A filter membrane is provided inside the first connecting chamber.

3. The waste gas purification device for molecular sieve processing according to claim 1, characterized in that: The top side of the first filter chamber is connected to the second connecting chamber, and the bottom of the second connecting chamber is connected to the top of the second filter chamber through the second filter port.

4. The waste gas purification device for molecular sieve processing according to claim 1, characterized in that: Both the first and second filter ports are equipped with sealing connectors; one end of the activated carbon filter element is open and the other end is closed, and the open end of the activated carbon filter element is inserted into the corresponding sealing connector.

5. The waste gas purification device for molecular sieve processing according to claim 2, characterized in that: A second inspection port is provided on the side wall of the first connecting cavity near the filter membrane, and a second sealing plug is provided at the second inspection port.

6. The waste gas purification device for molecular sieve processing according to claim 1, characterized in that: Both the first sealing plug and the second sealing plug are threadedly connected to the first inspection port.

7. The waste gas purification device for molecular sieve processing according to claim 5, characterized in that: The first inspection port on each of the two filter chambers is positioned opposite to the filter port; a spring is installed on the sealing plug, and the spring abuts against the activated carbon filter element.

8. The waste gas purification device for molecular sieve processing according to claim 1, characterized in that: An electrically controlled valve is installed at the drain outlet.

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