Multifunctional filtering device for bismaleimide production

Abstract

The utility model discloses a multifunctional filtering device for bismaleimide production, which relates to the technical field of chemical equipment and comprises a sleeve, the sleeve comprises a connecting air inlet pipe, a fixing block and an adjusting block, the fixing block is fixedly arranged on the connecting air inlet pipe, the adjusting block is arranged on the fixing block in a sliding manner, and the adjusting block is arranged on the connecting air inlet pipe. A pair of guide grooves are symmetrically formed in the fixing block, limiting grooves are formed in the guide grooves, a pair of guide strips are symmetrically and fixedly arranged on the adjusting block, the guide strips are arranged in the guide grooves in a sliding mode, limiting clamping blocks are fixedly arranged below the guide strips, and the limiting clamping blocks are arranged in the limiting grooves in a sliding mode. A plurality of brackets are fixedly arranged in the sleeve, and filtering pieces are arranged on the brackets, so that the problems that in the prior art, a filtering adsorption net is fixedly arranged in the middle of a connecting piece, the filtering adsorption net is inconvenient to replace and overhaul, and the working efficiency of the filtering assembly is influenced are solved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically a multifunctional filtration device for the production of bismaleimide. Background Technology

[0002] Existing bismaleimide production equipment typically discharges the gas generated in the reactor directly into the external environment during evaporation and exhaust. This gas contains some toxic and harmful gases or fine particles, which can easily cause environmental pollution and endanger the health of relevant workers.

[0003] Chinese utility model patent application CN220361181U discloses a bismaleimide production reactor: it includes a moving mechanism, a reaction mechanism is fixedly connected to the middle of the upper surface of the moving mechanism, and a reactor lid mechanism is placed on the upper surface of the reaction mechanism. A filter mechanism is threadedly connected to one side of the upper surface of the reactor lid mechanism, and the filter mechanism includes a connector and a filter adsorption screen, with the filter adsorption screen fixedly connected between the middle of the upper surface of the connector.

[0004] However, existing technologies still have shortcomings:

[0005] 1. The above filter adsorption screen is fixed in the middle of the connector, which makes it inconvenient to replace and repair it, thus affecting the working efficiency of the filter assembly.

[0006] 2. Single-layer filter structures are less effective at adsorbing and filtering harmful gases and dust such as phthalic anhydride and hydrogen chloride generated during the production of bismaleimide, which affects the quality of the exhaust gas and thus the air quality and the health of the workers. Utility Model Content

[0007] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a multifunctional filtration device for bismaleimide production, which solves the problem in the prior art where the filter adsorption screen is fixedly installed in the middle of the connecting part, making it inconvenient to replace and maintain, thus affecting the working efficiency of the filtration assembly.

[0008] To achieve the above objectives, this utility model proposes a multifunctional filtration device for bismaleimide production, comprising a sleeve, the sleeve including a connecting air inlet pipe, a fixing block, and an adjusting block. The fixing block is fixedly mounted on the connecting air inlet pipe, and the adjusting block is slidably mounted on the fixing block. A pair of guide grooves are symmetrically formed on the fixing block, and a limiting groove is formed within the guide groove. A pair of guide strips are symmetrically fixedly mounted on the adjusting block, and the guide strips are slidably mounted within the guide groove. A limiting block is fixedly mounted below the guide strip, and the limiting block is slidably mounted within the limiting groove. Multiple supports are fixedly mounted inside the sleeve, and filter elements are mounted on the supports.

[0009] As a further embodiment of this utility model: a filter cap is snapped onto the sleeve.

[0010] As a further embodiment of this utility model: the upper and lower ends of the limiting groove are provided with a card block structure that matches the limiting card block.

[0011] As a further embodiment of this utility model: an arc-shaped locking block is fixedly provided on the fixing block and the adjusting block, and a first locking groove is provided below the filter cover, the first locking groove engaging with the arc-shaped locking block.

[0012] As a further embodiment of this utility model, an explosion-proof flame arrester is fixedly installed inside the connecting air intake pipe.

[0013] As a further embodiment of this utility model: the number of brackets is three, and the first filter element, the second filter element, and the third filter element are respectively snapped into the brackets from bottom to top.

[0014] As a further embodiment of this utility model, a second slot is provided inside the bracket.

[0015] As a further embodiment of this utility model: the first filter element is a ceramic filter screen.

[0016] As a further embodiment of this invention: the second filter element is an activated carbon filter.

[0017] As a further embodiment of this invention: the third filter element is a catalytic decomposition module.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. A sleeve is provided, which contains multiple filter elements. The sleeve includes a connecting air inlet pipe, a fixing block, and an adjusting block. The fixing block is fixedly mounted on the connecting air inlet pipe, and the adjusting block is slidably mounted on the fixing block. Pushing the adjusting block downwards until the limiting block engages with the lower end of the limiting groove closes the sleeve. Pushing the adjusting block upwards until the limiting block engages with the upper end of the limiting groove opens the sleeve. The open state facilitates the maintenance and replacement of the filter elements inside the sleeve. At the same time, the above configuration facilitates the overall installation of the device.

[0020] 2. An explosion-proof flame arrester is fixedly installed inside the connecting air inlet pipe of the sleeve. The explosion-proof flame arrester serves as the first line of defense for the air inlet pipe, intercepting any explosive gases that may leak from the reactor, and effectively protecting the filter components inside the sleeve.

[0021] 3. By fixing and installing arc-shaped locking blocks on the fixed block and adjusting block, and opening a first locking groove under the filter cover, the first locking groove is engaged with the arc-shaped locking block when the sleeve is closed, thereby realizing the installation of the sleeve and filter cover. This effectively prevents external particles from entering the filter element and affecting the filtration effect, while also increasing the stability of the sleeve. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a partial structural schematic diagram of the present invention;

[0024] Figure 3 This is a cross-sectional and exploded view of the combined structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of this utility model after the filter element has been removed;

[0026] Figure 5 This utility model Figure 4 Enlarged view of point A.

[0027] In the diagram: 1. Sleeve; 2. Filter cover; 3. Connecting air inlet pipe; 4. Fixing block; 5. Adjusting block; 6. Bracket; 7. Explosion-proof flame arrester; 8. Third filter element; 9. Second filter element; 10. First filter element; 11. Arc-shaped locking block; 12. First locking groove; 13. Second locking groove; 14. Guide strip; 15. Limiting locking block; 16. Limiting groove; 17. Guide groove. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] like Figure 1-5As shown, a multifunctional filtration device for bismaleimide production includes a sleeve 1 and a filter cover 2. The filter cover 2 is snapped onto the sleeve 1 to prevent external particles from clogging the filter element inside the sleeve 1. The sleeve 1 includes a connecting air inlet pipe 3, a fixing block 4, and an adjusting block 5. The fixing block 4 is fixedly mounted on the connecting air inlet pipe 3, and the adjusting block 5 is slidably mounted on the fixing block 4. Specifically, a pair of guide grooves 17 are symmetrically opened on the fixing block 4, and a limit groove 16 is opened in the guide groove 17. A pair of guide strips 14 are symmetrically fixedly mounted on the adjusting block 5, and the guide strips 14 are slidably mounted in the guide grooves 17. A limit block 15 is fixedly mounted below the guide strips 14. Block 15 is slidably disposed in the limiting groove 16. The upper and lower ends of the limiting groove 16 are provided with locking block structures that match the limiting block 15. Pushing the adjusting block 5 downwards until the limiting block 15 engages with the lower end of the limiting groove 16 closes the sleeve 1. Pushing the adjusting block 5 upwards until the limiting block 15 engages with the upper end of the limiting groove 16 opens the sleeve 1. The open state facilitates the maintenance and replacement of the filter element inside the sleeve 1. Arc-shaped locking blocks 11 are fixedly disposed on the fixing block 4 and the adjusting block 5. A first locking groove 12 is provided below the filter cover 2. When the sleeve 1 is closed, the first locking groove 12 engages with the arc-shaped locking block 11 to install the sleeve 1 and the filter cover 2.

[0030] An explosion-proof flame arrester 7 is fixedly installed inside the intake pipe 3. The explosion-proof flame arrester 7 serves as the first line of defense for the intake pipe, intercepting any explosive gases that may leak from the reactor. It also effectively protects the structure inside the sleeve 1. Multiple supports 6 are fixedly installed inside the sleeve 1, and filter elements are mounted on the supports 6. The supports 6 are fixedly connected to the fixing block 4. In this embodiment, there are three supports 6. From bottom to top, the supports 6 respectively hold a first filter element 10, a second filter element 9, and a third filter element 8. A second slot 13 is provided inside the support 6 to engage the filter elements. In this embodiment, the first filter element 10 is a ceramic filter screen used for preliminary filtration of particulate impurities; the second filter element 9 is an activated carbon filter screen used to adsorb volatile organic compounds and acidic gases; and the third filter element 8 is a catalytic decomposition module that, under ultraviolet light irradiation... TiO2 generates strong oxidizing free radicals, which oxidize residual pollutants such as phthalic anhydride, hydrogen chloride, and ammonia in the waste gas into harmless substances such as carbon dioxide and water. The third filter element 8, the second filter element 9, and the first filter element 10 are existing technologies. In this embodiment, the third filter element 8 adopts the photocatalytic waste gas purifier of Keruiste. During installation, the explosion-proof flame arrester 7 is fixedly connected to the gas outlet pipeline to realize the fixed connection between the whole device and the reaction vessel. The harmful gases and particulate impurities generated during the production and processing of bismaleimide are discharged into the outside air after being filtered by the third filter element 8, the second filter element 9, and the first filter element 10. When it is necessary to repair or replace the filter element, first remove the filter cover 2, and then slide the adjusting block 5 upward until the limit block 15 is engaged with the upper end of the limit groove 16. Then, any filter element can be replaced or repaired.

[0031] Working principle:

[0032] During installation, the explosion-proof flame arrester 7 is fixedly connected to the outlet pipeline to achieve a fixed connection between the entire device and the reactor. Harmful gases and particulate impurities generated during the production and processing of bismaleimide are discharged into the outside air after being filtered by the third filter element 8, the second filter element 9, and the first filter element 10. When it is necessary to repair or replace the filter element, first remove the filter cover 2, then slide the adjusting block 5 upward until the limit block 15 is engaged with the upper end of the limit groove 16. Then, any filter element can be replaced or repaired. After completion, push the adjusting block 5 downward until the limit block 15 is engaged with the lower end of the limit groove 16 to close the sleeve 1.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A multifunctional filter device for bismaleimide production, characterized by, The utility model provides a filter sleeve, including sleeve (1), the sleeve (1) includes the air intake pipe (3) of link, fixed block (4), adjusting block (5), the fixed block (4) is fixedly arranged on the air intake pipe (3), the adjusting block (5) is slidably arranged on the fixed block (4), a pair of guide grooves (17) are symmetrically set up on the fixed block (4), the guide groove (17) is set up with the limit slot (16) in, a pair of guide strips (14) are symmetrically fixedly arranged on the adjusting block (5), the guide strip (14) is slidably arranged in the guide groove (17), the limit stopper (15) is fixedly arranged below the guide strip (14), the limit stopper (15) is slidably arranged in the limit slot (16), a plurality of supports (6) are fixedly arranged in the sleeve (1), and the support (6) is provided with filter element.

2. The multifunctional filtering device for bismaleimide production according to claim 1, characterized in that, The sleeve (1) is clamped with filter cover (2).

3. The multifunctional filtering device for bismaleimide production according to claim 1, characterized in that, The limit slot (16) is provided with the clamping block structure matched with the limit stopper (15) on the upper and lower ends.

4. The multifunctional filter device for bismaleimide production according to claim 2, characterized by, The fixed block (4), adjusting block (5) are fixedly provided with arc-shaped clamping block (11), the filter cover (2) is provided with first clamping groove (12) below, and the first clamping groove (12) is clamped with the arc-shaped clamping block (11).

5. The multifunctional filter device for bismaleimide production according to claim 1, characterized in that, The air intake pipe (3) is fixedly provided with explosion-proof fire arrestor (7) in.

6. The multifunctional filtering device for bismaleimide production according to claim 1, characterized in that, The number of the support (6) is three, and the first filter element (10), second filter element (9) and third filter element (8) are clamped in the support (6) from bottom to top respectively.

7. The multifunctional filter device for bismaleimide production according to claim 6, characterized by, The support (6) is provided with second clamping groove (13) in.

8. The multifunctional filter device for bismaleimide production according to claim 6, characterized by, The first filter element (10) is ceramic filter screen.

9. The multifunctional filter device for bismaleimide production according to claim 6, characterized by, The second filter element (9) is activated carbon filter screen.

10. The multifunctional filtering device for bismaleimide production according to claim 6, characterized in that, The third filter element (8) is catalytic decomposition module.

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