Reaction kettle for producing modified isocyanate

Abstract

The utility model belongs to the technical field of modified isocyanate production, and particularly relates to a reaction kettle for modified isocyanate production, which comprises a shell, the shell is sealed through a sealing device, the sealing device is connected with a filtering device, the sealing device is mounted on the shell through an adjusting device, and the filtering device is connected with the adjusting device. And the filtering device is arranged on the sealing device. According to the adjusting device, the sealing device is installed on the shell, so that the sealing device can seal the shell, the filtering device is installed on the sealing device, the filtering device is located outside the shell, and maintenance of the filtering device and replacement of parts are facilitated.

Description

Technical Field

[0001] The utility model relates to a reaction kettle for producing modified isocyanate, belonging to the technical field of modified isocyanate production. Background Art

[0002] A large amount of harmful gases are generated during the production of modified isocyanate. These harmful gases are easily discharged into the air, causing environmental pollution and endangering human health. Therefore, these gases need to be treated before being discharged.

[0003] In a Chinese utility model with the publication number CN218012719U, a reaction kettle for producing polyurethane waterproof coating is disclosed. This reaction kettle filters harmful gases by means of a filter screen, a filter plate and an activated carbon plate. However, after the activated carbon plate is used for a period of time, the filtering effect decreases. At this time, a new activated carbon plate needs to be replaced. The existing activated carbon plate is placed in the inner cavity of the purification box. When replacing it, the outer shell of the purification box needs to be disassembled first, which to a certain extent prolongs the time required to replace the activated carbon plate. In addition, the structure of the existing reaction kettle for producing isocyanate is not convenient for cleaning the inner wall of the reaction kettle after production. Summary of the Utility Model

[0004] The utility model aims at the above technical problems of the prior art and provides a reaction kettle for producing modified isocyanate.

[0005] The technical solution for the utility model to solve the above technical problems is as follows:

[0006] A reaction kettle for producing modified isocyanate, comprising a shell, the shell is sealed by a sealing device, the sealing device is connected to a filtering device, the sealing device is installed on the shell through an adjusting device, and the filtering device is arranged on the sealing device.

[0007] The beneficial effect of the utility model lies in that: the utility model installs the sealing device on the shell through the adjusting device, so that the sealing device can seal the shell, and installs the filtering device on the sealing device. The filtering device is located outside the shell, which is convenient for maintaining the filtering device and replacing components.

[0008] On the basis of the above technical solution, the utility model can also make the following improvements:

[0009] Furthermore, the adjusting device includes a top plate, an adjusting plate, and a first supporting plate and a second supporting plate symmetrically arranged outside the housing. An adjusting motor is provided on the first supporting plate, and the output shaft of the adjusting motor is connected to a driving threaded rod. The end of the driving threaded rod is rotatably installed on the top plate. A guiding rod is provided on the second supporting plate, and the end of the guiding rod is installed on the top plate. The adjusting plate is movably installed between the driving threaded rod and the guiding rod, and the sealing device is installed on the adjusting plate.

[0010] Furthermore, a lead screw nut pair is threadedly connected to the driving threaded rod, and a guiding shaft sleeve is slidably arranged on the guiding rod. The two ends of the adjusting plate are respectively installed on the lead screw nut pair and the guiding shaft sleeve.

[0011] The beneficial effects of adopting the above further technical solution are as follows: The rotation of the output shaft of the adjusting motor drives the rotation of the driving threaded rod, thereby driving the movement of the lead screw nut pair on the driving threaded rod, and further driving the movement of the adjusting plate. The movement of the adjusting plate can drive the sealing device to seal and connect the housing, which is convenient for cleaning the inner wall of the housing after production.

[0012] Furthermore, the sealing device includes a sealing cover plate, which is fixedly installed under the adjusting plate. A feed pipe is provided on the sealing cover plate, and an electromagnetic valve is provided on the feed pipe.

[0013] The beneficial effects of adopting the above further technical solution are as follows: The movement of the adjusting plate drives the sealing cover plate to seal and connect the housing. Raw materials are added into the housing through the feed pipe. By controlling the lifting of the sealing cover plate, it is convenient to clean the inner wall of the housing after production, greatly improving the cleanliness of the inner wall of the housing.

[0014] Furthermore, the filtering device includes a filtering box installed on the sealing cover plate. An activated carbon filter plate is inserted into the filtering box. A plurality of air outlet holes are opened on one outer wall of the filtering box, and the other outer wall of the filtering box is connected to the sealing cover plate through an air delivery pipe.

[0015] The beneficial effects of adopting the above further technical solution are as follows: Harmful gases generated during the production process enter the filtering box through the air delivery pipe, and then the harmful gases are filtered by the activated carbon filter plate to avoid the emission of harmful gases into the air.

[0016] Furthermore, a sealing installation groove is provided on one inner wall of the filtering box, and a sealing slot is provided on the other inner wall of the filtering box. One end of the activated carbon filter plate is inserted into the sealing installation groove, and the other end of the activated carbon filter plate passes through the sealing slot and is connected to a sealing connection block.

[0017] Furthermore, the sealing connection blocks are respectively arranged on the upper and lower sides of the activated carbon filter plate. Sealing bolts are provided on the sealing connection blocks, and the sealing bolts pass through the sealing connection blocks and are threadedly connected to the filter box.

[0018] The beneficial effects of adopting the above further technical solution are as follows: One end of the activated carbon filter plate is installed through the sealing installation groove to ensure stable installation. The other end of the activated carbon filter plate is installed through the sealing connection block. By loosening the sealing bolts, the activated carbon filter plate can be pulled out, thus facilitating the replacement of the activated carbon filter plate without disassembling the outer shell of the filter box, greatly improving the replacement efficiency.

[0019] Furthermore, it further includes a driving device. The driving device includes a driving motor arranged on the adjusting plate, and the output shaft of the driving motor extends into the shell and is connected with a stirring shaft.

[0020] Furthermore, a connecting shaft sleeve is provided at the end of the output shaft of the driving motor. The stirring shaft is inserted into the connecting shaft sleeve and is fixedly connected to the connecting shaft sleeve through connecting bolts and connecting nuts. Multiple stirring rods are provided on the stirring shaft.

[0021] The beneficial effects of adopting the above further technical solution are as follows: Through the threaded connection of the connecting bolts and connecting nuts, the stirring shaft can be replaced before production according to the working conditions, so that it can be adapted to the working requirements. Then, through the rotation of the driving motor, the rotation of the stirring rods is driven, and thus the stirring reaction of the modified isocyanate is realized.

[0022] Furthermore, the adjusting motor is a reversible motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is Figure 1 an enlarged view of part A of

[0025] Figure 3 is Figure 1 an enlarged view of part B of

[0026] Figure 4 is a schematic diagram of the overall structure of another angle of the present invention;

[0027] Figure 5 is a cross-sectional view of the internal structure of the filter box;

[0028] Figure 6 is Figure 5 an enlarged view of part C of

[0029] The reference numerals are recorded as follows: 1. bottom plate; 2. housing; 3. adjusting device; 301. first supporting plate; 302. second supporting plate; 303. adjusting motor; 304. driving threaded rod; 305. top plate; 306. lead screw nut pair; 307. guide rod; 308. guide shaft sleeve; 309. adjusting plate; 4. sealing device; 401. sealing cover plate; 402. feed pipe; 403. solenoid valve; 5. driving device; 501. driving motor; 502. connecting shaft sleeve; 6. filtering device; 601. filtering box; 602. air outlet; 603. sealing installation groove; 604. sealing gasket; 605. activated carbon filter plate; 606. sealing connection block; 607. sealing bolt; 608. gas transmission pipe; 701. stirring shaft; 702. connecting bolt; 703. connecting nut; 704. stirring rod. Detailed implementation manners

[0030] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0031] See Figures 1-6 , a reaction kettle for the production of modified isocyanate, comprising a bottom plate 1 and a housing 2. The housing 2 is installed on the bottom plate 1. The housing 2 is sealed by a sealing device 4. The sealing device 4 is connected to a filtering device 6. The sealing device 4 is installed on the housing 2 through an adjusting device 3. The filtering device 6 is arranged on the sealing device 4.

[0032] The adjusting device 3 includes a top plate 305, an adjusting plate 309, and a first supporting plate 301 and a second supporting plate 302 symmetrically arranged outside the housing 2. An adjusting motor 303 is provided on the first supporting plate 301. The adjusting motor 303 is a reversible motor. The output shaft of the adjusting motor 303 is fixedly connected to a driving threaded rod 304. The other end of the driving threaded rod 304 is rotatably installed on the top plate 305. A guide rod 307 is provided on the second supporting plate 302. The other end of the guide rod 307 is installed on the top plate 305. The adjusting plate 309 is movably installed between the driving threaded rod 304 and the guide rod 307. Specifically, a lead screw nut pair 306 is threadedly connected to the driving threaded rod 304. A guide shaft sleeve 308 is slidably arranged on the guide rod 307. The two ends of the adjusting plate 309 are respectively installed on the lead screw nut pair 306 and the guide shaft sleeve 308. The sealing device 4 is installed on the adjusting plate 309.

[0033] The sealing device 4 includes a sealing cover plate 401. The sealing cover plate 401 is fixedly installed under the adjusting plate 309. A feed pipe 402 is provided on the sealing cover plate 401. A solenoid valve 403 is provided on the feed pipe 402.

[0034] The filtering device 6 includes a filter box 601 installed on the sealing cover plate 401. An activated carbon filter plate 605 is inserted in parallel in the filter box 601. As a preferred embodiment of the present invention, at least two activated carbon filter plates 605 are provided. The two ends of the activated carbon filter plate 605 are respectively inserted into the side walls at both ends of the filter box 601. A plurality of air outlet holes 602 are formed on one outer wall of the filter box 601. The other outer wall of the filter box 601 is connected to the sealing cover plate 401 through an air delivery pipe 608.

[0035] A sealing installation groove 603 is provided on the inner wall at one end of the filter box 601, and a sealing slot is provided on the inner wall at the other end of the filter box 601. One end of the activated carbon filter plate 605 is inserted into the sealing installation groove 603. In order to improve the sealing effect of the connection, a sealing gasket 604 is provided in the sealing installation groove 603. The other end of the activated carbon filter plate 605 passes through the sealing slot and is connected to a sealing connection block 606.

[0036] The sealing connection blocks 606 are respectively arranged on the upper and lower sides of the activated carbon filter plate 605. Sealing bolts 607 are provided on the sealing connection blocks 606. The sealing bolts 607 pass through the sealing connection blocks 606 and are threadedly connected to the filter box 601. The activated carbon filter plate 605 is installed in an interference fit between the two upper and lower sealing connection blocks 606 to ensure the installation stability of the activated carbon filter plate 605.

[0037] It further includes a driving device 5. The driving device 5 includes a driving motor 501 arranged on the adjusting plate 309. The output shaft of the driving motor 501 extends into the housing 2 and is connected to a stirring shaft 701.

[0038] A connecting shaft sleeve 502 is provided at the end of the output shaft of the driving motor 501. The stirring shaft 701 is inserted into the connecting shaft sleeve 502 and is fixedly connected to the connecting shaft sleeve 502 through a connecting bolt 702 and a connecting nut 703. A plurality of stirring rods 704 are provided on the stirring shaft 701.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A reactor for producing modified isocyanate, comprising a shell (2), characterized in that: The housing (2) is sealed by a sealing device (4), the sealing device (4) is connected to a filtering device (6), the sealing device (4) is mounted on the housing (2) via an adjusting device (3), and the filtering device (6) is arranged on the sealing device (4).

2. The modified isocyanate production reactor according to claim 1, characterized in that: The adjusting device (3) comprises a top plate (305), an adjusting plate (309), and a first support plate (301) and a second support plate (302) symmetrically arranged outside the shell (2); the first support plate (301) is provided with an adjusting motor (303); the output shaft of the adjusting motor (303) is connected to a driving threaded rod (304); the end of the driving threaded rod (304) is rotatably mounted on the top plate (305); the second support plate (302) is provided with a guide rod (307); the end of the guide rod (307) is mounted on the top plate (305); the adjusting plate (309) is movably mounted between the driving threaded rod (304) and the guide rod (307); and the sealing device (4) is mounted on the adjusting plate (309).

3. The modified isocyanate production reactor according to claim 2, characterized in that: The driving threaded rod (304) is threadedly connected with a lead screw nut pair (306), the guide rod (307) is slidably provided with a guide sleeve (308), and the two ends of the adjustment plate (309) are respectively mounted on the lead screw nut pair (306) and the guide sleeve (308).

4. The reactor for producing modified isocyanate according to claim 3, characterized in that: The sealing device (4) comprises a sealing cover plate (401), wherein the sealing cover plate (401) is fixedly mounted below the adjusting plate (309), a feed pipe (402) is provided on the sealing cover plate (401), and a solenoid valve (403) is provided on the feed pipe (402).

5. The reaction kettle for producing modified isocyanate according to claim 4, characterized in that: The filtering device (6) comprises a filtering box (601) mounted on the sealing cover plate (401), an activated carbon filtering plate (605) being inserted into the filtering box (601), a plurality of air outlet holes (602) being provided on an outer wall on one side of the filtering box (601), and the outer wall on the other side of the filtering box (601) being connected to the sealing cover plate (401) via an air supply pipe (608).

6. The reaction kettle for producing modified isocyanate according to claim 5, characterized in that: A sealing installation groove (603) is provided on the inner wall at one end of the filter box (601), and a sealing insertion slot is provided on the inner wall at the other end of the filter box (601); one end of the activated carbon filter plate (605) is inserted into the sealing installation groove (603), and the other end of the activated carbon filter plate (605) passes through the sealing insertion slot and is connected to the sealing connection block (606).

7. The reaction kettle for producing modified isocyanate according to claim 6, characterized in that: The sealing connection blocks (606) are respectively arranged on the upper and lower sides of the activated carbon filter plate (605), and the sealing connection blocks (606) are provided with sealing bolts (607). The sealing bolts (607) pass through the sealing connection blocks (606) and are threadedly connected to the filter box (601).

8. The reaction kettle for producing modified isocyanate according to claim 7, characterized in that: It also includes a driving device (5), the driving device (5) including a driving motor (501) arranged on the adjusting plate (309), the output shaft of the driving motor (501) extending into the housing (2) and connected to a stirring shaft (701).

9. The reaction kettle for producing modified isocyanate according to claim 8, characterized in that: The output shaft end of the driving motor (501) is provided with a connecting sleeve (502), the stirring shaft (701) is inserted into the connecting sleeve (502) and fixedly connected to the connecting sleeve (502) via a connecting bolt (702) and a connecting nut (703), and a plurality of stirring rods (704) are provided on the stirring shaft (701).

10. The reaction kettle for producing modified isocyanate according to claim 2, characterized in that: The regulating motor (303) is a reversible motor.

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