Distillation equipment for methyltin mercaptide

Abstract

The utility model discloses distillation equipment for methyltin mercaptide, which belongs to the technical field of distillation equipment and comprises a distillation cylinder, a tubular condenser is arranged on one side of the distillation cylinder, a steam heating component is arranged on the surface of the distillation cylinder, and a sealing cover is arranged above the distillation cylinder. A sealing cover is arranged on the distillation barrel, a lifting assembly is arranged at the joint of the distillation barrel and the sealing cover, a film forming device is arranged below the sealing cover, dismounting assemblies are arranged on the two sides of the film forming device, and a scraping plate is arranged at one end of each dismounting assembly. According to the distillation device, the sealing cover can be conveniently opened and closed, the interior of the distillation barrel can be cleaned or maintained, and the distillation device is provided with the dismounting and mounting seat, the square mounting block, the fixing rod, the fixing sliding block and the fixing spring, so that when the scraper is seriously abraded, the scraper can be conveniently dismounted, mounted and replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of distillation equipment, and in particular relates to a distillation equipment for methyltin mercaptan. Background Art

[0002] Methyltin mercaptan has become an important stabilizer in current PVC products due to its excellent light stability and mutual solubility. Its stability, transparency and weather resistance are superior to other stabilizers. The synthesis of methyltin mercaptan mainly consists of two steps. The first step is to synthesize methyltin chloride from methyl chloride and tin. The reaction product is a mixture of methyltin monochloride and methyltin dichloride. The aqueous solution of the mixture reacts with isooctyl thioglycolate and inorganic liquid alkali at appropriate temperature and pressure to produce crude methyltin mercaptan. The water-containing crude methyltin mercaptan is dried and dehydrated under reduced pressure to obtain the finished product.

[0003] Chinese patent application No. 202020321793.8 discloses a distillation device for methyl tin mercaptide, which is combined with a distillation cylinder, a frequency conversion motor, a rotating shaft, a mounting plate, a film forming device, a scraper and a shell-and-tube condenser, etc., and is used to separate the light components and products in the crude methyl tin mercaptide. A methyl tin mercaptide discharge port is provided at the lower end of the distillation cylinder, and the bottom of the shell-and-tube condenser is the discharge port of the light component. The methyl tin mercaptide discharge port is opened at the bottom of the evaporation chamber, which is not only simple in structure, but also can quickly and effectively separate methyl tin mercaptide from the light component, realize continuous production, and perform rectification and drying on the product. It has the advantages of simple structure, easy installation, high distillation efficiency, reduced energy consumption, continuous production, and improved product quality.

[0004] The above-mentioned patent has the following problems: 1. When in use, it is not convenient to open the distillation cylinder to clean the inside or inspect and maintain the internal components; 2. When in use, a scraper is provided to abut against the inner wall of the device, but it is inconvenient to replace the scraper, and the scraper will be severely worn after long-term use, which will affect its use. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a distillation device for methyltin mercaptan, which has the characteristics of being able to conveniently open and close the distillation cylinder, clean the interior or overhaul and maintain the components, and conveniently remove and replace the scraper when the scraper is severely worn.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a distillation device for methyltin mercaptan, comprising a distillation cylinder, a shell-and-tube condenser is arranged on one side of the distillation cylinder, a steam heating component is arranged on the surface of the distillation cylinder, a sealing cover is arranged above the distillation cylinder, a lifting component is arranged at the connection between the distillation cylinder and the sealing cover, a film-forming device is arranged below the sealing cover, disassembly and assembly components are arranged on both sides of the film-forming device, and a scraper is arranged at one end of the disassembly and assembly component.

[0007] Preferably, the lifting assembly includes a lifting screw, a bevel gear 1, a bevel gear 2, a turning handle, a lifting plate and a guide block, wherein a lifting screw is arranged inside the distillation cylinder, one end of the lifting screw is arranged with a bevel gear 1, one side of the bevel gear 1 is meshingly connected with the bevel gear 2, one end of the bevel gear 2 is arranged with a turning handle, the surface of the lifting screw is threadedly connected with the lifting plate, and one side of the lifting plate is arranged with a guide block.

[0008] Preferably, a limit rod is provided on one side above the lifting plate, a limit slider is provided above the limit rod, and the middle of the limit slider is slidably connected to the limit slider.

[0009] Preferably, a support rod is arranged around the surface of the turning handle, and a limiting plug hole cooperating with the limiting rod is opened on one side of the lifting plate.

[0010] Preferably, the disassembly and assembly component includes a disassembly and assembly seat, a square mounting block, a fixing rod, a fixed slider and a fixing spring, wherein disassembly and assembly seats are arranged on both sides of the film forming device, a square mounting block is installed on one side of the disassembly and assembly seat, a fixing rod is arranged above the square mounting block, a fixed slider is arranged on one side of the fixing rod, and a fixing spring is arranged above the fixed slider.

[0011] Preferably, a limiting plate is provided inside one end of the fixing rod, and a fixing hole matching the fixing rod is provided above the square mounting block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model realizes the effect of convenient opening and closing of the distillation cylinder body, cleaning the interior or overhauling and maintaining the components by setting a lifting component. A lifting screw, bevel gear 1, bevel gear 2, a handle, a lifting plate and a guide block are set, so that the sealing cover can be conveniently opened and closed, and the interior of the distillation cylinder body can be cleaned or overhauled. A limit rod, a limit slider and a limit slide rod are set to limit the lifting plate after the lifting plate is raised to prevent it from falling back.

[0014] 2. The utility model provides a disassembly assembly component, so that the scraper can be easily removed and replaced when the scraper is severely worn. A disassembly seat, a square mounting block, a fixing rod, a fixing slide block and a fixing spring are provided, so that when the scraper is severely worn, it can be easily disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the utility model cut from the front view;

[0017] Figure 3 This is a schematic diagram of the structure of the lifting assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the utility model, which is an enlarged view of point A in the main view section;

[0019] Figure 5 It is a structural schematic diagram of the disassembly and assembly components of the utility model.

[0020] In the figure: 1. distillation cylinder; 2. shell and tube condenser; 3. steam heating component; 4. sealing cover; 5. lifting component; 51. lifting screw; 52. bevel gear one; 53. bevel gear two; 54. turning handle; 55. lifting plate; 56. guide block; 551. limit rod; 552. limit slider; 553. limit slider; 6. film forming device; 7. disassembly and assembly component; 71. disassembly and assembly seat; 72. square mounting block; 73. fixing rod; 74. fixing slider; 75. fixing spring; 76. limit plate; 8. scraper. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-5 The utility model provides the following technical solutions: a distillation device for methyltin mercaptide, comprising a distillation cylinder 1, a shell-and-tube condenser 2 is arranged on one side of the distillation cylinder 1, a steam heating component 3 is arranged on the surface of the distillation cylinder 1, a sealing cover 4 is arranged above the distillation cylinder 1, a lifting component 5 is arranged at the connection between the distillation cylinder 1 and the sealing cover 4, a film forming device 6 is arranged below the sealing cover 4, disassembly components 7 are arranged on both sides of the film forming device 6, and a scraper 8 is arranged at one end of the disassembly component 7.

[0024] Specifically, the lifting assembly 5 includes a lifting screw 51, a bevel gear 1 52, a bevel gear 2 53, a turning handle 54, a lifting plate 55 and a guide block 56, wherein the lifting screw 51 is arranged inside the distillation cylinder 1, one end of the lifting screw 51 is arranged with a bevel gear 1 52, one side of the bevel gear 1 52 is meshingly connected with the bevel gear 2 53, one end of the bevel gear 2 53 is arranged with a turning handle 54, the surface of the lifting screw 51 is threadedly connected with the lifting plate 55, and one side of the lifting plate 55 is arranged with a guide block 56.

[0025] By adopting the above technical solution, the handle 54 is rotated, and the handle 54 drives the bevel gear 2 53 to rotate. The rotation of the bevel gear 2 53 drives the bevel gear 1 52 to rotate. The rotation of the bevel gear 1 52 drives the lifting screw 51 to rotate. The rotation of the lifting screw 51, under the action of the guide block 56, drives the lifting plate 55 to rise, thereby opening the sealing cover 4, cleaning the interior of the distillation cylinder 1, or maintaining the internal components. When the device is in use, it is convenient to open and close the sealing cover 4, clean the interior of the distillation cylinder 1, or inspect and maintain the components, thereby improving the practicality of use.

[0026] Specifically, a limit rod 551 is provided on one side above the lifting plate 55 , a limit slider 552 is provided above the limit rod 551 , and the middle of the limit slider 552 is slidably connected to the limit slider 553 .

[0027] By adopting the above technical solution, the limit rod 551 can limit and fix the lifting plate 55 after the lifting plate 55 is lifted to prevent it from falling back. The limit slider 552 and the limit slider 553 cooperate to limit the moving range of the limit rod 551.

[0028] Specifically, a support rod is disposed around the surface of the turning handle 54 , and a limiting plug hole matching the limiting rod 551 is opened on one side of the lifting plate 55 .

[0029] By adopting the above technical solution, the support rod facilitates the rotation of the handle 54, and the limiting plug hole facilitates the insertion of the limiting rod 551, so as to limit and fix the lifting plate 55 to prevent it from falling back.

[0030] When this embodiment is in use: turn the handle 54, the handle 54 drives the bevel gear 2 53 to rotate, the rotation of the bevel gear 2 53 drives the bevel gear 1 52 to rotate, the rotation of the bevel gear 1 52 drives the lifting screw 51 to rotate, the rotation of the lifting screw 51, under the action of the guide block 56, drives the lifting plate 55 to rise, thereby opening the sealing cover 4, and then insert the limiting rod 551 into the limiting hole to fix the lifting plate 55, so that the interior of the distillation cylinder 1 can be cleaned, or the internal components can be maintained, so that the device can easily open and close the sealing cover 4 when in use, clean the interior of the distillation cylinder 1 or inspect and maintain the components, thereby improving the practicality of use.

[0031] Example 2

[0032] The present embodiment is different from the embodiment 1 in that: specifically, the disassembly and assembly component 7 includes a disassembly and assembly seat 71, a square mounting block 72, a fixing rod 73, a fixing slider 74 and a fixing spring 75, wherein the disassembly and assembly seat 71 is provided on both sides of the film forming device 6, a square mounting block 72 is installed on one side of the disassembly and assembly seat 71, a fixing rod 73 is provided above the square mounting block 72, a fixing slider 74 is provided on one side of the fixing rod 73, and a fixing spring 75 is provided above the fixing slider 74.

[0033] By adopting the above technical solution, the fixing rod 73 is pulled, and the fixing rod 73 drives the fixing slider 74 to move and compress the fixing spring 75, so that the fixing rod 73 is disengaged from the fixing hole, and then the limiting plate 76 is pulled to limit the fixing rod 73 to prevent it from rebounding. Then the square mounting block 72 can be removed from one side of the disassembly seat 71 to remove the scraper 8, so that when the device is in use, when the scraper 8 is severely worn, it can be conveniently disassembled and replaced.

[0034] Specifically, a limiting plate 76 is disposed inside one end of the fixing rod 73 , and a fixing hole matching the fixing rod 73 is opened above the square mounting block 72 .

[0035] By adopting the above technical solution, the limiting plate 76 can limit and fix the fixing rod 73 after the fixing rod 73 is pulled out to prevent it from rebounding, and the fixing hole is convenient for the fixing rod 73 to be inserted to fix the square mounting block 72.

[0036] When this embodiment is in use: pull the fixing rod 73, the fixing rod 73 drives the fixing slider 74 to move and compress the fixing spring 75, so that the fixing rod 73 is disengaged from the fixing hole, and then pull the limiting plate 76 to limit the fixing rod 73 to prevent it from rebounding, and then the square mounting block 72 can be removed from one side of the disassembly seat 71 to remove the scraper 8, so that when the device is in use, when the scraper 8 is severely worn, it can be conveniently disassembled and replaced.

[0037] The structure and use principle of the distillation cylinder 1, the steam heating component 3, the film-forming device 6 and the scraper 8 in the utility model have been disclosed in a methyl tin mercaptan distillation device disclosed in Chinese patent application No. 202020321793.8. Its working principle is to heat the distillation cylinder 1 to 150°C-160°C through a steam jacket, start the frequency conversion motor, make the mesh cage composed of the mounting plate and the scraper 8 rotate with the rotating shaft, pass cooling water to the condenser, and start the vacuum system at the same time to evacuate the distillation cylinder 1, maintain the negative pressure state inside the distillation cylinder 1, so that the crude methyl tin mercaptan is fed from the feed port at a certain flow rate, and the crude methyl tin mercaptan is distributed on the film-forming device 6 through the mesh cage scraper 8 of the mounting plate. The light component of the crude methyl tin mercaptan film evaporates rapidly under the action of high temperature in the distillation cylinder 1, and the light component steam is cooled into liquid under the action of the condenser through the water pipe with the vacuum, and discharged through the discharge port. The finished methyl tin mercaptan is discharged from the distillation cylinder 1 through the discharge port.

[0038] The working principle and use process of the utility model: When the utility model is used, the distillation cylinder 1 is heated to 150°C-160°C through the steam heating component 3, the frequency conversion motor is started, the mesh cage composed of the mounting plate and the scraper 8 rotates with the rotating shaft, the condenser is passed with cooling water, and the vacuum system is started at the same time to evacuate the distillation cylinder 1, maintain the negative pressure state inside the distillation cylinder 1, so that the crude methyl tin mercaptan product is fed from the feed port at a certain flow rate, and then the film forming device 6 and the scraper 8 cooperate, and the crude methyl tin mercaptan product film is formed in the distillation cylinder 1. The light component evaporates quickly under the action of the internal high temperature, and the light component steam is cooled into liquid under the action of the shell-and-tube condenser 2 through the water pipe with the vacuum, and discharged through the discharge port. The finished methyl tin mercaptan is discharged from the distillation cylinder 1 through the discharge port. When in use, when it is necessary to clean the inside of the distillation cylinder 1 or maintain the internal parts, the sealing cover 4 can be opened through the lifting component 5. When in use, the scraper 8 can be replaced by the disassembly component 7 when it is seriously worn. When the lifting component 5 is in use, the handle 54 is turned, and the handle 54 drives The bevel gear 2 53 rotates, and the rotation of the bevel gear 2 53 drives the bevel gear 1 52 to rotate. The rotation of the bevel gear 1 52 drives the lifting screw 51 to rotate. The lifting screw 51 rotates, and under the action of the guide block 56, the lifting plate 55 is driven to rise, thereby opening the sealing cover 4, and then the limiting rod 551 is inserted into the limiting plug hole to fix the lifting plate 55, so that the interior of the distillation cylinder 1 can be cleaned, or the internal components can be maintained, so that the device can easily open and close the sealing cover 4 when in use, and the distillation cylinder can be cleaned. The internal cleaning of the body 1 or the inspection and maintenance of the components improves the practicality of use. When the disassembly and assembly component 7 is in use, the fixing rod 73 is pulled, and the fixing rod 73 drives the fixing slider 74 to move and compress the fixing spring 75, so that the fixing rod 73 is disengaged from the fixing hole, and then the limiting plate 76 is pulled to limit the fixing rod 73 to prevent it from rebounding. Then the square mounting block 72 can be removed from one side of the disassembly and assembly seat 71, and the scraper 8 can be removed, so that when the device is in use, when the scraper 8 is severely worn, it can be conveniently disassembled and replaced.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A distillation apparatus for methyltin mercaptide, comprising a distillation cylinder, characterized in that: A shell-and-tube condenser is arranged on one side of the distillation cylinder, a steam heating component is arranged on the surface of the distillation cylinder, a sealing cover is arranged above the distillation cylinder, a lifting component is arranged at the connection between the distillation cylinder and the sealing cover, a film forming device is arranged below the sealing cover, disassembly components are arranged on both sides of the film forming device, and a scraper is arranged at one end of the disassembly component; The lifting assembly includes a lifting screw, a bevel gear 1, a bevel gear 2, a turning handle, a lifting plate and a guide block, wherein a lifting screw is arranged inside the distillation cylinder, one end of the lifting screw is arranged with a bevel gear 1, one side of the bevel gear 1 is meshedly connected with a bevel gear 2, one end of the bevel gear 2 is arranged with a turning handle, the surface of the lifting screw is threadedly connected with the lifting plate, and one side of the lifting plate is arranged with a guide block; The disassembly and assembly component includes a disassembly and assembly seat, a square mounting block, a fixing rod, a fixed slider and a fixing spring, wherein disassembly and assembly seats are arranged on both sides of the film forming device, a square mounting block is installed on one side of the disassembly and assembly seat, a fixing rod is arranged above the square mounting block, a fixed slider is arranged on one side of the fixing rod, and a fixing spring is arranged above the fixed slider.

2. A distillation apparatus for methyltin mercaptide according to claim 1, characterized in that: A limit rod is arranged on one side above the lifting plate, a limit slider is arranged above the limit rod, and the middle of the limit slider is slidably connected to the limit slider.

3. A distillation apparatus for methyltin mercaptide according to claim 1, characterized in that: A support rod is arranged around the surface of the turning handle, and a limiting plug hole cooperating with the limiting rod is opened on one side of the lifting plate.

4. A distillation apparatus for methyltin mercaptide according to claim 1, characterized in that: A limiting plate is arranged inside one end of the fixing rod, and a fixing hole matching the fixing rod is opened above the square mounting block.

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