Receiving tank for producing 2, 3-dichloropyridine

Abstract

The utility model discloses a receiving tank for producing 2, 3-dichloropyridine, and relates to the technical field of canning equipment. The device comprises a bottom plate, and a supporting assembly is arranged on the upper side of the bottom plate. According to the utility model, through the stirring assembly, liquid received from the reaction kettle and dichloroethane are fully mixed and uniformly stirred, so that the situation that the liquid in the receiving tank leaks from the butt joint position due to the butt joint of the receiving tank and the centrifugal machine is avoided, the waste of resources is reduced, and through the three stirring blades, the stirring efficiency is improved. The distance between the three stirring blades can be changed, liquid crystal substances remaining on the inner wall of the receiving tank can be scraped while liquid in the receiving tank is stirred, and in addition, a scraping cover is used for scraping liquid crystal substances remaining on the inner wall of the receiving tank and the peripheral sides of the hollow shaft and the three rectangular frames again. The influence of residual liquid crystal substances on the subsequent use of the receiving tank is avoided, and the pollution to the liquid is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of canning equipment, and in particular relates to a receiving tank for producing 2,3-dichloropyridine. Background Art

[0002] When producing 2,3-dichloro-5-chloropyridine, after processing through the reactor, it is necessary to receive the material through a receiving tank. Under the high-speed rotation of the centrifuge, the kettle liquid and dichloroethane react quickly. The receiving tank is a common container for storing and receiving liquids, gases, bulk materials and other substances. It can be used to store various substances such as petroleum, chemicals, and food, and can also be used as a transfer station for materials in multiple process flows.

[0003] A Chinese patent with announcement number CN210028652U discloses a receiving tank for producing 2,3-dichloro-5-chloropyridine, including a tank body, a scraper and a latch mechanism. Handles are fixedly connected to both ends of the outer side of the tank body, a drain pipe is fixedly connected to the bottom of the outer side of the tank body, a slot is provided inside the tank body above one of the handles, compression grooves are provided inside both ends of the tank body and below the slots, and a bayonet is slidably connected to the inside of the two compression grooves.

[0004] Although the device in the above application receives the liquid through the tank body, it also needs to be docked with the centrifuge and drive the tank body to rotate, so that the liquid in the tank body can easily leak out from the docking point, thereby causing a waste of resources, which is not conducive to further processing in the later stage and greatly reduces the work efficiency. In addition, when the liquid in the tank body is discharged, liquid crystals will remain on the inner wall of the tank body, affecting the concentration of the subsequent liquid reception, thereby causing pollution to the liquid.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, provide a receiving tank for producing 2,3-dichloropyridine, and solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0008] A receiving tank for producing 2,3-dichloropyridine, comprising: a bottom plate, a support assembly is mounted on the upper side of the bottom plate, a receiving tank is mounted above the support assembly, a stirring assembly is rotatably matched in the middle of the receiving tank, a scraping cover is slidably matched inside the receiving tank, and the scraping cover corresponds to the stirring assembly;

[0009] The stirring assembly includes a hollow shaft rotatably fitted in the middle of the receiving tank, three rectangular frames installed on the circumference of the hollow shaft, three stirring blades respectively slidably fitted in the three rectangular frames, three openings opened on the circumference of the middle part of the hollow shaft, three trapezoidal blocks fixed at the middle of one end of the three stirring blades and respectively located in the three openings, and a pushing block assembly slidably fitted in the hollow shaft and corresponding to the three trapezoidal blocks.

[0010] Optionally, a first cylinder is fixed to one end of the receiving tank, three slots are opened in the middle of the scraper cover, cleaning brushes are fixed to the inner walls of the three slots and the surrounding sides of the scraper cover, the output end of the first cylinder is fixed to one side of the scraper cover, one end of the three slots are connected, and the three rectangular frames are respectively located in the three slots.

[0011] By adopting the above technical solution, the first cylinder is used to drive the scraper cover to move horizontally inside the receiving tank, so that the cleaning brushes on the sides of the scraper cover and the inner walls of the three slots can synchronously scrape off the liquid crystals remaining on the inner walls of the receiving tank and the sides of the three rectangular frames, thereby avoiding contamination of the internal liquid when the receiving tank is used next time, and further improving the working efficiency of the device.

[0012] Optionally, the push block assembly includes a second cylinder fixed to the other end of the receiving tank, a push rod fixed to the output end of the second cylinder, and three sliders fixed to the lower end of the push rod, the sliders correspond to the inclined sides of the trapezoidal block, the trapezoidal block slides in place on the inner side of the opening, and the push rod slides in place on the inner side of the hollow shaft.

[0013] By adopting the above technical solution, the second cylinder can be used to drive the push rod to move horizontally inside the hollow shaft, so that the three sliders can squeeze the three trapezoidal blocks synchronously, so that the three trapezoidal blocks cancel the clamping relationship with the three openings, so that the three stirring blades can synchronously extend out of the three rectangular frames and contact the inner wall of the receiving tank, so as to better scrape off the liquid crystals remaining on the inner wall of the receiving tank.

[0014] Optionally, two springs are installed between one end of the three trapezoidal blocks and the inner walls of the three rectangular frames, and the trapezoidal block is located between two adjacent springs.

[0015] By adopting the above technical solution, the two springs can be used to elastically expand and contract according to the distance between the trapezoidal block and the rectangular frame, thereby ensuring the stability of the stirring blade when it extends out of the rectangular frame.

[0016] Optionally, the support assembly includes support rods respectively fixed at four diagonal positions on the upper side of the base plate, arc-shaped support blocks respectively fixed between the upper ends of two adjacent support rods, and four damping springs respectively fixed between the lower ends of the two arc-shaped support blocks and the upper side of the base plate, and the damping springs are sleeved on the circumferential side of the support rods.

[0017] By adopting the above technical solution, the two arc-shaped support blocks can be used to support the receiving tank, which effectively improves the stability of the receiving tank. The four damping springs can quickly absorb the impact force generated when the receiving tank shakes and reduce shock, effectively reducing damage to the receiving tank and protecting the receiving tank.

[0018] Optionally, a motor is fixed in the middle of one side of the receiving tank, the output end of the motor is fixed to one end of the hollow shaft, and a loading port and a unloading port are respectively provided on the circumferential sides of the upper and lower parts of the receiving tank.

[0019] By adopting the above technical solution, the hollow shaft can be driven to rotate by using the set motor, so that the hollow shaft drives the three rectangular frames and the three stirring blades to rotate synchronously, thereby better stirring the liquid and dichloroethane or scraping off the liquid crystals remaining on the inner wall of the receiving tank.

[0020] Optionally, the other ends of the three stirring blades are fixed with triangular shovel blocks and fit with the inner wall of the receiving tank, the inner walls of the three slots fit with the hollow shaft and the sides of the three rectangular frames, the sides of the scraper cover fit with the inner wall of the receiving tank, and a gap is left between one end of the three rectangular frames and one end of the inner wall of the receiving tank, and the scraper cover is located in the gap.

[0021] By adopting the above technical solution, the liquid crystals remaining on the inner wall of the receiving tank can be scraped off by using the triangular shovel block, further improving the cleanliness of the inside of the receiving tank, and the scraper cover is located in the gap to avoid the three rectangular frames and three stirring blades from colliding with the scraper cover during rotation, thereby making them rotate more smoothly inside the receiving tank.

[0022] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0023] 1. By setting a stirring assembly in the middle of the receiving tank, the liquid received from the reactor can be fully mixed with ethylene dichloride and stirred evenly, thereby avoiding the situation where the liquid in the receiving tank leaks from the docking point due to the docking of the receiving tank and the centrifuge, reducing the waste of resources and effectively improving the working efficiency of the device.

[0024] 2. By arranging three stirring blades in the three rectangular frames and utilizing a push block assembly that slides in the hollow shaft, the three stirring blades can be pushed out or retracted into the three rectangular frames, thereby changing the distance between the three stirring blades, so that the three stirring blades can not only stir the liquid in the receiving tank but also scrape off the liquid crystals remaining on the inner wall of the receiving tank. In addition, by arranging a scraper cover inside the receiving tank, the liquid crystals remaining on the inner wall of the receiving tank, the hollow shaft and the surrounding sides of the three rectangular frames can be scraped off again, thereby avoiding affecting the subsequent use of the receiving tank due to the residual liquid crystals, thereby effectively improving the cleanliness of the inside of the receiving tank and reducing the pollution to the liquid.

[0025] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0027] Figure 1 is a schematic diagram of the bottom plate structure;

[0028] Figure 2 This is a schematic diagram of the receiving tank structure;

[0029] Figure 3 It is a schematic diagram of the structure of the stirring component;

[0030] Figure 4 It is a schematic diagram of the stirring blade structure;

[0031] Figure 5 is a schematic diagram of the opening structure;

[0032] Figure 6 It is a schematic diagram of the slider structure;

[0033] Figure 7 is a schematic diagram of the structure of the second cylinder;

[0034] Figure 8 It is a schematic diagram of the feeding port structure;

[0035] In the accompanying drawings, the list of parts represented by each reference numeral is as follows: base plate 1; support assembly 2; receiving tank 3; stirring assembly 4; scraper cover 5; hollow shaft 6; rectangular frame 7; stirring blade 8; opening 9; trapezoidal block 10; push block assembly 11; first cylinder 12; slot 13; second cylinder 14; push rod 15; slider 16; spring 17; support rod 18; arc support block 19; damping spring 20; motor 21; loading port 22; unloading port 23.

[0036] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] The utility model is now described in further detail with reference to the accompanying drawings.

[0038] See also Figure 1-8 As shown, in this embodiment, a receiving tank for producing 2,3-dichloropyridine is provided, comprising: a bottom plate 1, a support assembly 2 is installed on the upper side of the bottom plate 1, a receiving tank 3 is installed above the support assembly 2, and a stirring assembly 4 is rotated in the middle of the receiving tank 3 to fully mix the liquid received from the reactor with the ethylene dichloride and stir it evenly, thereby avoiding the situation where the liquid in the receiving tank 3 leaks from the docking point due to the docking of the receiving tank 3 and the centrifuge, reducing the waste of resources and effectively improving the working efficiency of the device, and the interior of the receiving tank 3 is slidably matched with a scraper cover 5, which can scrape the liquid crystals remaining on the inner wall of the receiving tank 3 and the hollow shaft 6 and the three rectangular frames 7 again, thereby avoiding the residual liquid crystals affecting the subsequent use of the receiving tank 3, thereby effectively improving the cleanliness of the inside of the receiving tank 3 and reducing the pollution of the liquid, and the scraper cover 5 corresponds to the stirring assembly 4;

[0039] The stirring assembly 4 includes a hollow shaft 6 rotatably fitted in the middle of the receiving tank 3, three rectangular frames 7 installed on the circumference of the hollow shaft 6, three stirring blades 8 respectively slidably fitted in the three rectangular frames 7, three openings 9 opened on the circumference of the middle of the hollow shaft 6, three trapezoidal blocks 10 fixed in the middle of one end of the three stirring blades 8 and respectively located in the three openings 9, and a pushing block assembly 11 slidably fitted in the hollow shaft 6 and corresponding to the three trapezoidal blocks 10, which can push the three stirring blades 8 to extend or retract into the interior of the three rectangular frames 7, thereby changing the distance between the three stirring blades 8, so that it can not only stir the liquid in the receiving tank 3 but also scrape off the liquid crystals remaining on the inner wall of the receiving tank 3.

[0040] The working principle of the device is as follows: when it is necessary to receive the liquid in the reactor, the device is first placed at the discharge port of the reactor, and then the liquid in the reactor is poured into the interior of the receiving tank 3 through the discharge port, and a certain amount of ethylene dichloride is added. At this time, the stirring component 4 is started, and the stirring component 4 drives the hollow shaft 6 and the three rectangular frames 7 to quickly and evenly stir the liquid and ethylene dichloride. After the liquid and ethylene dichloride are stirred, they are introduced into the distillation kettle through the discharge port 23. After the introduction is completed, the push block component 11 is started, and the push block component 11 is slidably matched in the hollow shaft 6 and squeezes the three trapezoidal blocks 10, so that the three trapezoidal blocks 1 0 At the same time, the clamping relationship with the three openings 9 is cancelled, so that the three trapezoidal blocks 10 push the three stirring blades 8 to extend out of the inner sides of the three rectangular frames 7. At this time, one end of the three stirring blades 8 is fitted with the inner wall of the receiving tank 3, and then the hollow shaft 6 is rotated, so that the hollow shaft 6 drives the three stirring blades 8 and the three rectangular frames 7 to rotate synchronously, so that one end of the three stirring blades 8 scrapes the liquid crystals remaining on the inner wall of the receiving tank 3. After the scraping is completed, the scraping cover 5 is moved, so that the scraping cover 5 scrapes the inner wall of the receiving tank 3 and the surrounding sides of the three stirring blades 8 and the three rectangular frames 7 again, thereby completing the scraping work of the liquid crystals remaining on the inner wall of the receiving tank 3.

[0041] It should be noted that all electrical devices involved in this application can be powered by batteries or external power supplies.

[0042] like Figure 2 As shown, a first cylinder 12 is fixed to one end of the receiving tank 3 of the present embodiment, three slots 13 are provided in the middle of the scraper cover 5, cleaning brushes are fixed to the inner walls of the three slots 13 and the surrounding sides of the scraper cover 5, an output end of the first cylinder 12 is fixed to one side of the scraper cover 5, one ends of the three slots 13 are connected, and three rectangular frames 7 are respectively located in the three slots 13.

[0043] When it is necessary to scrape off the liquid crystals remaining on the inner wall of the receiving tank 3, start the first cylinder 12, and the output end of the first cylinder 12 drives the scraper cover 5 to move horizontally on the inner wall of the receiving tank 3, so that the scraper cover 5 drives the cleaning brushes on the surrounding side and the inner walls of the three slots 13 to synchronously scrape the inner wall of the receiving tank 3, the three stirring blades 8 and the surrounding sides of the three rectangular frames 7, and the scraper cover 5 moves back and forth left and right to scrape and clean the inner wall of the receiving tank 3, thereby completing the scraping of the liquid crystals remaining on the inner wall of the receiving tank 3.

[0044] like Figure 7 As shown, the push block assembly 11 of this embodiment includes a second cylinder 14 fixed to the other end of the receiving tank 3, a push rod 15 fixed to the output end of the second cylinder 14, and three sliders 16 fixed to the lower end of the push rod 15. The slider 16 corresponds to the inclined side of the trapezoidal block 10. The trapezoidal block 10 is slidably fitted to the inner side of the opening 9, and the push rod 15 is slidably fitted to the inner side of the hollow shaft 6; Figure 3 As shown, two springs 17 are installed between one end of the three trapezoidal blocks 10 and the inner walls of the three rectangular frames 7 in this embodiment, and the trapezoidal blocks 10 are located between two adjacent springs 17 .

[0045] When the liquid crystals remaining on the inner wall of the receiving tank 3 are scraped off, the second cylinder 14 is started, and the output end of the second cylinder 14 drives the push rod 15 to move horizontally inside the hollow shaft 6, so that the push rod 15 drives the three sliders 16 to squeeze the three trapezoidal blocks 10, so that the three trapezoidal blocks 10 cancel the clamping relationship with the three openings 9, so that the three trapezoidal blocks 10 push the three stirring blades 8 to extend out of the inner sides of the three rectangular frames 7. At this time, the three stirring blades 8 slide with the three rectangular frames 7, and one end of the three stirring blades 8 fits with the inner wall of the receiving tank 3. At the same time, the stirring blades 8 drive the two springs 17 to elastically stretch synchronously. At this time, the stirring assembly 4 is started, and the stirring assembly 4 drives the three stirring blades 8, the three rectangular frames 7, and the hollow shaft 6 to rotate synchronously. At this time, one end of the three stirring blades 8 scrapes the inner wall of the receiving tank 3, thereby completing the scraping of the liquid crystals remaining on the inner wall of the receiving tank 3. The slide block 16 is slidably connected to the trapezoidal block 10 . When the stirring blade 8 needs to be retracted into the rectangular frame 7 , the push rod 15 can be pulled in the reverse direction.

[0046] like Figure 3 As shown, the support assembly 2 of this embodiment includes support rods 18 respectively fixed at four diagonal positions on the upper side of the base plate 1, arc-shaped support blocks 19 respectively fixed between the upper ends of two adjacent support rods 18, and four damping springs 20 respectively fixed between the lower ends of the two arc-shaped support blocks 19 and the upper side of the base plate 1. The damping springs 20 are sleeved on the circumferential side of the support rods 18.

[0047] When it is necessary to dampen the shock of the receiving tank 3, the stirring component 4 will shake when stirring the liquid in the receiving tank 3. At this time, the receiving tank 3 drives the two arc-shaped support blocks 19 to press downward, so that the four damping springs 20 between the lower ends of the two arc-shaped support blocks 19 and the upper side of the bottom plate 1 are elastically expanded and contracted synchronously, so that the four damping springs 20 absorb the downward impact force of the two arc-shaped support blocks 19 and dampen the shock, so that the stirring component 4 can stir the liquid in the receiving tank 3 more smoothly, thereby completing the damping of the receiving tank 3.

[0048] like Figure 2 As shown, a motor 21 is fixed in the middle of one side of the receiving tank 3 of this embodiment, the output end of the motor 21 is fixed to one end of the hollow shaft 6, and a loading port 22 and a unloading port 23 are respectively opened on the circumference of the upper and lower parts of the receiving tank 3; Figure 4As shown, the other ends of the three stirring blades 8 of the present embodiment are fixed with triangular shovel blocks and fit with the inner wall circumference of the receiving tank 3, the inner walls of the three slots 13 fit with the hollow shaft 6 and the circumference of the three rectangular frames 7, the circumference of the scraper cover 5 fits with the inner wall circumference of the receiving tank 3, and a gap is left between one end of the three rectangular frames 7 and one end of the inner wall of the receiving tank 3, and the scraper cover 5 is located in the gap.

[0049] When it is necessary to stir the liquid and dichloroethane in the receiving tank 3, first pour the liquid in the reactor into the receiving tank 3 through the feeding port 22, add a certain amount of dichloroethane, and then start the motor 21. The output end of the motor 21 drives the hollow shaft 6 to rotate, so that the hollow shaft 6 drives the three rectangular frames 7 to rotate synchronously, thereby achieving full stirring of the liquid and dichloroethane. After the stirring is completed, it is introduced into the distillation kettle through the feeding port 23. After the introduction is completed, the push block assembly 11 is started, and the push block assembly 11 slides in the hollow shaft 6 and squeezes the three trapezoidal blocks 10, so that the three trapezoidal blocks 10 are simultaneously The clamping relationship with the three openings 9 is cancelled, so that the three trapezoidal blocks 10 push the three stirring blades 8 to extend out of the inner sides of the three rectangular frames 7. At this time, the three triangular shovel blocks are fitted with the inner wall of the receiving tank 3, and then the hollow shaft 6 is rotated, so that the hollow shaft 6 drives the three stirring blades 8, the three rectangular frames 7, and the three triangular shovel blocks to rotate synchronously, so that the three triangular shovel blocks scrape the liquid crystals remaining on the inner wall of the receiving tank 3. After scraping, move the scraper cover 5, so that the scraper cover 5 scrapes the inner wall of the receiving tank 3 and the surrounding sides of the three stirring blades 8 and the three rectangular frames 7 again, and completes the scraping of the liquid crystals remaining on the inner wall of the receiving tank 3.

[0050] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A receiving tank for producing 2,3-dichloropyridine, characterized in that: include: A bottom plate (1), a support assembly (2) is mounted on the upper side of the bottom plate (1), a receiving tank (3) is mounted above the support assembly (2), a stirring assembly (4) is rotatably engaged in the middle of the receiving tank (3), a scraping cover (5) is slidably engaged in the interior of the receiving tank (3), and the scraping cover (5) corresponds to the stirring assembly (4); The stirring assembly (4) comprises a hollow shaft (6) rotatably engaged with the middle part of the receiving tank (3), three rectangular frames (7) mounted on the circumference of the hollow shaft (6), three stirring blades (8) respectively slidably engaged with the three rectangular frames (7), three openings (9) opened on the circumference of the middle part of the hollow shaft (6), three trapezoidal blocks (10) fixed to the middle part of one end of the three stirring blades (8) and respectively located in the three openings (9), and a push block assembly (11) slidably engaged with the hollow shaft (6) and corresponding to the three trapezoidal blocks (10).

2. A receiving tank for producing 2,3-dichloropyridine according to claim 1, characterized in that: A first cylinder (12) is fixed to one end of the receiving tank (3); three slots (13) are provided in the middle of the scraper cover (5); cleaning brushes are fixed to the inner walls of the three slots (13) and the peripheral sides of the scraper cover (5); an output end of the first cylinder (12) is fixed to one side of the scraper cover (5); one end of the three slots (13) are connected; and the three rectangular frames (7) are respectively located in the three slots (13).

3. A receiving tank for producing 2,3-dichloropyridine according to claim 1, characterized in that: The push block assembly (11) comprises a second cylinder (14) fixed to the other end of the receiving tank (3), a push rod (15) fixed to the output end of the second cylinder (14), and three sliders (16) fixed to the lower end of the push rod (15), wherein the sliders (16) correspond to the inclined side of the trapezoidal block (10), the trapezoidal block (10) is slidably fitted on the inner side of the opening (9), and the push rod (15) is slidably fitted on the inner side of the hollow shaft (6).

4. A receiving tank for producing 2,3-dichloropyridine according to claim 1, characterized in that: Two springs (17) are installed between one end of each of the three trapezoidal blocks (10) and the inner walls of the three rectangular frames (7), and the trapezoidal block (10) is located between two adjacent springs (17).

5. A receiving tank for producing 2,3-dichloropyridine according to claim 1, characterized in that: The support assembly (2) comprises support rods (18) respectively fixed at four diagonal positions on the upper side of the base plate (1), arc-shaped support blocks (19) respectively fixed between the upper ends of two adjacent support rods (18), and four damping springs (20) respectively fixed between the lower ends of the two arc-shaped support blocks (19) and the upper side of the base plate (1), wherein the damping springs (20) are sleeved on the circumferential side of the support rods (18).

6. A receiving tank for producing 2,3-dichloropyridine according to claim 1, characterized in that: A motor (21) is fixed in the middle of one side of the receiving tank (3), the output end of the motor (21) is fixed to one end of the hollow shaft (6), and a loading port (22) and a unloading port (23) are respectively provided on the circumference of the upper and lower parts of the receiving tank (3).

7. A receiving tank for producing 2,3-dichloropyridine according to claim 2, characterized in that: The other ends of the three stirring blades (8) are fixed with triangular shovel blocks and fit with the inner wall of the receiving tank (3); the inner walls of the three slots (13) fit with the hollow shaft (6) and the circumference of the three rectangular frames (7); the circumference of the scraper cover (5) fits with the inner wall of the receiving tank (3); and a gap is left between one end of the three rectangular frames (7) and one end of the inner wall of the receiving tank (3); the scraper cover (5) is located in the gap.

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