Separation and purification device for durene

Abstract

The utility model discloses a separation and purification device for durene, which relates to the technical field of durene production and comprises a purification tank, a support column is arranged at the lower end of the purification tank, a feed port is arranged at the top end of the purification tank, and a purification component and a stirring component are arranged in the purification tank. The purification assembly and the stirring assembly are both fixed on a top plate of the purification tank, a crystal scraping assembly is arranged on the purification assembly, and a discharging assembly is arranged at the lower end of the purification assembly. Through mutual cooperation of the first scraping assembly, the second scraping assembly and the discharging assembly, the problems that an existing durene separation and purification device is difficult in material taking, meanwhile, durene has toxicity, the danger of manual material taking is high, and the practicability of the device is poor are solved.

Description

Technical Field

[0001] This utility model relates to the field of mesitylene production technology, specifically a mesitylene separation and purification device. Background Technology

[0002] The existing mesitylene separation and purification apparatus includes a mounting frame, a purification tank, a tank cover, an inlet pipe, a discharge pipe, and multiple crystallization columns. The purification tank is mounted on the mounting frame and has a purification chamber inside. An opening is located on the upper surface of the purification tank, communicating with the purification chamber. The tank cover is installed over the opening, and the inlet pipe is mounted on the tank cover, with its output end extending into the purification chamber. The discharge pipe is installed at the bottom of the purification tank, with its inlet end extending into the purification chamber. Multiple crystallization columns are installed within the purification chamber. When using the existing mesitylene separation and purification apparatus, the first... First, a mixture of mesitylene is injected into the purification chamber through an inlet pipe. Then, the mesitylene mixture is cooled in the purification chamber and gradually crystallizes on the surface of multiple crystallization columns. After crystallization, the residual mesitylene mixture is transported to the next process through a discharge pipe. Finally, the tank lid is opened to remove the mesitylene crystals from the multiple crystallization columns. However, in the use of existing mesitylene separation and purification equipment, it has been found that the mesitylene crystallizes on the surface of multiple crystallization columns located in the purification chamber, making material removal difficult. At the same time, the toxicity of mesitylene makes manual material removal highly dangerous, resulting in poor equipment practicality.

[0003] Based on this, a separation and purification apparatus for mesitylene is now provided, which can eliminate the drawbacks of existing apparatus. Utility Model Content

[0004] The purpose of this invention is to provide a separation and purification device for mesitylene to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A separation and purification device for mesitylene includes a purification tank, a support column at the lower end of the purification tank, a feed inlet at the top end of the purification tank, a purification component and a stirring component inside the purification tank, both of which are fixed to the top plate of the purification tank, a crystal scraping component on the purification component, and a discharge component at the lower end of the purification component.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0008] In one alternative: the purification tank has a liquid outlet at the bottom and a discharge outlet on one side; the liquid outlet is equipped with a manual valve, and the discharge outlet is equipped with an electric valve.

[0009] In one alternative: the electric valve includes a first motor and a valve plate, the first motor is fixed to the outside of the purification tank, the valve plate is located at one end of the discharge port, the valve plate is provided with a fixed shaft, the fixed shaft is rotatably connected to the side wall of the purification tank, and the output end of the first motor is connected to the fixed shaft.

[0010] In one alternative: the purification assembly includes crystallization columns and refrigeration pipes, the crystallization columns are fixed on the top plate of the purification tank, the refrigeration pipes are connected in series between the crystallization columns, and both ends of the refrigeration pipes are connected to external refrigeration equipment.

[0011] In one alternative embodiment: the stirring assembly includes a second motor, which is fixed to the top plate of the purification tank. The output end of the second motor is connected to a rotating shaft, which is provided with a spiral blade. The bottom end of the rotating shaft is provided with a cross-shaped fixing seat, and the cross-shaped fixing seat is provided with a stirring rod.

[0012] In one alternative embodiment: the crystallization scraping assembly includes a first scraping assembly and a second scraping assembly. The first scraping assembly is sleeved on the outside of the crystallization column, and the second scraping assembly is disposed on the inner wall of the purification tank. The first scraping assembly includes a first telescopic rod and a scraping sleeve. The first telescopic rod is fixed to the top plate of the purification tank, and the scraping sleeve is sleeved on the crystallization column. A connecting plate is provided between the scraping sleeves, and the connecting plate is fixed to the output end of the first telescopic rod.

[0013] In one alternative: the second scraping assembly includes a second telescopic rod and a scraper, the second telescopic rod being fixed to the top plate of the purification tank, the scraper being fixed to the output end of the second telescopic rod, and the scraper being in close contact with the inner wall of the purification tank.

[0014] In one alternative embodiment: the discharge assembly includes a filter plate, which is fixed inside the purification tank. A scraper is provided on the side of the filter plate opposite to the discharge port. A third telescopic rod is provided on one side of the scraper. The third telescopic rod is fixed on the outer wall of the purification tank, and the output end of the third telescopic rod is connected to the scraper.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention solves the problems of difficulty in material collection in existing mesitylene separation and purification devices by the cooperation of the first scraping component, the second scraping component, and the discharge component. At the same time, mesitylene is toxic and manual material collection is dangerous, resulting in poor equipment practicality. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one side of the present invention.

[0018] Figure 2This is a schematic diagram of the structure on the other side of this utility model.

[0019] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure reference numerals: 100, Purification tank; 101, Support column; 102, Feed inlet; 103, Liquid outlet; 104, Discharge outlet; 105, Manual valve; 106, First motor; 107, Fixed shaft; 108, Valve plate; 200, Purification assembly; 201, Crystallization column; 202, Refrigeration pipe; 300, Stirring assembly; 301, Second motor; 302, Rotating shaft; 303, Spiral blade; 304, Cross-shaped fixing seat; 305, Stirring rod; 400, Crystallization scraping assembly; 401, First telescopic rod; 402, Scraping sleeve; 403, Connecting plate; 404, Second telescopic rod; 405, Scraper; 500, Discharge assembly; 501, Filter plate; 502, Scraper; 503, Third telescopic rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figures 1-3 As shown, a separation and purification device for mesitylene includes a purification tank 100, a purification component 200, a stirring component 300, a crystallization scraping component 400, and a discharge component 500. The purification tank 100 has a support column 101 at its lower end and a feed inlet 102 at its top. The purification tank 100 contains the purification component 200 and the stirring component 300, both of which are fixed to the top plate of the purification tank 100. The purification component 200 has a crystallization scraping component 500. The crystal scraping component 400 and the purification component 200 are equipped with a discharge component 500 at the lower end. In use, the mesitylene stock solution is first added into the purification tank 100 through the inlet 102. Then, the mesitylene is crystallized and purified by the purification component 200. At the same time, the crystallization rate is accelerated by stirring by the stirring component 300. After crystallization is completed, the waste liquid is discharged first. Then, the crystals on the purification component 200 are scraped off by the crystal scraping component 400. Finally, the crystals are taken out by the discharge component 500 below.

[0023] In one embodiment, such as Figure 1 and Figure 3 As shown, the purification tank 100 has a liquid outlet 103 at the bottom and a discharge outlet 104 on one side. The liquid outlet 103 is equipped with a manual valve 105, and the discharge outlet 104 is equipped with an electric valve. The liquid outlet 103 is used to discharge the purified waste liquid, and the discharge outlet 104 is used to discharge the purified crystals.

[0024] In one embodiment, such as Figure 2 and Figure 3 As shown, the electric valve includes a first motor 106 and a valve plate 108. The first motor 106 is fixed on the outside of the purification tank 100, and the valve plate 108 is located at one end of the discharge port 104. A fixed shaft 107 is provided on the valve plate 108, and the fixed shaft 107 is rotatably connected to the side wall of the purification tank 100. The output end of the first motor 106 is connected to the fixed shaft 107. In use, the valve plate 108 is driven to rotate by the first motor 106, thereby controlling the opening and closing of the discharge port 104.

[0025] In one embodiment, such as Figure 3 As shown, the purification component 200 includes a crystallization column 201 and a refrigeration pipe 202. The crystallization column 201 is fixed on the top plate of the purification tank 100, and the refrigeration pipe 202 is connected in series between the crystallization columns 201. Both ends of the refrigeration pipe 202 are connected to an external refrigeration device. The refrigeration device can be a compression refrigeration machine, which relies on the action of the compressor to increase the pressure of the refrigerant to achieve a refrigeration cycle. This is existing technology. In use, when the mesitylene stock solution is added into the purification tank 100 from the inlet 102, the external refrigeration device is started, and the crystallization column 201 is cooled through the refrigeration pipe 202, thereby causing mesitylene to crystallize on the surface of the crystallization column 201.

[0026] In one embodiment, such as Figure 3 As shown, the stirring assembly 300 includes a second motor 301, which is fixed to the top plate of the purification tank 100. The output end of the second motor 301 is connected to a rotating shaft 302. A spiral blade 303 is provided on the rotating shaft 302, and a cross-shaped fixing seat 304 is provided at the bottom end of the rotating shaft 302. A stirring rod 305 is provided on the cross-shaped fixing seat 304. In use, the second motor 301 drives the rotating shaft 302 to rotate, thereby driving the spiral blade 303 and the stirring rod 305 to move and rotate, stirring the mesitylene stock solution and accelerating the crystallization rate.

[0027] In one embodiment, such as Figure 3 As shown, the crystallization scraping assembly 400 includes a first scraping assembly and a second scraping assembly. The first scraping assembly is sleeved on the outside of the crystallization column 201, and the second scraping assembly is disposed on the inner wall of the purification tank 100. The first scraping assembly includes a first telescopic rod 401 and a scraping sleeve 402. The first telescopic rod 401 is fixed on the top plate of the purification tank 100, and the scraping sleeve 402 is sleeved on the crystallization column 201. A connecting plate 403 is provided between the scraping sleeves 402. The connecting plate 403 is fixed to the output end of the first telescopic rod 401. In use, after crystallization is completed in the purification tank 100, the waste liquid is first discharged, and then the scraping sleeve 402 is moved up and down along the crystallization column 201 by controlling the first telescopic rod 401 to scrape off the crystals on the crystallization column 201.

[0028] In one embodiment, such as Figure 3As shown, the second scraping assembly includes a second telescopic rod 404 and a scraper 405. The second telescopic rod 404 is fixed to the top plate of the purification tank 100, and the scraper 405 is fixed to the output end of the second telescopic rod 404. The scraper 405 is in close contact with the inner wall of the purification tank 100. In use, the second telescopic rod 404 drives the scraper 405 to move up and down along the inner wall of the purification tank 100 to scrape off the crystals remaining on the inner wall of the purification tank 100.

[0029] In one embodiment, such as Figure 3 As shown, the discharge assembly 500 includes a filter plate 501, which is fixed inside the purification tank 100. A scraper 502 is provided on the side of the filter plate 501 opposite to the discharge port 104. A third telescopic rod 503 is provided on one side of the scraper 502. The third telescopic rod 503 is fixed on the outer wall of the purification tank 100. The output end of the third telescopic rod 503 is connected to the scraper 502. In use, the scraped crystals fall onto the filter plate 501. Then, the scraper 502 is driven to move laterally along the filter plate 501 by the third telescopic rod 503, pushing the crystals on the filter plate 501 to the discharge port 104, so that the crystals are discharged from the discharge port.

[0030] The above embodiments disclose a separation and purification apparatus for mesitylene. In use, the mesitylene stock solution is first added to the purification tank 100 through the inlet 102. Then, the external refrigeration equipment is activated, and the crystallization column 201 is cooled through the refrigeration pipe 202, causing the mesitylene to crystallize on the surface of the crystallization column 201. Simultaneously, the second motor 301 drives the rotating shaft 302 to rotate, thereby moving and rotating the spiral blade 303 and the stirring rod 305 to stir the mesitylene stock solution and accelerate the crystallization rate. After crystallization is complete... First, the waste liquid is discharged. Then, the scraping sleeve 402 is moved up and down along the crystallization column 201 by controlling the first telescopic rod 401 to scrape off the crystals on the crystallization column 201. At the same time, the scraper 405 is moved up and down along the inner wall of the purification tank 100 by the second telescopic rod 404 to scrape off the crystals remaining on the inner wall of the purification tank 100. Then, the scraper 502 is moved laterally along the filter plate 501 by the third telescopic rod 503 to push the crystals on the filter plate 501 to the discharge port 104, so that the crystals are discharged from the discharge port.

[0031] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A separation and purification apparatus for mesitylene, comprising a purification tank (100), wherein a support column (101) is provided at the lower end of the purification tank (100), and a feed inlet (102) is provided at the top end of the purification tank (100), characterized in that, The purification tank (100) is equipped with a purification component (200) and a stirring component (300). The purification component (200) and the stirring component (300) are both fixed on the top plate of the purification tank (100). The purification component (200) is equipped with a crystal scraping component (400), and the lower end of the purification component (200) is equipped with a discharge component (500). The crystallization scraping assembly (400) includes a first scraping assembly and a second scraping assembly. The first scraping assembly is sleeved on the outside of the crystallization column (201), and the second scraping assembly is disposed on the inner wall of the purification tank (100). The first scraping assembly includes a first telescopic rod (401) and a scraping sleeve (402). The first telescopic rod (401) is fixed on the top plate of the purification tank (100), and the scraping sleeve (402) is sleeved on the crystallization column (201). A connecting plate (403) is provided between the scraping sleeves (402), and the connecting plate (403) is fixed to the output end of the first telescopic rod (401). The second scraping assembly includes a second telescopic rod (404) and a scraper (405). The second telescopic rod (404) is fixed to the top plate of the purification tank (100), and the scraper (405) is fixed to the output end of the second telescopic rod (404). The scraper (405) is in close contact with the inner wall of the purification tank (100).

2. The apparatus for separating and purifying mesitylene according to claim 1, characterized in that, The purification tank (100) is provided with a liquid outlet (103) at the bottom and a material outlet (104) on one side. The liquid outlet (103) is provided with a manual valve (105) and the material outlet (104) is provided with an electric valve.

3. The apparatus for separating and purifying mesitylene according to claim 2, characterized in that, The electric valve includes a first motor (106) and a valve plate (108). The first motor (106) is fixed on the outside of the purification tank (100). The valve plate (108) is located at one end of the discharge port (104). A fixed shaft (107) is provided on the valve plate (108). The fixed shaft (107) is rotatably connected to the side wall of the purification tank (100). The output end of the first motor (106) is connected to the fixed shaft (107).

4. The apparatus for separating and purifying mesitylene according to claim 1, characterized in that, The purification component (200) includes a crystallization column (201) and a refrigeration pipe (202). The crystallization column (201) is fixed on the top plate of the purification tank (100). The refrigeration pipe (202) is connected in series between the crystallization columns (201). Both ends of the refrigeration pipe (202) are connected to an external refrigeration device.

5. The apparatus for separating and purifying mesitylene according to claim 1, characterized in that, The stirring assembly (300) includes a second motor (301), which is fixed on the top plate of the purification tank (100). The output end of the second motor (301) is connected to a rotating shaft (302). The rotating shaft (302) is provided with a spiral blade (303). The bottom end of the rotating shaft (302) is provided with a cross-shaped fixing seat (304), and the cross-shaped fixing seat (304) is provided with a stirring rod (305).

6. The apparatus for separating and purifying mesitylene according to claim 1, characterized in that, The discharge assembly (500) includes a filter plate (501), which is fixed inside the purification tank (100). A scraper (502) is provided on the side of the filter plate (501) opposite to the discharge port (104). A third telescopic rod (503) is provided on one side of the scraper (502), which is fixed on the outer wall of the purification tank (100). The output end of the third telescopic rod (503) is connected to the scraper (502).

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