Automatic water distribution device for recovering methylbenzene

Abstract

The utility model discloses an automatic water separation device for recovering toluene, which relates to the technical field of separation devices, and comprises a separation assembly used for separating toluene liquid from water, the separation assembly comprises a separation cylinder and a discharge pipe arranged at the inner bottom of the separation cylinder, the inner bottom of the separation cylinder is of a conical structure, and the discharge pipe is arranged in the separation cylinder. A drainage pipe is arranged on the surface of the discharge pipe, a first electromagnetic valve and a second electromagnetic valve are arranged on the surfaces of the discharge pipe and the drainage pipe respectively, and a toluene sensor is fixedly arranged on the inner wall of the drainage pipe. According to the automatic water separation device for recovering toluene, the separation assembly is arranged, so that toluene and water in the separation barrel can be separated and layered in the actual use process of the device, and the water is positioned below toluene liquid, so that the purpose of automatically separating the toluene and the water in the separation barrel can be achieved, and the production efficiency is improved. And the quality and the safety of the product are effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of separation device technology, and in particular to an automatic water separation device for recovering toluene. Background Technology

[0002] In the process of preparing trichlorotoluene by chlorinating toluene, water may pose the following hazards:

[0003] 1. Water may interact with reactants or products, leading to unwanted side reactions that could affect the yield and purity of trichlorotoluene:

[0004] Moisture can react with trichlorotoluene to produce benzoyl chloride, which reduces the yield of trichlorotoluene and increases the content of the impurity benzoyl chloride.

[0005] Moisture can react with chlorine to produce byproducts such as hypochlorous acid or hydrochloric acid. These byproducts not only consume chlorine but may also corrode reaction equipment. Hypochlorous acid has a stronger oxidizing power than chlorine and can degrade toluene chloride, producing more types and quantities of impurities.

[0006] Second, water may increase the pressure in the reaction system because it evaporates into water vapor at high temperatures, thus increasing the total pressure of the system. Improper pressure control in the reaction system may lead to safety risks, such as equipment leaks or explosions. Simultaneously, the increase in low-molecular-weight impurities as a byproduct also further increases the system pressure.

[0007] Third, if the finished trichlorotoluene contains moisture, it may lead to a decline in product quality during storage and use. For example, moisture may promote the decomposition of trichlorotoluene or react with other substances to generate unwanted impurities.

[0008] Therefore, in the process of preparing trichlorotoluene by chlorinating toluene, the moisture content in the reaction system should be strictly controlled to ensure the quality and safety of the product. In view of this, this application proposes an automatic water separator for toluene recovery. Utility Model Content

[0009] This utility model discloses an automatic water separation device for recovering toluene, which aims to solve the technical problem in the background art of being unable to quickly separate water from toluene.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] An automatic toluene recovery and water separation unit includes:

[0012] A separation assembly for separating liquid toluene from water includes a separation cylinder and a discharge pipe disposed at the bottom of the separation cylinder. The bottom of the separation cylinder has a conical structure. A drain pipe is disposed on the surface of the discharge pipe, and a first solenoid valve and a second solenoid valve are disposed on the surfaces of the discharge pipe and the drain pipe, respectively. A toluene sensor is fixedly disposed on the inner wall of the drain pipe. The separation assembly also includes a vacuum generator fixed on the upper surface of the separation cylinder for drawing a vacuum inside the separation cylinder.

[0013] In a preferred embodiment, the inner top wall of the separation cylinder is provided with an injection pipe extending to the outside of the separation cylinder, and the surface of the injection pipe is provided with a control valve.

[0014] By setting up an injection pipe, the toluene mixture can be transported to the separator, and the valve settings facilitate the sealing of the injection pipe.

[0015] In a preferred embodiment, a PLC controller is fixedly mounted on the outer surface of the separation cylinder, and the toluene sensor, the first solenoid valve, and the second solenoid valve are all electrically connected to the PLC controller via wires.

[0016] By setting up a PLC controller, it is possible to automatically discharge moisture and toluene liquid.

[0017] In a preferred embodiment, the end of the discharge pipe furthest from the separation cylinder is provided with a first flange, and the end of the discharge pipe is fixedly connected to a recovery pipe communicating with an external toluene collection tank via the first flange. The end of the drain pipe furthest from the separation cylinder is provided with a second flange, and the end of the drain pipe is fixedly connected to a diversion pipe communicating with an external water collection tank via the second flange.

[0018] By setting a first flange and a second flange, it is easy to connect the recovery pipe and the diversion pipe to the discharge pipe and the drain pipe, respectively.

[0019] In a preferred embodiment, the bottom end of the separation cylinder is provided with a support assembly, which includes a support ring disposed at the bottom of the separation cylinder and three support rods fixedly arranged in a circumferential array on the upper surface of the support ring, and the top ends of the three support rods are all fixedly connected to the surface of the separation cylinder.

[0020] By setting up a support ring and three support rods, the separator can be easily supported, thus ensuring the stability of the separator during use.

[0021] In a preferred embodiment, the support ring has an annular cavity inside, and a lifting ring is slidably disposed on the inner wall of the annular cavity. A mounting ring is fixed on the lower surface of the lifting ring. A plurality of rotating cavities are formed in a circumferential array on the lower surface of the mounting ring. Metal balls are rotatably disposed on the inner wall of each of the rotating cavities. An annular opening corresponding to the mounting ring is formed on the inner bottom wall of the annular cavity. A plurality of anti-slip pads are fixed in a circumferential array on the lower surface of the support ring.

[0022] By setting up a lifting ring and a metal ball, the metal ball can be automatically moved downward by the descent of the lifting ring. At the same time, it is convenient for the support ring to move on the ground via the metal ball. Moreover, the anti-slip pad effectively ensures the stability of the separator when it reaches the designated location for use.

[0023] In a preferred embodiment, a drive motor is fixedly mounted on the upper surface of the support ring, and the output end of the drive motor extends into the interior of the annular cavity and is fixedly mounted with a threaded post. A plurality of limiting rods are fixedly mounted on the inner top wall and inner bottom wall of the annular cavity. The plurality of limiting rods and the threaded post are arranged in a circumferential array inside the annular cavity. The upper surface of the lifting ring is respectively provided with threaded holes that are threadedly connected to the outer surface of the threaded post, and a plurality of sliding holes that are slidably connected to the surfaces of the plurality of limiting rods.

[0024] By setting up a drive motor and a threaded column, the rotation of the drive motor can drive the threaded column to rotate, thereby driving the lifting ring to rise and fall automatically. Moreover, the setting of the limit rod effectively ensures the stability of the lifting ring during its rise and fall.

[0025] As can be seen from the above, the automatic toluene recovery and water separation device provided by this utility model has the following technical effects.

[0026] Firstly, by setting up a separation component, this utility model enables the toluene and water in the separation cylinder to be separated and layered during actual use, with the water located below the toluene liquid. This achieves the purpose of automatically separating toluene and water in the separation cylinder, effectively ensuring the quality and safety of the product.

[0027] Secondly, this utility model, by setting up a support component, can support the separation cylinder through the support ring and support rod, ensuring its stability during use. At the same time, when it is necessary to move the position of the separation cylinder, the drive motor can be started to drive the threaded column to rotate. The rotation of the threaded column causes the lifting ring to move downward, thereby moving the mounting ring downward and causing the metal ball to move out from the inside of the support ring to contact the ground, and lifting the support ring and the separation cylinder upward, thus achieving the purpose of facilitating the transfer of the separation cylinder, which is highly practical. Attached Figure Description

[0028] Figure 1This is a three-dimensional structural diagram of the automatic water separation device for toluene recovery proposed in this utility model.

[0029] Figure 2 This is a bottom view of the automatic toluene recovery and water separation device proposed in this utility model.

[0030] Figure 3 This is a cross-sectional structural diagram of the automatic water separation device for toluene recovery proposed in this utility model.

[0031] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0032] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0033] Attached Figure

[0034] 100. Separation assembly; 101. Separation cylinder; 102. Discharge pipe; 103. Drain pipe; 104. First solenoid valve; 105. Second solenoid valve; 106. Toluene sensor; 107. Vacuum generator; 108. Injection pipe; 109. PLC controller;

[0035] 200. Support assembly; 201. Support ring; 202. Support rod; 203. Lifting ring; 204. Mounting ring; 205. Metal ball; 206. Anti-slip pad; 207. Drive motor; 208. Threaded column; 209. Limiting rod. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Reference Figures 1 to 5 An automatic toluene recovery and water separation device includes:

[0039] The separation assembly 100 is used to separate toluene liquid from water. The separation assembly 100 includes a separation cylinder 101 and a discharge pipe 102 disposed at the bottom of the separation cylinder 101. The bottom of the separation cylinder 101 has a conical structure. A drain pipe 103 is disposed on the surface of the discharge pipe 102. A first solenoid valve 104 and a second solenoid valve 105 are disposed on the surfaces of the discharge pipe 102 and the drain pipe 103, respectively. A toluene sensor 106 is fixedly disposed on the inner wall of the drain pipe 103. The separation assembly 100 also includes a vacuum generator 107 fixed on the upper surface of the separation cylinder 101 for vacuuming the inside of the separation cylinder 101.

[0040] Reference Figure 2 In a preferred embodiment, the inner top wall of the separator 101 is provided with an injection pipe 108 extending to the outside of the separator 101, and the surface of the injection pipe 108 is provided with a control valve.

[0041] Specifically, by setting up the injection pipe 108, the toluene mixture can be transported into the separator 101, and the valve setting facilitates the sealing of the injection pipe 108.

[0042] Reference Figure 3 and Figure 4 In a preferred embodiment, a PLC controller 109 is fixed on the outer surface of the separator 101, and the toluene sensor 106, the first solenoid valve 104 and the second solenoid valve 105 are all electrically connected to the PLC controller 109 through wires.

[0043] Specifically, by setting up the PLC controller 109, the purpose of automatically discharging moisture and toluene liquid can be achieved through the PLC controller 109.

[0044] Reference Figure 3 In a preferred embodiment, the end of the discharge pipe 102 away from the separation cylinder 101 is provided with a first flange, and the end of the discharge pipe 102 is fixedly connected to a recovery pipe communicating with an external toluene collection tank through the first flange. The end of the drain pipe 103 away from the separation cylinder 101 is provided with a second flange, and the end of the drain pipe 103 is fixedly connected to a diversion pipe communicating with an external water collection tank through the second flange.

[0045] Specifically, by setting a first flange and a second flange, it is convenient to connect the recovery pipe and the diversion pipe to the discharge pipe 102 and the drain pipe 103, respectively.

[0046] In this invention, by setting up a separation component 100, the device, during actual use, can deliver a mixture of toluene and water into the separation cylinder 101 through the injection pipe 108, then close the control valve, and start the vacuum generator 107 to create a vacuum inside the separation cylinder 101. After standing for half an hour, the toluene and water in the separation cylinder 101 will separate and stratify, with the water below the toluene liquid. Then, the second solenoid valve 105 is activated to discharge the water at the bottom of the separation cylinder 101 into an external water collection tank. When the water at the bottom is drained, the upper layer of toluene liquid can enter the drain pipe 103. At this time, the toluene sensor 106 in the drain pipe 103 detects the toluene and transmits the signal to the PLC controller 109. The PLC controller 109 automatically controls the second solenoid valve 105 to close and the first solenoid valve 104 to open, so that the toluene liquid in the separation cylinder 101 can be transported to the toluene storage tank for storage through the discharge pipe 102. This achieves the purpose of automatically separating the toluene and water in the separation cylinder 101, effectively ensuring the quality and safety of the product.

[0047] Reference Figure 3 and Figure 5 In a preferred embodiment, a support assembly 200 is provided at the bottom end of the separation cylinder 101. The support assembly 200 includes a support ring 201 disposed at the bottom of the separation cylinder 101 and three support rods 202 fixedly arranged in a circumferential array on the upper surface of the support ring 201, and the top ends of the three support rods 202 are all fixedly connected to the surface of the separation cylinder 101.

[0048] Specifically, by setting a support ring 201 and three support rods 202, the separation cylinder 101 is easily supported, thereby ensuring the stability of the separation cylinder 101 during use.

[0049] Reference Figure 3 and Figure 5 In a preferred embodiment, the support ring 201 has an annular cavity inside, and a lifting ring 203 is slidably disposed on the inner wall of the annular cavity. A mounting ring 204 is fixedly disposed on the lower surface of the lifting ring 203. A plurality of rotating cavities are arranged in a circumferential array on the lower surface of the mounting ring 204. Metal balls 205 are rotatably disposed on the inner wall of each of the plurality of rotating cavities. An annular opening corresponding to the mounting ring 204 is opened on the inner bottom wall of the annular cavity. A plurality of anti-slip pads 206 are fixedly disposed in a circumferential array on the lower surface of the support ring 201.

[0050] Specifically, by setting up a lifting ring 203 and a metal ball 205, the metal ball 205 can be automatically moved downward by the descent of the lifting ring 203, while the support ring 201 can move on the ground via the metal ball 205. Moreover, the anti-slip pad 206 effectively ensures the stability of the separator 101 when it reaches the designated location for use.

[0051] Reference Figure 3 and Figure 5 In a preferred embodiment, a drive motor 207 is fixedly mounted on the upper surface of the support ring 201, and the output end of the drive motor 207 extends into the interior of the annular cavity and is fixedly mounted with a threaded post 208. A plurality of limiting rods 209 are fixedly mounted on the inner top wall and inner bottom wall of the annular cavity. The plurality of limiting rods 209 and the threaded post 208 are arranged in a circumferential array inside the annular cavity. The upper surface of the lifting ring 203 is respectively provided with threaded holes that are threadedly connected to the outer surface of the threaded post 208, and a plurality of sliding holes that are slidably connected to the surfaces of the plurality of limiting rods 209.

[0052] Specifically, by setting up a drive motor 207 and a threaded post 208, the rotation of the drive motor 207 can drive the threaded post 208 to rotate, thereby driving the lifting ring 203 to automatically rise and fall. Moreover, the setting of the limit rod 209 effectively ensures the stability of the lifting ring 203 during the rising and falling.

[0053] This utility model, by setting up a support component 200, can support the separation cylinder 101 through the support ring 201 and the support rod 202, ensuring its stability during use. At the same time, when it is necessary to move the position of the separation cylinder 101, the drive motor 207 can be started to drive the threaded column 208 to rotate. The rotation of the threaded column 208 causes the lifting ring 203 to move downward, thereby causing the mounting ring 204 to move downward and causing the metal ball 205 to move out from the inside of the support ring 201 to contact the ground, and lifting the support ring 201 and the separation cylinder 101 upward, thus achieving the purpose of facilitating the transfer of the separation cylinder 101, which is highly practical.

[0054] Working Principle: In actual use, the device delivers a mixture of toluene and water into the separation cylinder 101 via the injection pipe 108, then closes the control valve and activates the vacuum generator 107 to create a vacuum inside the separation cylinder 101. After standing for half an hour, the toluene and water in the separation cylinder 101 will separate and stratify, with the water below the toluene liquid. Then, the second solenoid valve 105 is activated to drain the water at the bottom of the separation cylinder 101 into an external water collection tank. When the water at the bottom of the separation cylinder 101 is drained, the upper layer of toluene liquid can enter the drain pipe 103. At this time, the toluene sensor 106 in the drain pipe 103 detects the toluene and transmits a signal to the PLC controller 109. The PLC controller 109 automatically controls the second solenoid valve 105 to close and the first solenoid valve 104 to open. The toluene liquid in the separator 101 can be transported to the toluene storage tank for storage through the discharge pipe 102, thereby achieving the purpose of automatically separating toluene and water in the separator 101, effectively ensuring product quality and safety. Moreover, the separator 101 can be supported by the support ring 201 and the support rod 202 to ensure its stability during use. At the same time, when it is necessary to move the separator 101, the drive motor 207 can be started to drive the threaded column 208 to rotate. The rotation of the threaded column 208 drives the lifting ring 203 to move downward, thereby driving the mounting ring 204 to move downward and causing the metal ball 205 to move out from the inside of the support ring 201 to contact the ground, and lifting the support ring 201 and the separator 101 upward, thereby facilitating the transfer of the separator 101. It is highly practical.

[0055] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A toluene automatic water trap recovery device characterized by, The utility model relates to a separation assembly (100) for separating toluene liquid from water, the separation assembly (100) includes the separation cylinder (101) and the discharge pipe (102) of setting at the bottom in the separation cylinder (101), the inner bottom of separation cylinder (101) is conical structure, the surface of discharge pipe (102) is provided with drain pipe (103), and the surface of discharge pipe (102) and drain pipe (103) is provided with first solenoid valve (104) and second solenoid valve (105) respectively, the inner wall of drain pipe (103) is fixed with toluene sensor (106), the separation assembly (100) still includes the vacuum generator (107) for carrying out the suction vacuum to the inside of separation cylinder (101) and being fixed in the upper surface of separation cylinder (101). The inner top wall of the separation cylinder (101) is provided with an injection pipe (108) extending to the outside of the separation cylinder (101), and the surface of the injection pipe (108) is provided with a control valve.

2. The automatic toluene recovery water trap according to claim 1, wherein The outer surface of the separation cylinder (101) is fixedly provided with a PLC controller (109), and the toluene sensor (106), the first solenoid valve (104) and the second solenoid valve (105) are electrically connected to the PLC controller (109) through wires.

3. The automatic toluene recovery water trap according to claim 1, wherein The end of the discharge pipe (102) away from the separation cylinder (101) is provided with a first flange plate, and the end of the discharge pipe (102) is fixedly connected to a recovery pipe in communication with an external toluene collection tank through the first flange plate. The end of the drain pipe (103) away from the separation cylinder (101) is provided with a second flange plate, and the end of the drain pipe (103) is fixedly connected to a drainage pipe in communication with an external water collection tank through the second flange plate.

4. The automatic toluene recovery water trap of claim 1, wherein The bottom end of the separation cylinder (101) is provided with a support assembly (200), the support assembly (200) includes a support ring (201) arranged at the bottom of the separation cylinder (101), and three support rods (202) fixedly arranged on the upper surface of the support ring (201) in a circumferential array, and the top ends of the three support rods (202) are fixedly connected to the surface of the separation cylinder (101).

5. The automatic toluene recovery water trap of claim 1, wherein The inner bottom wall of the ring-shaped cavity is provided with a ring-shaped opening corresponding to the mounting ring (204), and the lower surface of the support ring (201) is fixedly provided with a plurality of anti-skid pads (206) in a circumferential array.

6. The automatic toluene recovery water trap according to claim 5, wherein ​ 7. The automatic toluene recovery water trap according to claim 6, wherein The upper surface of the support ring (201) is fixed with a driving motor (207), and the output end of the driving motor (207) extends to the inside of the annular cavity and is fixed with a threaded column (208), the inner top wall and the inner bottom wall of the annular cavity are fixed with a plurality of limiting rods (209), a plurality of the limiting rods (209) and the threaded column (208) are arranged in a circumferential array inside the annular cavity, and the upper surface of the lifting ring (203) is respectively provided with a threaded hole in threaded connection with the outer surface of the threaded column (208) and a plurality of sliding holes in sliding connection with the surfaces of the plurality of limiting rods (209).

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