Process for purifying carbosulfan crude oil

Abstract

The present invention relates to the field of carbosulfan crude oil purification, and discloses a carbosulfan crude oil purification process, which comprises: 1, mixing raw materials, removing large particle impurities and insoluble solids through fine filtration to ensure that the crude oil is purer when entering the subsequent treatment step, and carrying out preliminary filtration; 2, feeding the crude oil into a purification device, heating to convert dissolved water in the crude oil into steam, separating free water, recovering water through a condensation system, simultaneously removing part of light impurities, and carrying out primary purification; step 3, boiling the crude oil at a relatively low temperature by reducing the pressure, separating out components with different boiling points, further removing high-boiling-point impurities and heavy polymers, and improving the purity of the crude oil; by arranging the connecting beam capable of reciprocating left and right, the heating part b, the stirring part, the vibrating strip and other parts can work cooperatively, so that the separation efficiency of water in crude oil is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of carbosulfan crude oil purification, and in particular to a process for carbosulfan crude oil purification. Background Art

[0002] Carbosulfan crude oil is a carbamate pesticide, which is widely used to control pests on various economic crops, such as cotton, citrus and rice. It has systemic, contact and stomach poisoning effects, and can effectively inhibit the acetylcholinesterase and carboxylesterase of pests, thereby destroying the pest's nerve conduction system.

[0003] In the production process, the presence of water has a great impact on the quality of crude oil, mainly because water will cause hydrolysis of some water-sensitive functional groups in carbosulfan crude oil, thereby reducing the content of effective ingredients. In addition, excessive water may cause chemical instability of the product and affect the subsequent processing. Therefore, dehydration treatment is essential.

[0004] In the heating and dehydration process, the heating temperature of crude oil is usually controlled within the range of 80-120°C. However, if the operation is continuously carried out within this temperature range, the dehydration efficiency is difficult to be effectively improved. If the heating temperature exceeds this range for a long time, it may cause volatilization losses of light hydrocarbons (such as naphtha, gasoline, etc.), causing economic losses and affecting the stability of the subsequent refining process. Therefore, how to significantly improve the dehydration efficiency without changing the heating temperature and avoid the adverse effects of excessive temperature on crude oil quality is a key issue that needs to be solved. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a process for purifying carbosulfan crude oil, aiming to alleviate the above problems at least to a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A process for purifying carbosulfan crude oil, the carbosulfan crude oil comprising:

[0008] Carbosulfan technical 60%-70%, xylene 15%-20%, cyclohexanone 5%-8%, propylene glycol methyl ether acetate 3%-5%, isobutyl alcohol 2%-4%, sodium dodecylbenzene sulfonate 0.5%-1%, antioxidant 0.2%-0.5%, metal chelating agent 0.1%-0.3%, defoaming agent 0.05%-0.1%, water 0.5%-1%;

[0009] The purification process comprises:

[0010] Step 1: Mix the raw materials and perform preliminary filtration to remove large particles and insoluble solids to ensure that the crude oil is purer when it enters the subsequent processing steps;

[0011] Step 2: Send the crude oil to the purification device, convert the dissolved water into steam and separate the free water by heating, recover the water through the condensation system, and remove some light impurities for preliminary purification;

[0012] Step 3: By reducing the pressure, the crude oil boils at a lower temperature, separating components with different boiling points, further removing high-boiling point impurities and heavy polymers, and improving the purity of the crude oil;

[0013] Step 4: Use adsorbent to treat crude oil to remove trace impurities such as pigments, mercaptans, organic acids, etc., improve the appearance and smell of crude oil, and enhance its quality;

[0014] Step 5: Use an ultrafiltration membrane system to remove extremely small colloidal particles and solid impurities to ensure that the crude oil reaches high purity standards and is suitable for subsequent applications;

[0015] Wherein, the purification device in step 2 comprises:

[0016] A purification box, wherein the purification box is provided with a steam outlet for connecting to a condenser;

[0017] A purification tank body is arranged in the purification box body, and a plurality of stirring parts are arranged in the purification tank body to disturb the crude oil liquid in the purification tank body;

[0018] The heating part a provided at the bottom of the purification tank is used to heat the crude oil in the purification tank from the bottom of the purification tank;

[0019] A connecting beam is arranged in the purification box, a heat-conducting frame is arranged at the bottom of the connecting beam, the heat-conducting frame is located in the purification tank, and a heating part b is arranged in the heat-conducting frame for heating the liquid in the liquid surface;

[0020] A plurality of vibration bars disposed in the purification box body, located at the bottom of the purification tank body;

[0021] A moving component provided between the purification box and the connecting beam, used to allow the connecting beam to reciprocate along a predetermined path;

[0022] A detection component disposed in the purification tank body, used to detect the liquid level in the purification tank body and adjust the position of the heat-conducting frame body so that the heat-conducting frame body adapts to the liquid level height;

[0023] When the connecting beam moves in direction a, the stirring part rotates, and the heating part b moves upward and leaves the heat-conducting frame. When the connecting beam moves in direction b to a preset position, the stirring part stops rotating.

[0024] When the connecting beam moves in direction b, the heating part b moves downward to fit into the heat-conducting frame, and the stirring part stops rotating;

[0025] Wherein, the connecting beam moves in direction a, and the plurality of vibration bars move in sequence and reset to impact the purification tank body.

[0026] Preferably, a connecting groove is provided in the purification box, the purification tank body is slidably connected in the connecting groove, and a spring a is connected between the purification tank body and the connecting groove;

[0027] The heating part a comprises a heat conducting plate connected to the bottom of the purification tank, and a heating wire is arranged inside the heat conducting plate;

[0028] The heating part b comprises a heat-conducting box body arranged on the top of the heat-conducting frame body, and electric heating wires are also arranged on both sides of the interior of the heat-conducting box body.

[0029] Preferably, the heat-conducting frame is slidably connected with a connecting plate, the heat-conducting box body is connected to the connecting plate, the heat-conducting frame is rotatably connected with a screw a, the connecting plate is threadedly connected to the screw a, the connecting beam is rotatably connected with a connecting shaft, and the screw a is slidably connected to the connecting shaft.

[0030] Preferably, one side of the connecting beam is rotatably connected to a gear a, a chain transmission mechanism is connected between the gear a and the connecting shaft, and one side inside the purification box is connected to a rack a meshing with the gear a.

[0031] Preferably, a limit rod is slidably connected to the connecting shaft, and a connecting round block is connected to the bottom of the limit rod. The connecting round block is rotatably connected to the screw a, and a spring rod is provided on the connecting round block. One end of the spring rod is semi-spherical, and the inner wall of the screw a is provided with a damping groove adapted to the semi-spherical end of the spring rod.

[0032] Preferably, the moving component includes a screw b rotatably connected to the purification box, the purification box is connected to a motor a, the drive shaft of the motor a is connected to the screw b, and the connecting beam is threadedly connected to the screw b.

[0033] Preferably, a connecting rod is connected to the bottom of the heat conduction plate, the vibration bar is slidably connected to the connecting rod, a spring b is connected between the vibration bar and the heat conduction plate, a fixed shaft is connected to the purification box, a rotating shaft is rotatably connected to the fixed shaft, a plurality of top contact rods are connected to the rotating shaft, and an oblique opening is provided on one side of the vibration bar.

[0034] Preferably, a gear b is provided on the rotating shaft, a rack b adapted to the gear b is slidably connected in the purification box, a spring c is connected between the rack b and the purification box, a traction rope is connected to one side of the connecting beam, one end of the traction rope passes through the purification box and is connected to the rack b, and a ratchet mechanism is provided between the gear b and the rotating shaft.

[0035] Preferably, the stirring part includes a motor b connected to one side of the purification tank body, a driving shaft of the motor b is connected to a stirring shaft, the stirring shaft extends into the purification tank body and is connected to a plurality of stirring blades, and a controller is provided on the purification tank body.

[0036] Preferably, the detection component includes floating plates slidably connected to both sides of the interior of the purification tank, and the heat-conducting frame is slidably connected between the two floating plates.

[0037] In summary, the present invention mainly has the following beneficial effects:

[0038] The present application sets a connecting beam that can move back and forth left and right, so that the heating part b, the stirring part and the vibration bar can work together, thereby effectively improving the separation efficiency of water in crude oil. Specifically, during the movement of the connecting beam, the cooperation between the stirring part and the vibration bar enables the water in the crude oil liquid to be better separated. When the connecting beam moves in direction a (left), the stirring part rotates and cooperates with the vibration bar to hit the purification tank, thereby enhancing the liquid disturbance effect, accelerating the analysis of water, and forming a precipitate or floating on the liquid surface. In addition, after the connecting beam moves to a predetermined position in direction a (left), the stirring part stops rotating to reduce the liquid disturbance so that the water can be analyzed out and float. At this time, the vibration bar continues to provide a small amplitude vibration, which helps to accelerate the precipitation of water, especially in the process of separating water from oil in the liquid, the vibration effect significantly improves the efficiency of water separation. When the connecting beam moves in direction b (right), the heating part b cooperates with the heat-conducting frame to provide an appropriate temperature (120-200°C) to accelerate the evaporation of water. By real-time monitoring of the liquid level, the detection component adjusts the position of the heat-conducting frame to ensure that it always maintains proper contact with the liquid surface, effectively preventing excessively high temperatures from contacting the crude oil and damaging its quality, while further improving the water separation effect. This design optimizes the coordination of heating, stirring and vibration, ensuring a significant improvement in the dehydration effect, and solving the problem of low dehydration efficiency in existing technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic structural diagram of the purification device of the present invention;

[0040] Figure 2 is another schematic diagram of the purification device structure of the present invention;

[0041] Figure 3 is another schematic diagram of the purification device structure of the present invention;

[0042] Figure 4 It is a schematic diagram of the connecting beam structure of the present invention;

[0043] Figure 5 It is a schematic structural diagram of the heating part b of the present invention;

[0044] Figure 6 yes Figure 5 A schematic diagram of the enlarged local structure at point A in the middle;

[0045] Figure 7 It is a schematic structural diagram of the heating part a of the present invention;

[0046] Figure 8 It is a schematic diagram of the fixed shaft structure of the present invention;

[0047] Fig. 9 It is a schematic diagram of the ratchet mechanism structure of the present invention;

[0048] Fig.10 It is a schematic diagram of the structure of the vibration bar of the present invention;

[0049] Fig.11 It is a schematic diagram of the structure of the detection component of the present invention.

[0050] Reference numerals:

[0051] 100, purification device; 101, purification box; 102, steam outlet; 103, purification tank; 104, stirring part; 105, heating part a; 106, connecting beam; 107, heat conduction frame; 108, heating part b; 109, vibration bar;

[0052] 200, connecting groove; 201, spring a; 202, heat conducting plate; 203, heating wire; 204, heat conducting box body;

[0053] 300, connecting plate; 301, lead screw a; 302, connecting shaft; 303, gear a; 304, chain transmission mechanism; 305, rack a; 306, limit rod; 307, connecting round block; 308, spring rod; 309, damping groove; 310, lead screw b; 311, motor a;

[0054] 400, connecting rod; 401, spring b; 402, fixed shaft; 403, rotating shaft; 404, top contact rod; 405, oblique opening; 406, gear b; 407, rack b; 408, spring c; 409, traction rope; 410, ratchet mechanism;

[0055] 500, motor b; 501, stirring shaft; 502, stirring blade; 503, controller; 504, floating plate. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] refer to Figure 1-Figure 11 , a process for purifying carbosulfan crude oil, comprising the following raw materials:

[0058] Carbosulfan technical: 60%-70% (mass fraction), as the core active ingredient, provides toxicity to pests;

[0059] Xylene: 15%-20% (mass fraction), a good organic solvent that can dissolve carbosulfan technical and give crude oil a certain fluidity;

[0060] Cyclohexanone: 5%-8% (mass fraction), enhances the solubility of some impurities and helps improve the stability and uniformity of the crude oil system;

[0061] Propylene glycol methyl ether acetate: 3%-5% (mass fraction), improves the volatility and drying speed of crude oil, and has a certain optimization effect on subsequent processing technology;

[0062] Isobutanol: 2%-4% (mass fraction), which can adjust the viscosity and surface tension of crude oil, making it easier to use in different application scenarios;

[0063] Sodium dodecylbenzene sulfonate: 0.5%-1% (mass fraction), as a surfactant, to promote the mixing and dispersion of various components;

[0064] Antioxidants (such as di-tert-butyl-p-cresol): 0.2%-0.5% (mass fraction), to prevent carbosulfan technical and other ingredients from being oxidized and degraded during storage and processing, thus extending the shelf life of the product;

[0065] Metal chelating agent (such as disodium ethylenediaminetetraacetic acid): 0.1%-0.3% (mass fraction), chelating the trace metal ions that may exist in crude oil, avoiding the influence of metal ions on the stability of carbosulfan and other chemical reactions caused by them;

[0066] Defoaming agent (such as polydimethylsiloxane): 0.05%-0.1% (mass fraction), to inhibit excessive foaming during the processing or mixing of crude oil, and ensure the smooth progress of the production process;

[0067] Water: 0.5%-1% (mass fraction). A small amount of water helps the interaction and dispersion of the various components in the initial stage of formula mixing. For example, auxiliary surfactants can better play their emulsification and dispersion functions and promote the initial stability of the system. However, it needs to be removed in the subsequent purification process to ensure the final quality of the crude oil.

[0068] It is worth noting that trace amounts of water may play a certain positive regulatory role in the interaction between the ingredients during the formula mixing stage. It can help the ingredients to mix and disperse better to a certain extent, which is conducive to forming a more stable system. At this stage, water is involved as an auxiliary ingredient in order to optimize the physical and chemical properties of the formula. The final crude carbosulfan product needs to meet specific quality standards, such as high purity and good stability. A small amount of water is added in the early stage for formula optimization, but if it is not removed, water will have many adverse effects on product quality, such as affecting efficacy, causing stratification, and breeding microorganisms. Therefore, the dehydration step is a key link to ensure that product quality meets the requirements, which eliminates potential problems that may be caused by the addition of water in the early stage.

[0069] To this end, a process for purifying carbosulfan crude oil also includes:

[0070] Step 1: Mix the raw materials and perform preliminary filtration to remove large particles and insoluble solids to ensure that the crude oil is purer when it enters the subsequent processing steps;

[0071] Step 2: The crude oil is sent to the purification device 100, where the dissolved water is converted into steam and free water is separated by heating, and the water is recovered by the condensation system, while some light impurities are removed for preliminary purification;

[0072] Step 3: By reducing the pressure, the crude oil boils at a lower temperature, separating components with different boiling points, further removing high-boiling point impurities and heavy polymers, and improving the purity of the crude oil;

[0073] Step 4: Use adsorbent to treat crude oil to remove trace impurities such as pigments, mercaptans, organic acids, etc., improve the appearance and smell of crude oil, and enhance its quality;

[0074] Step 5: Use an ultrafiltration membrane system to remove extremely small colloidal particles and solid impurities to ensure that the crude oil reaches high purity standards and is suitable for subsequent applications;

[0075] Crude oil includes

[0076] Wherein, the purification device 100 in step 2 comprises:

[0077] A purification box 101 is provided with a steam outlet 102 for connecting to a condenser;

[0078] A purification tank 103 is disposed in the purification box 101, and a plurality of stirring parts 104 are disposed in the purification tank 103 for disturbing the crude oil liquid in the purification tank 103;

[0079] The heating part a105 provided at the bottom of the purification tank 103 is used to heat the crude oil in the purification tank 103 from the bottom of the purification tank 103;

[0080] A connecting beam 106 is arranged in the purification box 101, and a heat-conducting frame 107 is arranged at the bottom of the connecting beam 106. The heat-conducting frame 107 is located in the purification tank 103, and a heating part b108 is arranged in the heat-conducting frame 107 for heating the liquid in the liquid surface;

[0081] A plurality of vibration bars 109 provided in the purification box 101 are located at the bottom of the purification tank 103;

[0082] A moving component provided between the purification box 101 and the connecting beam 106, used to allow the connecting beam 106 to reciprocate along a predetermined path;

[0083] The detection component disposed in the purification tank 103 is used to detect the liquid level in the purification tank 103 and adjust the position of the heat-conducting frame 107 so that the heat-conducting frame 107 can adapt to the liquid level;

[0084] When the connecting beam 106 moves in direction a, the stirring part 104 rotates, and the heating part b108 moves upward and leaves the heat-conducting frame 107. When the connecting beam 106 moves in direction b to a preset position, the stirring part 104 stops rotating.

[0085] When the connecting beam 106 moves in direction b, the heating part b108 moves downward to fit into the heat-conducting frame 107, and the stirring part 104 stops rotating;

[0086] The connecting beam 106 moves in direction a, and the multiple vibration bars 109 move in sequence and reset to impact the purification tank 103;

[0087] By setting the purification tank 103, when in use, the operator can pour the crude oil liquid that needs to be purified from the purification box 101 into the purification tank 103. The detection component set in the purification tank 103 can detect the liquid level in the purification tank 103, and adjust the position of the heat-conducting frame 107 in real time, and adjust the position of the heat-conducting frame 107 in real time to prevent the heat-conducting frame 107 from excessively penetrating into the liquid and unable to contact the water on the liquid surface. During operation, the heating part a105 and the heating part b108 can be turned on, and the heating part a105 heats the crude oil liquid from the bottom of the purification tank 103. The heating temperature can be between 80-120°C, and the dissolved water is converted into water vapor by heating, and the separation of free water is promoted. The water vapor can enter the condenser from the steam outlet 102 at the top of the purification box 101, cool and condense into water in the condenser, and the condensed water is separated and collected from the system. This process helps to reduce the water content in crude oil and avoid the adverse effects of water on subsequent processing equipment and chemical reactions. At the same time, by controlling the heating temperature between 80-120°C, it can ensure that the water evaporates effectively without excessive volatilization of light hydrocarbon components, thereby ensuring the quality of crude oil. The movable component can move the position of the connecting beam 106 back and forth. When the connecting beam 106 moves in direction a (left), the stirring part 104 rotates, and the heating part b108 moves upward and leaves the heat-conducting frame 107. When the connecting beam 106 moves in direction b to a preset position, the stirring part 104 stops rotating. The liquid level height is erratic. As the stirring proceeds, the fluidity of the liquid increases, causing the liquid level to change all the time. At this time, the heating part b108 is moved upward and out of the heat-conducting frame 107 to prevent the excessively high temperature of the heating part b108 from contacting the crude oil liquid, to prevent the excessively high temperature of the heating part b108 from having an adverse effect on the crude oil liquid, to avoid the volatilization of light hydrocarbons or the damage to the quality of the crude oil due to excessive temperature. When the connecting beam 106 moves in direction a (left) to the preset position (the middle position of the preset path), the stirring part 104 stops rotating. When the stirring part 104 is in a stationary state, the disturbance of the liquid is reduced, so that water can be separated out and float on the surface of the crude oil liquid. In addition, when the connecting beam 106 moves in direction a (left), the multiple vibration bars 109 can be moved in sequence and reset to hit the purification tank body 103. When the stirring part 104 rotates, the vibration bars 109 hit the purification tank body 103 to provide a small amplitude vibration to the purification tank body 103, which can enhance the disturbance effect on the liquid. After the stirring part 104 stops rotating, the vibration bars 109 hit the purification tank body 103 to provide a small amplitude vibration to the purification tank body 103. The vibration helps to accelerate the precipitation of water, especially in the process of separating water and oil in the liquid. By applying a small amplitude vibration to the purification tank body 103, water is precipitated from the crude oil liquid and forms a precipitate. Specifically, when the vibration bars 109 hit the purification tank body 103, the fluidity of the liquid can be improved, making it easier to separate the water in the crude oil from the oil.Under the action of gravity, water will be separated from crude oil, and gradually gather and precipitate to the bottom of the liquid or float on the surface of the liquid. Vibration can also help reduce the adhesion and aggregation of water in the liquid, making the water molecules more independent in the liquid and promoting their rapid sedimentation or floating. Vibration further enhances the efficiency of water analysis through the synergistic effect with the stirring part 104. After the connecting beam 106 moves to the extreme position in direction a (left), it starts to move in direction b (right). At this time, the heating part b108 moves downward to cooperate with the heat-conducting frame 107, and the stirring part 104 stops rotating. The temperature generated by the heating part b108 can be between 120-200°C, and the heat is effectively transferred to the crude oil liquid through the heat-conducting frame 107. Under the action of the detection component, the heat-conducting frame 107 is adaptively adjusted according to the liquid level height to ensure that it always adapts to the liquid level. At this time, when the water precipitated from the surface of the crude oil liquid contacts the heat-conducting frame 107, the high temperature of the heat-conducting frame 107 can further accelerate the evaporation process of the water, effectively improving the separation efficiency and effect of water and crude oil. The present application can effectively improve the separation efficiency of water in the butansulfuron crude oil through the heating, stirring and vibration mechanism of reasonable design. In the heating process of the crude oil liquid, the bottom heating part a105 is used to transfer heat with the heating part b108 matched with the heat-conducting frame 107 to ensure that the dissolved water in the crude oil is converted into water vapor and separated. By real-time detection of the liquid level height of the crude oil liquid, the position of the heat-conducting frame 107 is adjusted to avoid excessive penetration into the liquid, ensuring that the heating process does not affect the quality of the crude oil. In addition, the synergistic effect of the stirring part 104 and the vibration bar 109 effectively accelerates the water analysis in the liquid, optimizes the efficiency of water separation, and solves the problem that the dehydration efficiency is difficult to be effectively improved in the dehydration process in the prior art.

[0088] As a further solution of the present invention, a connection groove 200 is provided in the purification box 101, and the purification tank 103 is slidably connected in the connection groove 200, and a spring a201 is connected between the purification tank 103 and the connection groove 200;

[0089] The heating part a105 includes a heat conducting plate 202 connected to the bottom of the purification tank 103, and a heating wire 203 is arranged inside the heat conducting plate 202;

[0090] The heating part b108 includes a heat-conducting box body 204 disposed on the top of the heat-conducting frame body 107, and electric heating wires 203 are also disposed on both sides of the interior of the heat-conducting box body 204;

[0091] By providing the connection groove 200, the purification tank body 103 is arranged in the connection groove 200, and the spring a201 is added, a certain displacement amount can be provided for the purification tank body 103 to cooperate with the impact of the vibration bar 109 on the purification tank body 103. The heating part a105 is combined with the electric heating wire 203 through the heat conduction plate 202 to provide a uniform heating effect, ensuring that the crude oil liquid is fully heated from the bottom and the dissolved water is effectively converted into water vapor. The heating part b108 heats the water on the surface of the crude oil liquid through the electric heating wire 203 in the heat conduction box body 204.

[0092] As a further solution of the present invention, a connecting plate 300 is slidably connected to the heat-conducting frame 107, the heat-conducting box body 204 is connected to the connecting plate 300, a lead screw a301 is rotatably connected to the heat-conducting frame 107, the connecting plate 300 is threadedly connected to the lead screw a301, a connecting shaft 302 is rotatably connected to the connecting beam 106, and the lead screw a301 is slidably connected to the connecting shaft 302;

[0093] By setting the lead screw a301, the lead screw a301 can limit the position of the heat-conducting box body 204 on the heat-conducting frame 107 through the connecting plate 300. Specifically, during the dehydration operation, when the liquid level gradually becomes lower, the detection component synchronously moves the position of the heat-conducting frame 107 downward, and the heat-conducting frame 107 can drive the lead screw a301 to move downward. The lead screw a301 slides at the bottom of the connecting shaft 302, and the lead screw a301 allows the heat-conducting box body 204 to move together through the connecting plate 300 to ensure that when the liquid level and the height of the heat-conducting frame 107 change, the heat-conducting box body 204 can change with the change of the heat-conducting frame 107, so that the heat-conducting box body 204 is always in a suitable position relative to the heat-conducting frame 107. In addition, when the connecting beam 106 moves in direction a (left), the lead screw a301 can be rotated to allow the connecting plate 300 to move upward through the force of the thread. The upward movement of the connecting plate 300 can drive the heat-conducting box body 204 to leave the heat-conducting frame body 107 and no longer transfer heat to the heat-conducting frame body 107, so as to avoid the problem that when the stirring part 104 rotates and greatly disturbs the liquid, the excessively high temperature of the heat-conducting frame body 107 contacts the crude oil for a long time, thereby damaging the quality of the crude oil.

[0094] As a further solution of the present invention, a gear a303 is rotatably connected to one side of the connecting beam 106, a chain transmission mechanism 304 is connected between the gear a303 and the connecting shaft 302, and a rack a305 meshing with the gear a303 is connected to one side of the interior of the purification box 101;

[0095] By setting the gear a303 and the rack a305, when the connecting beam 106 moves, the gear a303 can rotate under the action of the rack a305, and the connecting shaft 302 can be rotated through the chain transmission mechanism 304. The connecting shaft 302 can transmit the rotational driving force to the screw a301, so that when the connecting beam 106 moves in direction a (left), the heat-conducting box body 204 can move upward and leave the heat-conducting frame body 107, and when the connecting beam 106 moves in direction b (right), the heat-conducting box body 204 can move downward and cooperate with the heat-conducting frame body 107, so as to transfer heat to the heat-conducting frame body 107.

[0096] As a further solution of the present invention, a limit rod 306 is slidably connected to the connecting shaft 302, a connecting round block 307 is connected to the bottom of the limit rod 306, the connecting round block 307 is rotatably connected to the lead screw a301, a spring rod 308 is provided on the connecting round block 307, one end of the spring rod 308 is semi-spherical, and a damping groove 309 adapted to the semi-spherical end of the spring rod 308 is opened on the inner wall of the lead screw a301;

[0097] By setting a limit rod 306, when the connecting shaft 302 rotates, the connecting circle 307 can be rotated through the limit rod 306, and the spring rod 308 and the damping groove 309 can form a certain friction force. When the connecting circle 307 rotates, the friction force formed by the spring rod 308 and the damping groove 309 can be used to rotate the lead screw a301. When the connecting beam 106 moves a certain distance, the lead screw a301 rotates to allow the connecting plate 300 and the heat-conducting box body 204 to move to the extreme position, and the rotation of the lead screw a301 is restricted. At this time, when the connecting shaft 302 continues to rotate, it can overcome the potential energy of the spring rod 308, and the spring rod 308 is disengaged from the damping groove 309, thereby avoiding excessive movement and unnecessary operation. When the connecting beam 106 subsequently moves in the opposite direction, the spring rod 308 cooperates with the damping groove 309 again due to its own potential energy, and can promptly rotate the screw a301 again to move the position of the heat-conducting box body 204. Through this design, the accuracy of each position adjustment can be guaranteed.

[0098] As a further solution of the present invention, the moving part includes a lead screw b310 rotatably connected to the purification box 101, a motor a311 is connected to the purification box 101, a drive shaft of the motor a311 is connected to the lead screw b310, and the connecting beam 106 is threadedly connected to the lead screw b310;

[0099] By setting the motor a311, the motor a311 can provide a rotational driving force for the screw b310 to allow the connecting beam 106 to move linearly along the screw b310. When used, the timing of the forward and reverse rotation of the screw b310 can be properly controlled to control the connecting beam 106 to move in the corresponding direction.

[0100] As a further solution of the present invention, a connecting rod 400 is connected to the bottom of the heat conducting plate 202, the vibration bar 109 is slidably connected to the connecting rod 400, a spring b401 is connected between the vibration bar 109 and the heat conducting plate 202, a fixed shaft 402 is connected to the purification box 101, a rotating shaft 403 is rotatably connected to the fixed shaft 402, a plurality of top contact rods 404 are connected to the rotating shaft 403, and an oblique opening 405 is opened on one side of the vibration bar 109;

[0101] By setting the spring b401, the spring b401 can limit the position of the vibration bar 109. When the connecting beam 106 moves in direction a (left), multiple rotating shafts 403 can be rotated from left to right in sequence. When the rotating shaft 403 rotates, it can drive the top contact rod 404 thereon to rotate. The top contact rod 404 rotates with the fixed shaft 402 as the center of the circle, and can contact the oblique opening 405 of the vibration bar 109 and touch the oblique opening 405. The vibration bar 109 can be displaced by the force and stretch the spring b401. When the top contact rod 404 leaves the vibration bar 109, the vibration bar 109 is reset by the force of the spring b401 and hits the heat conducting plate 202, so as to achieve the purpose of vibrating the purification tank body 103 with a small amplitude.

[0102] As a further solution of the present invention, a gear b406 is provided on the rotating shaft 403, a rack b407 adapted to the gear b406 is slidably connected in the purification box 101, a spring c408 is connected between the rack b407 and the purification box 101, a traction rope 409 is connected to one side of the connecting beam 106, one end of the traction rope 409 passes through the purification box 101 and is connected to the rack b407, and a ratchet mechanism 410 is provided between the gear b406 and the rotating shaft 403;

[0103] By setting the spring c408, in the initial state, the spring c408 is in a compressed state, and when the connecting beam 106 moves to the left, the rack b407 can be gradually released through the traction rope 409, and the spring c408 releases the potential energy, allowing the rack b407 to slide in the purification box 101 and allow the gear b406 to rotate. The rotation of the gear b406 can allow the rotating shaft 403 to rotate through the ratchet mechanism 410, thereby achieving the purpose of vibrating the purification tank 103, and subsequently when the connecting shaft 302 moves to the right, the rack b407 can be pulled by the traction rope 409, and the rack b407 resets and gradually compresses the spring c408. The rack b407 allows the gear b406 to rotate when it resets, and the gear b406 idles on the rotating shaft 403 through the ratchet mechanism 410, thereby preventing the purification tank 103 from vibrating and affecting the separation of moisture when the heat-conducting frame 107 evaporates the moisture on the surface of the liquid.

[0104] As a further solution of the present invention, the stirring part 104 includes a motor b500 connected to one side of the purification tank 103, a stirring shaft 501 is connected to the driving shaft of the motor b500, the stirring shaft 501 extends into the purification tank 103 and is connected to a plurality of stirring blades 502, and a controller 503 is provided on the purification box 101;

[0105] By setting the motor b500, the driving shaft of the motor b500 drives the stirring shaft 501 to rotate, and then drives the multiple stirring blades 502 to stir the crude oil liquid. The design of the stirring part 104 effectively improves the mixing efficiency of the components in the liquid, especially in the process of water separation, the disturbance of the liquid is enhanced by stirring, and the separation of water from the crude oil is promoted. In addition, the motor a311 and the motor b500 can be connected to the controller 503. When the connecting beam 106 moves in the direction a (left), the controller 503 controls the rotation of the lead screw b310 through the motor a311, drives the connecting beam 106 to move forward, and rotates the stirring part 104, so as to evenly stir the crude oil liquid in the purification tank 103. During this process, the heating part b108 moves upward and away from the heat-conducting frame 107 to prevent the excessive temperature of the heating part b108 from contacting the crude oil liquid, and to prevent the volatilization of light hydrocarbons or excessive temperature from damaging the quality of the crude oil. When the connecting beam 106 moves in direction b (right) to a preset position (the middle position of the lead screw a301 path), the controller 503 stops the operation of the motor b500 to create favorable conditions for the evaporation of water on the liquid surface. Through the intelligent adjustment of the controller 503, the crude oil purification process is optimized and the water separation efficiency is improved.

[0106] As a further solution of the present invention, the detection component includes floating plates 504 slidably connected to both sides of the interior of the purification tank 103, and the heat-conducting frame 107 is slidably connected between the two floating plates 504;

[0107] By providing the floating plate 504 , the liquid level inside the purification tank 103 can be monitored in real time, and the buoyancy of the floating plate 504 can ensure that the position of the heat-conducting frame 107 can be dynamically adjusted as the liquid level changes.

[0108] 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 process for purifying crude oil using carbosulfan, characterized in that: The carbosulfan crude oil comprises: Carbosulfan technical 60%-70%, xylene 15%-20%, cyclohexanone 5%-8%, propylene glycol methyl ether acetate 3%-5%, isobutyl alcohol 2%-4%, sodium dodecylbenzene sulfonate 0.5%-1%, antioxidant 0.2%-0.5%, metal chelating agent 0.1%-0.3%, defoaming agent 0.05%-0.1%, water 0.5%-1%; The process for purifying the carbosulfan crude oil comprises the following steps: Step 1: Mix the raw materials and remove large particles and insoluble solids through fine filtration to ensure that the crude oil is purer when entering the subsequent processing steps, and perform preliminary filtration; Step 2: Send the crude oil to the purification device, convert the dissolved water into steam and separate the free water by heating, recover the water through the condensation system, and remove some light impurities for preliminary purification; Step 3: By reducing the pressure, the crude oil boils at a lower temperature, separating components with different boiling points, further removing high-boiling point impurities and heavy polymers, and improving the purity of the crude oil; Step 4: Use adsorbent to treat crude oil to remove trace impurities such as pigments, mercaptans, organic acids, etc., improve the appearance and smell of crude oil, and enhance its quality; Step 5: Use an ultrafiltration membrane system to remove extremely small colloidal particles and solid impurities to ensure that the crude oil reaches high purity standards and is suitable for subsequent applications; Wherein, the purification device in step 2 comprises: A purification box, wherein the purification box is provided with a steam outlet for connecting to a condenser; A purification tank body is arranged in the purification box body, and a plurality of stirring parts are arranged in the purification tank body to disturb the crude oil liquid in the purification tank body; The heating part a provided at the bottom of the purification tank is used to heat the crude oil in the purification tank from the bottom of the purification tank; A connecting beam is arranged in the purification box, a heat-conducting frame is arranged at the bottom of the connecting beam, the heat-conducting frame is located in the purification tank, and a heating part b is arranged in the heat-conducting frame for heating the liquid in the liquid surface; A plurality of vibration bars disposed in the purification box body, located at the bottom of the purification tank body; A moving component provided between the purification box and the connecting beam, used to allow the connecting beam to reciprocate along a predetermined path; A detection component disposed in the purification tank body, used to detect the liquid level in the purification tank body and adjust the position of the heat-conducting frame body so that the heat-conducting frame body adapts to the liquid level height; When the connecting beam moves in direction a, the stirring part rotates, and the heating part b moves upward and leaves the heat-conducting frame. When the connecting beam moves in direction b to a preset position, the stirring part stops rotating. When the connecting beam moves in direction b, the heating part b moves downward to fit into the heat-conducting frame, and the stirring part stops rotating; Wherein, the connecting beam moves in direction a, and the plurality of vibration bars move in sequence and reset to impact the purification tank body.

2. A process for purifying crude oil using carbosulfan according to claim 1, characterized in that: A connecting groove is provided in the purification box body, the purification tank body is slidably connected in the connecting groove, and a spring a is connected between the purification tank body and the connecting groove; The heating part a comprises a heat conducting plate connected to the bottom of the purification tank, and a heating wire is arranged inside the heat conducting plate; The heating part b comprises a heat-conducting box body arranged on the top of the heat-conducting frame body, and electric heating wires are also arranged on both sides of the interior of the heat-conducting box body.

3. A process for purifying crude oil using carbosulfan according to claim 2, characterized in that: The heat-conducting frame is slidably connected with a connecting plate, the heat-conducting box is connected to the connecting plate, the heat-conducting frame is rotatably connected with a lead screw a, the connecting plate is threadedly connected to the lead screw a, the connecting beam is rotatably connected with a connecting shaft, and the lead screw a is slidably connected to the connecting shaft.

4. A process for purifying crude oil using carbosulfan according to claim 3, characterized in that: One side of the connecting beam is rotatably connected to a gear a, a chain transmission mechanism is connected between the gear a and the connecting shaft, and one side of the interior of the purification box is connected to a rack a meshing with the gear a.

5. A process for purifying crude oil using carbosulfan according to claim 3, characterized in that: A limit rod is slidably connected to the connecting shaft, and a connecting round block is connected to the bottom of the limit rod. The connecting round block is rotatably connected to the screw a. A spring rod is provided on the connecting round block, and one end of the spring rod is semi-spherical. The inner wall of the screw a is provided with a damping groove adapted to the semi-spherical end of the spring rod.

6. A process for purifying crude oil using carbosulfan according to claim 1, characterized in that: The moving part includes a lead screw b rotatably connected to the purification box body, the purification box body is connected to a motor a, the driving shaft of the motor a is connected to the lead screw b, and the connecting beam is threadedly connected to the lead screw b.

7. A process for purifying crude oil using carbosulfan according to claim 2, characterized in that: A connecting rod is connected to the bottom of the heat conducting plate, the vibration bar is slidably connected to the connecting rod, a spring b is connected between the vibration bar and the heat conducting plate, a fixed shaft is connected to the purification box, a rotating shaft is rotatably connected to the fixed shaft, a plurality of top contact rods are connected to the rotating shaft, and an oblique opening is opened on one side of the vibration bar.

8. A process for purifying crude oil using carbosulfan according to claim 7, characterized in that: A gear b is provided on the rotating shaft, a rack b adapted to the gear b is slidably connected in the purification box, a spring c is connected between the rack b and the purification box, a traction rope is connected to one side of the connecting beam, one end of the traction rope passes through the purification box and is connected to the rack b, and a ratchet mechanism is provided between the gear b and the rotating shaft.

9. A process for purifying crude oil using carbosulfan according to claim 1, characterized in that: The stirring part includes a motor b connected to one side of the purification tank body, a driving shaft of the motor b is connected to a stirring shaft, the stirring shaft extends into the purification tank body and is connected to a plurality of stirring blades, and a controller is provided on the purification box body.

10. A process for purifying carbosulfan crude oil according to claim 1, characterized in that: The detection component comprises floating plates slidably connected to both sides of the interior of the purification tank, and the heat-conducting frame is slidably connected between the two floating plates.

Images