A pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials

Abstract

The present invention discloses a pretreatment agent dispersing and mixing device for pretreatment processing of petroleum raw materials, which relates to the technical field of stirring and mixing, and includes a stirring tank, which is arranged horizontally, one side of the stirring tank is connected to an upstream device for feeding petroleum, and the other side of the stirring tank is connected to a downstream device for discharging petroleum, and a feeding frame for feeding pretreatment agent is fixedly connected to the middle upper part of the stirring tank, and a rotating frame is rotatably connected in the feeding frame, and the rotating frame is fixedly connected to a first gear symmetrically distributed along the rotating frame, and the rotating frame is rotatably connected to a rotating drum symmetrically distributed along the rotating frame. The present invention drives the discharging rack to rotate through the pretreatment driving rotating drum, so that the pretreatment agent is uniformly dispersed and mixed into the petroleum, and after the first tank of petroleum, the left side of the petroleum is fed and the right side of the petroleum is discharged, and the operations of stirring the discharging rack and adding the pretreatment agent are carried out dynamically at the same time, so as to accelerate the efficiency of pretreatment of petroleum raw materials.

Description

Technical Field

[0001] The invention relates to the technical field of stirring and mixing, and in particular to a pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials. Background Art

[0002] In the early stages of oil refining, pretreatment agents (desulfurizers and denitrogenators) need to be incorporated into crude oil to remove impurities and optimize raw material quality.

[0003] In the process of continuous pretreatment of petroleum raw materials, the traditional reactor design is difficult to meet the high-efficiency requirements of continuous processing of petroleum raw materials due to its batch processing mode, affecting production capacity and efficiency, which directly limits the overall processing capacity and production efficiency. In contrast, although the horizontal mixing barrel can continuously add pretreatment agents, it is difficult to ensure the uniform distribution of pretreatment agents in the raw material flow, which may affect the quality of the final product and the consistency of the treatment effect.

[0004] Based on the above situation, the present invention proposes a pretreatment agent dispersing and mixing device for pretreatment processing of petroleum raw materials. Summary of the invention

[0005] In order to overcome the shortcoming that a horizontal stirring barrel is difficult to ensure uniform dispersion of a pretreatment agent in a raw material flow, the present invention provides a pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials.

[0006] A pretreatment agent dispersing and mixing device for pretreatment processing of petroleum raw materials comprises a stirring tank, which is arranged horizontally, one side of the stirring tank is connected to an upstream device for feeding petroleum, and the other side of the stirring tank is connected to a downstream device for discharging petroleum. A feeding frame for feeding pretreatment agent is fixedly connected to the middle upper part of the stirring tank, a rotating frame is rotatably connected in the feeding frame, a first gear symmetrically distributed along the rotating frame is fixedly connected to the rotating frame, a rotating drum symmetrically distributed along the rotating frame is rotatably connected to the rotating frame, a second gear is fixedly connected to one end of the rotating drum close to the first gear, and the second gear is meshed with the adjacent first gear, a fixed frame symmetrically distributed along the stirring tank is fixedly connected in the stirring tank, an end of the rotating drum away from the first gear is rotatably connected to the fixed frame, a discharging frame uniformly distributed in the horizontal direction is fixedly connected to the rotating drum, and a uniformly distributed one-way valve port is circumferentially arranged on the discharging frame, and a cone rod is slidably connected in the rotating drum close to the discharging port, and the cone rod is used to realize the progressive discharging of the pretreatment agent.

[0007] It is further explained that the diameter of the tapered rod gradually increases from an end close to the second gear to an end far away from the second gear.

[0008] Further description, it also includes a screw rod, which is threadedly connected to the fixed frame near the discharge port side, and a piston block is fixedly connected to the end of the screw rod, and the piston block is slidably connected to the fixed frame near the discharge port side. An air storage chamber is opened on the side near the piston block inside the fixed frame near the discharge port side, and a groove is opened at the end of the rotating cylinder near the discharge port side, and circumferentially distributed circular holes are opened in the groove. The gas in the air storage chamber first enters the groove, and then enters the rotating cylinder near the discharge port side through the circular holes, so as to push the conical rod to move.

[0009] Further description, it also includes a blocking frame symmetrically distributed along the feed frame, the blocking frame is used to block the adjacent second gear, thereby preventing the pretreatment agent from entering the rotating drum, the feed frame is slidably connected to a material welcoming frame symmetrically distributed along the feed frame, and the material welcoming frame is pushed to move when the oil flows, and the material welcoming frame is used to push the blocking frame, a spring is fixed between the material welcoming frame and the feed frame, and the feed frame is connected to a one-way valve pipe symmetrically distributed along the feed frame.

[0010] It is further explained that the retaining frame is provided with a guide groove, and the retaining frame is slidably connected to the material receiving frame through the guide groove.

[0011] It is further explained that the material receiving frame is arranged in a horizontal V-shape, and the concave side faces the side of the oil feed.

[0012] Further description, it also includes a bracket symmetrically distributed along the feed frame, the bracket is fixedly connected to the feed frame, the bracket is rotatably connected to two guide plates, the feed frame is slidably connected to the guide frame symmetrically distributed along the feed frame, the guide plate is slidably connected to the adjacent guide frame, the material receiving frame is fixedly connected to a fixed rod, and the fixed rod is used to push the adjacent guide frame to move.

[0013] It is further described that the guide frame is provided with a guide groove, and the guide frame is slidably connected to the adjacent fixing rod through the guide groove.

[0014] It is further explained that the angle between adjacent guide plates is set to range from 120° to 135°.

[0015] Further description, it also includes a first stirring frame and a second stirring frame, the first stirring frame and the second stirring frame are fixedly connected to each of the rotating drums, the first stirring frame and the second stirring frame are alternately spaced and the first stirring frame and the second stirring frame are directed in opposite directions, and are used to turbulent the petroleum and pretreated mixed liquid.

[0016] The beneficial effect is that the present invention drives the discharging rack to rotate through the pretreatment driving drum, so that the pretreatment agent is evenly dispersed and mixed into the petroleum, and after the first tank of petroleum, the left side petroleum feeding and the right side petroleum discharging as well as the stirring of the discharging rack and the addition of the pretreatment agent are realized dynamically and simultaneously, so as to accelerate the efficiency of the pretreatment of the petroleum raw materials.

[0017] In the dynamic treatment stage, the amount of pretreatment agent added is gradually reduced as it approaches the latter part of the mixing process, which helps to achieve progressive addition of pretreatment agent in the final mixing stage, avoid the formation of high concentration areas of pretreatment agent, and prevent product quality problems caused by excessive pretreatment agent concentration in local areas. While ensuring the mixing effect, the amount of pretreatment agent used is reasonably controlled, especially reducing the amount in the later stage of mixing, which can effectively save the cost of treatment agents, reduce the use of unnecessary chemical additives, and is more environmentally friendly.

[0018] The present invention can adjust the position of the cone rod according to actual conditions by adjusting the screw rod, thereby adjusting the position at the right side where the discharge amount of the pretreatment agent begins to be reduced.

[0019] In the static treatment stage of the first tank, the present invention can block the second gear through the blocking frame, so that the pretreatment agent cannot enter the rotating drum. Instead, the pretreatment agent is added into the petroleum through the one-way valve pipes located at the front and rear sides of the stirring tank, so that the pretreatment agent is evenly mixed into the petroleum statically located in the stirring tank. When the downstream equipment is turned on, the blocking frame is automatically opened, thereby automatically switching to the progressive feeding mode under dynamic treatment, and the operation is simple and convenient.

[0020] When the pretreatment agent flows out through the one-way valve pipe, the guide plate guides the pretreatment agent from the middle to the left and right sides to play a role of drainage, so that the pretreatment agent is more evenly mixed into the petroleum, and when the downstream equipment is opened, the guide plate automatically closes the one-way valve pipe to prevent the petroleum from blocking the pipe opening of the one-way valve pipe when the pretreatment agent does not flow out through the one-way valve pipe.

[0021] The invention uses the first stirring frame and the second stirring frame to turbulently mix the mixed liquid, thereby accelerating the uniform mixing of the mixed liquid of petroleum and the pretreatment agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of the stirring tank, feeding frame, rotating drum and other components of the present invention.

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the rotating frame, the first gear, the second gear and other components of the present invention.

[0025] Figure 4 It is a three-dimensional structural schematic diagram of the conical rod, screw rod, piston block and other components of the present invention.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating drum of the present invention.

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the retaining frame, material receiving frame, spring and other components of the present invention.

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the retaining frame, the material receiving frame and the one-way valve pipe and other components of the present invention.

[0029] Figure 8 It is a three-dimensional structural schematic diagram of the bracket, guide plate, guide frame and other components of the present invention.

[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the guide plate, guide frame, fixing rod and other components of the present invention.

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the first stirring frame, the second stirring frame and other components of the present invention.

[0032] The markings of the components in the accompanying drawings are as follows: 1: mixing tank, 2: feeding frame, 3: rotating frame, 4: first gear, 5: second gear, 6: rotating drum, 7: fixed frame, 8: discharging frame, 9: tapered rod, 10: screw, 11: piston block, 12: air storage chamber, 121: groove, 122: round hole, 13: baffle frame, 14: material receiving frame, 15: spring, 16: one-way valve tube, 17: bracket, 18: guide plate, 19: guide frame, 20: fixed rod, 21: first stirring frame, 22: second stirring frame. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiment 1: A pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials, such as Figure 1-Figure 3As shown, it includes a stirring tank 1, which is arranged horizontally. The left side of the stirring tank 1 is connected to the upstream equipment for feeding oil, and the right side of the stirring tank 1 is connected to the downstream equipment for discharging oil. A feeding frame 2 for feeding pretreatment agent is fixedly connected to the middle upper part of the stirring tank 1. A rotating frame 3 is rotatably connected in the feeding frame 2. When the pretreatment agent is fed, the rotating frame 3 is driven to rotate. The rotating frame 3 is fixedly connected to the first gear 4 symmetrically distributed along the left and right sides of the rotating frame 3. The rotating frame 3 is rotatably connected to the rotating drum 6 symmetrically distributed along the left and right sides of the rotating frame 3. The rotating frame 3 is connected to the rotating drum 6, and the rotating drum 6 is close to the first gear 4. A second gear 5 is fixedly connected to one end of the wheel 4, and the second gear 5 is meshed with the adjacent first gear 4 to drive the rotating drum 6 to rotate. A fixed frame 7 symmetrically distributed along the left and right sides of the stirring tank 1 is fixedly connected in the mixing tank 1, and one end of the rotating drum 6 away from the first gear 4 is rotatably connected to the adjacent fixed frame 7. Three discharging frames 8 uniformly distributed laterally are fixedly connected to the outer wall of the rotating drum 6. The discharging frames 8 are circumferentially provided with uniformly distributed one-way valve ports. A conical rod 9 is slidably connected to the rotating drum 6 near the discharging port along the left and right directions. The diameter of the conical rod 9 gradually increases from the left end to the right end, so as to realize the progressive discharging of the pretreatment agent.

[0035] First, the downstream equipment on the right side of the mixing tank 1 is closed, and then the upstream equipment on the left side of the mixing tank 1 is opened, so that the oil is input into the mixing tank 1 from the left side. After the mixing tank 1 is filled with oil, the input of oil is stopped, and an appropriate amount of liquid pretreatment agent is added through the feeding frame 2. Under the power of the pretreatment agent, the rotating frame 3 drives the first gear 4 to rotate, thereby driving the second gear 5 to rotate, and then driving the rotating drum 6 to rotate, and then driving the discharging frame 8 to rotate. The pretreatment agent flows into the rotating drum 6 from the feeding frame 2, and then is evenly dispersed and mixed into the oil through the one-way valve port of the discharging frame 8. After the pretreatment agent is dispersed and added to the first tank of oil and the stirring is completed, the downstream equipment is opened, and the continuous input and output of oil is started, so that after the first tank of oil, the left side oil feeding and the right side oil discharging, as well as the discharging frame 8 stirring and the pretreatment agent adding operations are dynamically carried out simultaneously, and the dynamic treatment can accelerate the efficiency of oil raw material pretreatment, because the pretreatment agent has been added to the oil on the left side through the one-way valve port rotating on the left side.

[0036] When the oil flows to the right, in order to avoid excessive addition of the pretreatment agent, it is necessary to gradually reduce the addition of the pretreatment agent on the right side. Specifically, the diameter of the conical rod 9 decreases from left to right, so that the distance between the conical rod 9 and the inner wall of the adjacent rotating drum 6 gradually decreases, so that the amount of pretreatment agent added gradually decreases from the side close to the oil feed port to the side close to the oil discharge port.

[0037] In this way, in the dynamic treatment stage, the amount of pretreatment agent added is gradually reduced as it approaches the latter part of the mixing process, which helps to achieve progressive addition of the pretreatment agent in the final mixing stage, avoid the formation of high concentration areas of pretreatment agent, and prevent product quality problems caused by excessive pretreatment agent concentration in local areas. While ensuring the mixing effect, the amount of pretreatment agent used is reasonably controlled, especially reducing the amount in the later stage of mixing, which can effectively save the cost of the treatment agent, reduce the use of unnecessary chemical additives, and is more environmentally friendly.

[0038] like Figure 4 and Figure 5 As shown, it also includes a screw rod 10, which is threadedly connected to the fixing frame 7 on the right side, and a piston block 11 is fixed to the bottom end of the screw rod 10, and the piston block 11 is slidably connected to the fixing frame 7 on the right side. An air storage chamber 12 is opened on the side of the fixing frame 7 on the right side near the piston block 11, and a groove 121 is opened at the right end of the right rotating cylinder 6, and circumferentially distributed circular holes 122 are opened in the groove 121. The gas in the air storage chamber 12 first enters the groove 121, and then enters the rotating cylinder 6 near the right side through the circular hole 122, so as to push the cone rod 9 to move.

[0039] By rotating the screw 10 forward and backward, the screw 10 drives the piston block 11 to slide up and down. When the piston block 11 slides downward, the gas in the gas storage chamber 12 enters the groove 121, and then enters the right part of the right rotating cylinder 6 through the circular hole 122 in the groove 121, and pushes the cone rod 9 to move to the left. When the piston block 11 slides upward, the cone rod 9 moves to the right under the action of the negative pressure of the gas. In this way, the position of the cone rod 9 can be adjusted according to the actual situation, so as to adjust the position on the right side to start reducing the discharge amount of the pretreatment agent.

[0040] Embodiment 2: Based on embodiment 1, Figure 6 and Figure 7 As shown, it also includes a baffle 13 symmetrically distributed along the front and rear sides of the feed frame 2, the baffle 13 is used to block the adjacent second gear 5, thereby preventing the pretreatment agent from entering the drum 6, the feed frame 2 is slidably connected along the left and right directions with a material receiving frame 14 symmetrically distributed along the front and rear sides of the feed frame 2, when the oil flows from left to right, the material receiving frame 14 is pushed to move rightward, the material receiving frame 14 is set to a horizontal V-shape, and the concave side faces the side of the oil feed, the baffle 13 is provided with a guide groove on the side close to the adjacent material receiving frame 14, the baffle 13 is slidably connected to the adjacent material receiving frame 14 through the guide groove, the material receiving frame 14 is used to push the baffle 13, thereby controlling the opening and closing of the baffle 13, a spring 15 is fixed between the material receiving frame 14 and the feed frame 2, and the feed frame 2 is connected with a one-way valve pipe 16 symmetrically distributed along the front and rear of the feed frame 2.

[0041] When adding the pretreatment agent to the first tank of oil, since the oil is statically located in the mixing tank 1, the method of gradually reducing the amount of the pretreatment agent as it approaches the rear section of the mixing process is not as efficient as uniformly adding the pretreatment agent. Therefore, in the static treatment stage, the second gear 5 can be blocked by the blocking frame 13, so that the pretreatment agent cannot enter the drum 6, but the pressure is diverted to the one-way valve pipe 16, so that the valve of the one-way valve pipe 16 is opened, so that the pretreatment agent is added to the oil through the one-way valve pipes 16 located at the front and rear sides of the mixing tank 1. In this way, the pretreatment agent can be uniformly mixed into the oil statically located in the mixing tank 1;

[0042] After the first tank of oil stops adding and the stirring is completed, the downstream equipment is turned on and switched to dynamic processing. The continuous input of oil will push the material receiving frame 14 to move to the right, and the spring 15 is compressed. The material receiving frame 14 pushes the baffle frame 13 to move through the guide groove of the baffle frame 13, so that the front and rear baffle frames 13 move away from each other, so that the second gear 5 is no longer blocked by the baffle frame 13. At this time, the one-way valve tube 16 is almost no longer under pressure and cannot be flushed open. In this way, the pretreatment agent enters the drum 6 and switches to the progressive feeding mode under dynamic processing.

[0043] like Figure 8 and Fig. 9 As shown, it also includes a bracket 17 symmetrically distributed along the front and back of the feed frame 2, the bracket 17 is fixedly connected to the feed frame 2, and two left and right guide plates 18 are rotatably connected to the bracket 17, and the angle range between adjacent guide plates 18 is set to 120-135°, and the feed frame 2 is slidably connected along the front and back directions with a guide frame 19 symmetrically distributed along the front and back sides of the feed frame 2, the guide plate 18 is slidably connected to the adjacent guide frame 19, and a fixed rod 20 is fixedly connected to the bottom of the material receiving frame 14, and a guide groove is opened on the side of the guide frame 19 close to the adjacent fixed rod 20, and the guide frame 19 is slidably connected to the adjacent fixed rod 20 through the guide groove, and the fixed rod 20 is used to push the adjacent guide frame 19 to move.

[0044] In the above process, when the pretreatment agent flows out through the one-way valve tube 16, the pretreatment agent is guided from the middle to the left and right sides by the guide plate 18, which plays a role of drainage, so that the pretreatment agent is more evenly mixed into the petroleum. After the first tank of petroleum stops adding and the stirring is completed, the downstream equipment is opened and switched to dynamic treatment. The material receiving frame 14 moves to the right, thereby driving the fixed rod 20 to move to the right. The fixed rod 20 pushes the guide frame 19 to move through the guide groove of the guide frame 19, so that the front and rear guide frames 19 move away from each other, so that the guide frame 19 moves the adjacent guide plate 18 toward the adjacent one-way valve tube 16 until the one-way valve tube 16 is closed by the two adjacent guide plates 18 to prevent the petroleum from blocking the pipe mouth of the one-way valve tube 16 when the pretreatment agent does not discharge through the one-way valve tube 16.

[0045] Embodiment 3: Based on embodiment 2, Fig.10 As shown, it also includes a first stirring frame 21 and a second stirring frame 22. The first stirring frame 21 and the second stirring frame 22 are both fixed to the outer wall of each rotating drum 6. The first stirring frame 21 and the second stirring frame 22 are alternately spaced and the directions of the first stirring frame 21 and the second stirring frame 22 are opposite, which are used to disturb the petroleum and the pretreated mixed liquid.

[0046] When the rotating drums 6 on the left and right sides rotate, they respectively drive the first stirring frame 21 and the second stirring frame 22 to rotate, so as to fully stir the oil and the pretreatment agent to make them more uniform. Moreover, since the first stirring frame 21 and the second stirring frame 22 have opposite directions, the mixed liquid is further disturbed, thereby accelerating the uniform mixing of the mixed liquid.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials, comprising a stirring tank (1), characterized in that: The stirring tank (1) is arranged horizontally. One side of the stirring tank (1) is connected to an upstream device for feeding petroleum. The other side of the stirring tank (1) is connected to a downstream device for discharging petroleum. A feeding frame (2) for feeding a pretreatment agent is fixedly connected to the middle upper part of the stirring tank (1). A rotating frame (3) is rotatably connected inside the feeding frame (2). The rotating frame (3) is fixedly connected to first gears (4) symmetrically distributed along the rotating frame (3). The rotating frame (3) is rotatably connected to a rotating drum (6) symmetrically distributed along the rotating frame (3). The rotating drum (6) is fixedly connected to one end close to the first gear (4). The second gear (5) is fixedly connected to the rotating drum (6). ) is meshed with the adjacent first gear (4); a fixed frame (7) symmetrically distributed along the stirring tank (1) is fixedly connected in the stirring tank (1); the end of the rotating drum (6) away from the first gear (4) is rotatably connected to the fixed frame (7); the rotating drum (6) is fixedly connected with a discharging frame (8) evenly distributed in the transverse direction; the discharging frame (8) is circumferentially provided with evenly distributed one-way valve ports; a conical rod (9) is slidably connected in the rotating drum (6) near the discharging port; the conical rod (9) is used to realize the progressive discharging of the pretreatment agent; the diameter of the conical rod (9) gradually increases from the end close to the second gear (5) to the end away from the second gear (5).

2. The pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 1, characterized in that: The invention also comprises a screw rod (10), wherein the screw rod (10) is threadedly connected to the fixing frame (7) on the side close to the discharge port, a piston block (11) is fixedly connected to the end of the screw rod (10), and the piston block (11) is slidably connected to the fixing frame (7) on the side close to the discharge port, an air storage chamber (12) is provided inside the fixing frame (7) on the side close to the piston block (11), a groove (121) is provided at the end of the rotating cylinder (6) on the side close to the discharge port, and circular holes (122) distributed circumferentially are provided in the groove (121), and the gas in the air storage chamber (12) first enters the groove (121), and then enters the rotating cylinder (6) on the side close to the discharge port through the circular holes (122), so as to push the conical rod (9) to move.

3. The pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 2, characterized in that: It also includes a baffle (13) symmetrically distributed along the feed frame (2), the baffle (13) is used to block the adjacent second gear (5), thereby preventing the pretreatment agent from entering the drum (6), the feed frame (2) is slidably connected to a material receiving frame (14) symmetrically distributed along the feed frame (2), and the material receiving frame (14) is pushed to move when the oil flows, and the material receiving frame (14) is used to push the baffle (13), a spring (15) is fixedly connected between the material receiving frame (14) and the feed frame (2), and the feed frame (2) is connected to a one-way valve pipe (16) symmetrically distributed along the feed frame (2).

4. The pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 3, characterized in that: The retaining frame (13) is provided with a guide groove, and the retaining frame (13) is slidably connected to the material receiving frame (14) via the guide groove.

5. The pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 4, characterized in that: The material receiving frame (14) is arranged in a transverse V-shape, with the concave side facing the side for feeding the petroleum.

6. The pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 5, characterized in that: It also includes a bracket (17) symmetrically distributed along the feed frame (2), the bracket (17) is fixedly connected to the feed frame (2), the bracket (17) is rotatably connected to two guide plates (18), the feed frame (2) is slidably connected to a guide frame (19) symmetrically distributed along the feed frame (2), the guide plate (18) is slidably connected to the adjacent guide frame (19), and the material receiving frame (14) is fixedly connected to a fixed rod (20), and the fixed rod (20) is used to push the adjacent guide frame (19) to move.

7. A pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 6, characterized in that: The guide frame (19) is provided with a guide groove, and the guide frame (19) is slidably connected to the adjacent fixing rod (20) via the guide groove.

8. The pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 7, characterized in that: The included angle between adjacent guide plates (18) is set to range from 120 to 135 degrees.

9. A pretreatment agent dispersing and mixing device for pretreatment of petroleum raw materials according to claim 8, characterized in that: The invention also comprises a first stirring frame (21) and a second stirring frame (22), wherein the first stirring frame (21) and the second stirring frame (22) are both fixedly connected to each of the rotating drums (6), the first stirring frame (21) and the second stirring frame (22) are alternately arranged at intervals and the first stirring frame (21) and the second stirring frame (22) are directed in opposite directions, and are used to disturb the mixed liquid of the petroleum and the pretreatment agent.

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