A mixing device and method for producing a polyolefin radiation cracking nucleating agent

Abstract

The present invention discloses a mixing device and method based on the production of polyolefin radiation cracking nucleating agent, and specifically relates to the technical field of preparation production. The mixing device based on the production of polyolefin radiation cracking nucleating agent comprises a mixing tank, and the top of the mixing tank is detachably mounted with an end cover, and a premixing chamber is added to the end cover. The present invention adopts a premixing chamber to premix each component raw material in advance, so that each component raw material completes a certain homogenization treatment in the initial stage, avoiding the problem of agglomeration and coagulation, and the connecting piece on the trigger component moves under the action of centrifugal force, and the received power is continuously transmitted to multiple action components through the trigger component, driving the multiple action components to complete the extrusion and conveying action, and finally the high-concentration stock solution is gradually slowly released to each liquid level height in the mixing tank by the reciprocating movement of the conveying component up and down, and contacts with the liquid injected in advance in the mixing tank to complete the rapid mixing work, thereby improving the mixing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of preparation production, in particular to a mixing device and method for producing a polyolefin radiation cracking nucleating agent. Background Art

[0002] Polyolefins are a type of polymer material obtained by addition polymerization of olefin monomers, such as polyethylene and polypropylene. These materials are widely used in daily life and industrial fields. In the processing and application of polyolefins, nucleating agents are mainly used to improve the crystallization properties and physical and mechanical properties of the materials.

[0003] Nucleating agent is a new functional additive suitable for incompletely crystalline plastics such as polyethylene and polypropylene. It changes the crystallization behavior of the resin, accelerates the crystallization rate, increases the crystallization density and promotes the refinement of the grain size, thereby shortening the molding cycle and improving the physical and mechanical properties of the product such as transparency, surface gloss, tensile strength, rigidity, heat deformation temperature, impact resistance and creep resistance. Nucleating agents are divided into liquid nucleating agents and powder nucleating agents. Liquid nucleating agents need to be mixed with a mixing device during production to ensure stable production of the nucleating agent.

[0004] A nucleating agent mixing system device is disclosed in the patent application with reference publication number CN213943000U. The mixing device adopts a design in which the stirring shaft and the mixing barrel are separated. The screw rod is driven by a servo motor to realize the separation and combination of the mixing barrel and the stirring shaft. The device is simple to use and convenient for cleaning the stirring shaft and the mixing barrel.

[0005] At present, most of the mixing devices on the market use motors and stirring blades to complete the mixing operation of the preparations. Therefore, the raw materials of each component of the mixing device are concentratedly fed into the mixing box through the feeding pipe. The raw materials of each component will accumulate in a local area in the mixing box, which prolongs the mixing cycle and affects the mixing effect. In addition, after some powdered raw materials are locally accumulated, they are prone to agglomeration, which affects the mixing accuracy of the raw materials of each component, resulting in unsatisfactory uniformity of the raw materials of each component in the finished product.

[0006] At the same time, the above-mentioned mixing device cannot quickly adapt to changes in the feeding position, and cannot evenly and quickly introduce the various component raw materials into the mixing box at various liquid level heights, which makes it easy for the preparation in the mixing tank to be stratified, resulting in the inability to fully and quickly mix the various component raw materials, which can easily affect the quality of the finished product. Summary of the invention

[0007] The object of the present invention is to provide a mixing device and method for producing a polyolefin radiation cracking nucleating agent to solve the above technical problems.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The present invention discloses a mixing device based on the production of polyolefin radiation cracking nucleating agent, comprising a mixing tank, a top of which is detachably provided with an end cover, a premixing chamber added to the end cover, a mixing mechanism installed in the premixing chamber, and the mixing mechanism correspondingly extends into the mixing tank for mixing and stirring, and a trigger feeding mechanism installed in the premixing chamber, the trigger feeding mechanism cooperates with the mixing mechanism, the trigger feeding mechanism is composed of a trigger component, a plurality of action components and two conveying components, the triggering and driving of the trigger component and the plurality of action components are completed by the mixing mechanism, the trigger component is correspondingly arranged at the bottom of the premixing chamber, the plurality of action components are evenly distributed in the premixing chamber and the mixing tank, the two conveying components are symmetrically arranged on both sides of the mixing tank, and the raw liquid premixed in the premixing chamber is actively conveyed to different liquid levels in the mixing tank by the trigger component, the plurality of action components and the two conveying components.

[0010] Furthermore, a top cover is detachably mounted on the top of the premixing chamber, and a plurality of No. 2 feed pipes communicating with the premixing chamber are arranged side by side on one side of the top cover.

[0011] Furthermore, the mixing mechanism includes a stirring motor installed on the top of the premixing chamber through a bracket, a stirring shaft is rotatably installed on the lower surface of the top cover, the bottom of the stirring shaft rotates through the end cover to extend into the mixing tank, and the top of the stirring shaft is transmission-connected to the stirring motor, a plurality of No. 1 stirring blades are detachably mounted on the outside of the stirring shaft and located in the mixing tank, and a plurality of No. 2 stirring blades are detachably mounted on the outside of the stirring shaft and located in the premixing chamber.

[0012] Furthermore, the trigger assembly includes an annular disk rotatably installed at the bottom of the premixing chamber, a plurality of guide grooves are arranged in a circular array on the lower surface of the annular disk, an annular friction disk is installed on the top of the annular disk, an inner gear ring is installed at the top of the annular friction disk, and two connecting parts are symmetrically installed on the outside of the stirring shaft through a bracket.

[0013] Furthermore, the two connecting parts both include a cross arm, and a sliding area is provided on the side of the cross arm away from the stirring shaft. A gravity arm is slidably engaged in the sliding area, and the front end of the gravity arm slides out of the sliding area. A No. 1 return spring is sleeved on the outside of the gravity arm, and an arc-shaped friction plate is removably installed on the end of the gravity arm away from the cross arm.

[0014] Furthermore, a telescopic zone is opened through one side of the gravity arm near the arc-shaped friction plate, a centrifugal block is slidably engaged in the telescopic zone, an arc-shaped tooth plate is installed on one side of the centrifugal block, and a No. 2 return spring is installed between the centrifugal block and the side wall of the telescopic zone.

[0015] Furthermore, multiple action components all include a conveying channel, a horizontal plate extends at the bottom of the inner wall of the premixing chamber, a lifting rod is slidably inserted on the horizontal plate, a guide wheel is installed on the top of the lifting rod through a bracket, an extrusion spring is sleeved on the outside of the lifting rod, the top of the guide wheel is in contact with the guide groove, a circular plate is arranged in the conveying channel, the side wall of the circular plate is in friction contact with the side wall of the conveying channel, a circulation area is opened through the center of the circular plate, a movable plate is installed on the upper surface of the circular plate, and multiple guide rods are arranged in a circular array on the lower surface of the movable plate, and an annular cavity is commonly connected at the bottom of the multiple conveying channels.

[0016] Furthermore, the two conveying components both include a concave seat installed on the inner wall of the mixing tank, a reciprocating screw is rotatably installed in the concave seat, a screw nut is slidably engaged on the concave seat, the screw nut is correspondingly sleeved on the outside of the reciprocating screw, and the screw nut is driven to reciprocate up and down under the transmission of the reciprocating screw, an electromagnetic clutch connected to the reciprocating screw is installed on the top of the concave seat, a power shaft is installed on the top of the electromagnetic clutch, and conveying nozzles are installed on both screw nuts.

[0017] Furthermore, two No. 1 synchronous wheels are sleeved on the outside of the stirring shaft, No. 2 synchronous wheels are sleeved on the power shafts of the two conveying components, and two synchronous belts are respectively sleeved between the two No. 1 synchronous wheels and the No. 2 synchronous wheels.

[0018] The present invention also provides a mixing method for producing a nucleating agent based on polyolefin radiation cracking, and the mixing method specifically comprises the following steps:

[0019] Step 1: First, feed each raw material into the premixing chamber in sequence;

[0020] Step 2: Under the premixing action of the mixing mechanism, the raw materials of each component are fully premixed into a high-concentration stock solution in the premixing chamber;

[0021] Step 3: After the premixing of the raw materials of each component is completed, the feeding mechanism is triggered to complete the power connection with the stirring shaft;

[0022] Step 4: The trigger component continuously transmits the received power to the multiple action components, driving the multiple action components to complete the extrusion and conveying action, thereby transferring the high-concentration stock solution in the premixing chamber to the conveying component;

[0023] Step 5: Finally, the high-concentration stock solution is gradually released to various liquid levels in the mixing tank by reciprocating the conveying component up and down.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention is provided with a mixing mechanism, and the component raw materials and part of the liquid are introduced into the premixing chamber through the No. 2 feed pipe, and then the stirring motor is started to drive the stirring shaft to rotate, and the No. 2 stirring blade is driven to rotate in the premixing chamber to complete the full premixing of the component raw materials, which is convenient for completing the rapid premixing of high-concentration raw materials, avoiding the problems of agglomeration and coagulation, and improving the production efficiency;

[0026] 2. The present invention is provided with a trigger assembly. With the assistance of the trigger feeding mechanism, after the premixing of the raw materials of each component is completed, it is only necessary to disconnect the electromagnet, and the connecting piece on the trigger assembly moves under the action of centrifugal force to complete the friction connection with the annular friction disk. In order to make the subsequent rotation more stable, the rotation speed of the stirring shaft is then increased to drive the connecting piece to complete the secondary locking, thereby realizing the power connection between the stirring shaft and the trigger assembly. After that, the received power is continuously transmitted to multiple action components through the trigger assembly, driving the multiple action components to complete the extrusion and conveying action;

[0027] 3. The present invention gradually releases high-concentration stock solution to various liquid levels in the mixing tank by reciprocating the conveying component up and down, and contacts with the liquid injected into the mixing tank in advance to complete rapid mixing, thereby improving the mixing efficiency, enabling the various component raw materials to be fully and quickly mixed, and improving production efficiency.

[0028] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the overall front view of the present invention;

[0030] Figure 2 It is the internal schematic diagram of the mixing tank of the present invention;

[0031] Figure 3 This is a schematic diagram of the connection between the premixing chamber and the stirring shaft of the present invention;

[0032] Figure 4 It is a schematic diagram of the mixing mechanism of the present invention;

[0033] Figure 5 It is a schematic diagram of the premixing chamber of the present invention;

[0034] Figure 6 This is a schematic diagram of the installation of the second stirring blade in the premixing chamber of the present invention;

[0035] Figure 7 This is a schematic diagram of installing the trigger assembly of the present invention in a premixing chamber;

[0036] Figure 8 A schematic diagram of the connection between the trigger component and the action component of the present invention;

[0037] Fig. 9 It is a schematic diagram of the distribution of the guide grooves on the annular disk of the present invention;

[0038] Fig.10 It is a schematic diagram of the action components of the present invention;

[0039] Fig.11 It is a schematic diagram of the distribution of the guide wheel and the guide groove of the present invention;

[0040] Fig.12 It is a schematic diagram of the distribution of the arc-shaped friction plate and the annular friction disc of the present invention;

[0041] Fig.13 It is a schematic diagram of the structure of the connector of the present invention;

[0042] Fig.14 It is a schematic diagram of the distribution of the plug rods and slots of the present invention.

[0043] In the figure: 1, mixing tank; 2, end cover; 3, premixing chamber; 4, top cover; 5, No. 2 feed pipe; 6, stirring motor; 7, stirring shaft; 8, No. 1 stirring blade; 9, No. 2 stirring blade; 10, annular disk; 11, guide groove; 12, annular friction disk; 13, inner gear ring; 14, connecting piece; 141, cross arm; 142, sliding area; 143, gravity arm; 144, electromagnet; 145, No. 1 return spring; 146, arc friction plate; 15, telescopic area; 16, centrifugal block; 17, arc tooth plate; 18, No. 2 return spring; 19. Adjustment area; 20. Slide plate; 21. Insert rod; 22. Spring No. 1; 23. Slot; 24. Wedge block; 25. Inclined surface; 26. Conveying channel; 27. Cross plate; 28. Lifting rod; 29. ​​Guide wheel; 30. Extrusion spring; 31. Round plate; 32. Flow zone; 33. Moving plate; 34. Guide rod; 35. Annular cavity; 36. Concave seat; 37. Reciprocating screw; 38. Screw nut; 39. Electromagnetic clutch; 40. Power shaft; 41. Conveying nozzle; 42. Synchronous wheel No. 1; 43. Synchronous wheel No. 2; 44. Synchronous belt. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] Embodiment 1: The present invention provides a technical solution: Figures 1 to 14 As shown, a mixing device based on the production of polyolefin radiation cracking nucleating agent includes a mixing tank 1, the top of the mixing tank 1 is detachably installed with an end cover 2 by bolts, a discharge pipe is connected and installed at the bottom of the mixing tank 1, a plurality of No. 1 feed pipes are arranged side by side on one side of the top of the end cover 2, and the plurality of No. 1 feed pipes are all connected with the mixing tank 1, a plurality of legs are arranged around the bottom of the mixing tank 1, and a ladder can be installed on one side of the mixing tank 1 to facilitate subsequent maintenance, a premixing chamber 3 is added to the end cover 2, a plurality of discharge pipes are connected and installed at the bottom of the premixing chamber 3, and electromagnetic valves for controlling the on-off of the plurality of discharge pipes are installed at the ends of the plurality of discharge pipes, which can assist in completing the discharge operation of the premixing chamber 3, and at the same time, the discharge pipe can be connected with the delivery nozzle 41 through a pipeline to complete the discharge action, and can be used in conjunction with the delivery channel 26 of the action component, and can be freely selected according to different working environments, in the premixing chamber 3. A mixing mechanism is installed, and the mixing mechanism extends into the mixing tank 1 for mixing and stirring. At the same time, a trigger feeding mechanism is installed in the premixing chamber 3. The trigger feeding mechanism cooperates with the mixing mechanism. The trigger feeding mechanism consists of a trigger component, multiple action components and two conveying components. The triggering drive of the trigger component and the multiple action components is completed by the mixing mechanism. The trigger component is correspondingly arranged at the bottom of the premixing chamber 3, and the multiple action components are evenly distributed in the premixing chamber 3 and the mixing tank 1. The two conveying components are symmetrically installed on both sides of the mixing tank 1. The premixed raw liquid in the premixing chamber 3 is actively conveyed to different liquid level heights in the mixing tank 1 through the trigger component, multiple action components and two conveying components. The top of the premixing chamber 3 is detachably installed with a top cover 4, and a plurality of No. 2 feed pipes 5 connected to the premixing chamber 3 are arranged side by side on one side of the top cover 4.

[0047] Among them, electrical components such as the stirring motor 6 and the electromagnetic clutch 39 are all connected to switches through wires, and the switches are electrically connected to a controller, and the specific structure of the controller is not limited.

[0048] Embodiment 2: Based on the mixing mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the mixing mechanism.

[0049] like Figures 4 to 6 As shown, the mixing mechanism includes a stirring motor 6 installed on the top of the premixing chamber 3 through a bracket, and the stirring motor 6 is correspondingly installed on the top cover 4. A stirring shaft 7 is rotatably installed on the lower surface of the top cover 4. The center of the stirring shaft 7 is hollow. The bottom of the stirring shaft 7 rotates through the end cover 2 and extends into the mixing tank 1. The top of the stirring shaft 7 is connected to the stirring motor 6 in a transmission manner. A plurality of first stirring blades 8 are detachably provided on the outside of the stirring shaft 7 and located in the mixing tank 1. A plurality of second stirring blades 9 are detachably provided on the outside of the stirring shaft 7 and located in the premixing chamber 3.

[0050] It is worth noting that: when premixing is carried out, a mixing mechanism is provided, and the liquid required for mixing is first fed into the mixing tank 1 in advance through the No. 1 feed pipe, and then the component raw materials and part of the liquid are introduced into the premixing chamber 3 through the No. 2 feed pipe 5, and then the stirring motor 6 is started to drive the stirring shaft 7 to rotate, and the No. 2 stirring blade 9 is driven to rotate in the premixing chamber 3 to complete the full premixing of the component raw materials, which is convenient for completing the rapid premixing of high-concentration raw materials and improving production efficiency.

[0051] Embodiment 3: Based on the trigger feeding mechanism provided in Embodiment 1, this embodiment provides a further technical solution for the trigger feeding mechanism.

[0052] like Figures 8 to 14 As shown, the trigger assembly includes an annular disk 10 rotatably mounted at the bottom of the premixing chamber 3, an annular track matching the annular disk 10 is opened on the inner wall of the premixing chamber 3, and a plurality of guide grooves 11 are arranged in a circular array on the lower surface of the annular disk 10, the cross section of the guide groove 11 is U-shaped, and the two sides of the inner wall of the guide groove 11 are inclined, and the plurality of guide grooves 11 form a wavy undulating track on the annular disk 10, an annular friction disk 12 is mounted on the top of the annular friction disk 10, an inner gear ring 13 is staggeredly mounted on the top of the annular friction disk 12, and two connectors 14 are symmetrically mounted on the outside of the stirring shaft 7 through a bracket, and the two connectors 14 are respectively connected with the annular friction disk 12 and the inner gear ring 13 to complete the power transmission;

[0053] It is worth noting that: when the power connection is carried out, a trigger component is provided. After the premixing of the high-concentration raw materials is completed, the electromagnet 144 is powered off, so that the gravity arm 143 is free, and then the synchronous belt 44 drives the two gravity arms 143 to rotate during the rotation of the stirring shaft 7 to generate centrifugal force. Since the reset strength provided by the No. 1 reset spring 145 for the gravity arm 143 is less than the reset strength provided by the No. 2 reset spring 18 for the centrifugal block 16, the arc-shaped friction plate 146 is first driven to overcome the elastic extension of the No. 1 reset spring 145 and frictionally contact with the annular friction disk 12, and the annular disk 10 is driven to follow the rotation with the help of the friction contact between the arc-shaped friction plate 146 and the annular friction disk 12 To complete the power output, in order to improve the stability of power transmission, the rotation speed of the stirring shaft 7 is increased, so that the friction between the arc-shaped friction plate 146 and the annular friction disk 12 is increased, and at the same time, the centrifugal block 16 is caused to overcome the elasticity of the second return spring 18 and displace, so that the arc-shaped tooth plate 17 is meshed with the inner gear ring 13, so that the power of the stirring shaft 7 is stably transmitted to the annular disk 10 via the two connecting pieces 14, which is conducive to the subsequent delivery of the raw liquid for the power component. At the same time, the technicians can freely adjust the meshing state of the arc-shaped tooth plate 17 and the inner gear ring 13 according to the processing requirements. After the subsequent raw liquid delivery is completed, it is only necessary to temporarily stop the stirring shaft 7 to reset the two connecting pieces 14;

[0054] In the embodiment of the present invention, the two connectors 14 both include a cross arm 141, a sliding area 142 is provided through the cross arm 141 on the side away from the stirring shaft 7, a gravity arm 143 is slidably engaged in the sliding area 142, an electromagnet 144 is hidden on the inner wall of the sliding area 142 close to the stirring shaft 7, an iron plate is provided on the side of the gravity arm 143 facing the electromagnet 144, and adsorption and fixation are completed by the cooperation of the electromagnet 144 and the iron plate, and a channel is provided in the cross arm 141 for convenience For subsequent threading, the front end of the gravity arm 143 slides out of the sliding area 142, and a No. 1 return spring 145 is sleeved on the outside of the gravity arm 143. The elastic strength of the No. 1 return spring 145 can be freely replaced according to needs. The No. 1 return spring 145 is located between the gravity arm 143 and the sliding area 142. The end of the gravity arm 143 away from the cross arm 141 is detachably installed with an arc-shaped friction plate 146, and the arc-shaped friction plate 146 cooperates with the annular friction disc 12 to complete the friction connection;

[0055] Among them, a telescopic area 15 is penetrated and opened on one side of the gravity arm 143 near the arc-shaped friction plate 146, a centrifugal block 16 is slidably engaged in the telescopic area 15, and an arc-shaped toothed plate 17 is installed on one side of the centrifugal block 16. The arc-shaped toothed plate 17 is meshed with the inner gear ring 13 to complete the power connection, and the initial position of the arc-shaped toothed plate 17 is located on one side of the arc-shaped friction plate 146, and a No. 2 reset spring 18 is installed between the centrifugal block 16 and the side wall of the telescopic area 15. The elastic strength of the No. 2 reset spring 18 can be freely replaced according to needs. An adjustment area 19 is recessed inwardly at the front end of the arc-shaped friction plate 146, and a slide plate 20 is slidably installed in the adjustment area 19. A plug rod 21 is fixedly penetrated on the slide plate 20, and the plug rod 21 slides through the top of the adjustment area 19 and is inserted outside the plug rod 21. The sleeve is provided with a No. 1 spring 22, which is correspondingly arranged between the sliding area 142 and the slide plate 20. The No. 1 spring 22 pushes the insertion rod 21 to fit with the wedge block 24. A slot 23 is provided at the bottom of the gravity arm 143, and the top of the insertion rod 21 can slide into the slot 23. A wedge block 24 is slidably engaged at the bottom of the adjustment area 19. A sliding area that cooperates with the wedge block 24 is provided at the bottom of the adjustment area 19, and a No. 2 spring is installed between the adjustment area 19 and the wedge block 24. The No. 2 spring pushes the wedge block 24 to move out of the adjustment area 19, and the front end of the wedge block 24 extends out of the adjustment area 19. A slope 25 is provided at the bottom of the insertion rod 21, and the upper and lower position adjustment of the insertion rod 21 is completed through the cooperation of the wedge block 24 and the slope 25;

[0056] It is worth noting that: in order to improve the stability of the centrifugal block 16, under normal conditions, the wedge block 24 pushes the inclined surface 25, so that the insertion rod 21 is correspondingly inserted into the slot 23, and the centrifugal block 16 is limited to prevent the centrifugal block 16 from being accidentally thrown out. At the same time, in the contact path between the arc-shaped friction plate 146 and the annular friction disk 12, the extended wedge block 24 is squeezed and retracted toward the adjustment area 19 and hidden. Under the guidance of the wedge block 24 and the inclined surface 25, the insertion rod 21 moves downward and separates from the slot 23. At this time, the centrifugal block 16 is unlocked, which is convenient for the subsequent centrifugal throwing out of the centrifugal block 16.

[0057] In the embodiment of the present invention, the plurality of action components all include a conveying channel 26, which is communicated with the premixing chamber 3 and the mixing tank 1. A horizontal plate 27 extends from the bottom of the inner wall of the premixing chamber 3. A lifting rod 28 is slidably penetrated on the horizontal plate 27. A guide wheel 29 is installed on the top of the lifting rod 28 through a bracket. An extrusion spring 30 is sleeved on the outside of the lifting rod 28. The extrusion spring 30 pushes the guide wheel 29 to fit and contact with the guide groove 11. The extrusion spring 30 is located between the horizontal plate 27 and the guide wheel 29. The top of the guide wheel 29 contacts with the guide groove 11. A circular plate 31 is arranged in the conveying channel 26. A friction ring is installed on the side wall of the circular plate 31. The side wall of the plate 31 is in frictional contact with the side wall of the conveying channel 26. A circulation area 32 is opened through the center of the circular plate 31. A movable plate 33 is installed on the upper surface of the circular plate 31. The movable plate 33 can cover the circulation area 32. A plurality of guide rods 34 are arranged in a circular array on the lower surface of the movable plate 33. The bottoms of the plurality of guide rods 34 slide through the circular plate 31 correspondingly. A limit block for limiting is installed at the bottom of the plurality of guide rods 34. An annular cavity 35 is commonly connected at the bottom of the plurality of conveying channels 26. A plurality of material distribution pipes are connected and installed at the bottom of the annular cavity 35. Solenoid valves for controlling the on-off of the plurality of material distribution pipes are installed at the ends of the plurality of material distribution pipes.

[0058] It is worth noting that: when feeding high-concentration raw liquid, by providing multiple action components, when the annular disk 10 rotates, the guide wheel 29 rotates and contacts with the guide groove 11 on the lower surface of the annular disk 10. When the guide wheel 29 contacts with a single guide groove 11, it completes the up and down movement under the guidance of the guide groove 11. During a single rise, the guide wheel 29 is pushed upward by the compression spring 30, and the lifting rod 28, the circular plate 31, and the moving plate 33 are pulled upward at the same time. Due to the friction between the circular plate 31 and the conveying channel 26, the circular plate 31 is separated under the restriction of the guide rod 34 during the upward movement. With the help of the separation gap between the circular plate 31 and the moving plate 33, the liquid passes through the circulation area. 32 introduces the high-concentration stock solution in the premixing chamber 3 into the conveying channel 26 to complete the feeding action. In the subsequent single downward movement, the guide wheel 29 and the lifting rod 28 move downward and compress the extrusion spring 30. Similarly, there is friction between the circular plate 31 and the conveying channel 26, so that the circular plate 31 and the moving plate 33 complete the closed blockage to form a piston. In the downward movement, the high-concentration stock solution in the conveying channel 26 is pushed by the piston once, which can quickly complete the conveying and transfer of the stock solution in the premixing chamber 3, and the multiple guide grooves 11 form a wave-like undulating trajectory on the annular disk 10, thereby completing the continuous work of multiple power components, and can complete the rapid transfer and delivery of the stock solution;

[0059] In the embodiment of the present invention, the two conveying assemblies both include a concave seat 36 installed on the inner wall of the mixing tank 1, a reciprocating screw 37 is rotatably installed in the concave seat 36, a screw nut 38 is slidably engaged on the concave seat 36, the screw nut 38 is correspondingly sleeved on the outside of the reciprocating screw 37, and the screw nut 38 is driven to reciprocate up and down under the transmission of the reciprocating screw 37, an electromagnetic clutch 39 connected to the reciprocating screw 37 is installed on the top of the concave seat 36, and a power shaft 40 is installed on the top of the electromagnetic clutch 39, through the power shaft 40, the electromagnetic clutch 39 and the reciprocating screw 37 The power connection is completed, and a delivery nozzle 41 is installed on each of the two screw nuts 38. The type of the delivery nozzle 41 can be freely set according to the delivery requirements, and can complete the stable delivery of high-concentration raw materials. The delivery nozzle 41 is connected to the material distribution pipe through a spring tube. Two No. 1 synchronous wheels 42 are sleeved on the outside of the stirring shaft 7, and No. 2 synchronous wheels 43 are sleeved on the power shafts 40 of the two conveying components. Two synchronous belts 44 are respectively sleeved between the two No. 1 synchronous wheels 42 and the No. 2 synchronous wheels 43, and the power of the stirring shaft 7 is transmitted to the two power shafts 40 through the two synchronous belts 44;

[0060] It is worth noting that when high-concentration raw liquid is transported, two conveying components are provided, and the raw liquid introduced into the annular cavity 35 is divided through multiple distribution pipes, and then the high-concentration raw liquid enters the conveying nozzle 41 and is sent out to complete the slow release with the liquid in the mixing tank 1, and the rotation of the stirring shaft 7 is transmitted to the two power shafts 40 through two synchronous belts 44, so that the reciprocating screw 37 rotates, and the linkage screw nut 38 reciprocates up and down in the limit of the concave seat 36, so that the high-concentration raw liquid is quickly and evenly released at different liquid level heights in the mixing tank 1, thereby improving the mixing efficiency and shortening the production cycle. At the same time, the electromagnetic clutch 39 completes the power connection between the power shaft 40 and the reciprocating screw 37. By controlling the electromagnetic clutch 39, the conveying nozzle 41 can be limited to different liquid level heights to complete continuous feeding. At the same time, it can complete power interruption with the stirring shaft 7 after the feeding is completed, avoiding invalid work and increasing energy consumption.

[0061] Embodiment 4: A mixing method for producing a nucleating agent based on radiation cracking of polyolefins, the mixing method specifically comprises the following steps:

[0062] Step 1: First, feed each raw material into the premixing chamber 3 in sequence;

[0063] Step 2: Under the premixing action of the mixing mechanism, the raw materials of each component are fully premixed into a high-concentration stock solution in the premixing chamber 3;

[0064] Step 3: After the premixing of the raw materials of each component is completed, the feeding mechanism is triggered to complete the power connection with the stirring shaft 7;

[0065] Step 4: The trigger component continuously transmits the received power to the multiple action components, driving the multiple action components to complete the extrusion and conveying action, thereby transferring the high-concentration stock solution in the premixing chamber 3 to the conveying component;

[0066] Step 5: Finally, the high-concentration stock solution is gradually and slowly released to various liquid levels in the mixing tank 1 by means of the reciprocating up and down movement of the conveying component.

[0067] The present invention provides a mixing device and method for producing a polyolefin radiation cracking nucleating agent, and the specific working principle is as follows: first, each raw material is fed into a premixing chamber 3 through a second feed pipe 5, and then a proper amount of liquid is added, and then under the premixing action of the mixing mechanism, each component raw material is fully premixed into a high-concentration stock solution in the premixing chamber 3, so that each component raw material is homogenized to a certain extent in the initial stage, avoiding the problem of agglomeration and coagulation, which is conducive to subsequent mixing;

[0068] With the assistance of the trigger feeding mechanism, after the premixing of each component raw material is completed, it is only necessary to disconnect the electromagnet 144, and the connecting piece 14 on the trigger assembly moves under the action of centrifugal force to complete the friction connection with the annular friction disk 12. In order to make the subsequent rotation more stable, the rotation speed of the stirring shaft 7 is immediately increased, and the connecting piece 14 is driven to complete the secondary locking, so as to realize the power connection between the stirring shaft 7 and the trigger assembly. After that, the received power is continuously transmitted to multiple action components through the trigger assembly, and the multiple action components are driven to complete the extrusion and conveying action, thereby transferring the high-concentration stock liquid in the premixing chamber 3 to the conveying component, and finally the high-concentration stock liquid is gradually released to various liquid level heights in the mixing tank 1 by the up and down reciprocating movement of the conveying component, and contacts with the liquid injected in advance in the mixing tank 1 to complete the rapid mixing work, thereby improving the mixing efficiency, so that the components of the raw materials can be fully and quickly mixed, and the production efficiency is improved.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mixing device for producing a polyolefin radiation cracking nucleating agent, comprising a mixing tank (1), wherein a top cover (2) is detachably mounted on the mixing tank (1), and characterized in that: A premixing chamber (3) is added to the end cover (2), a mixing mechanism is installed in the premixing chamber (3), and the mixing mechanism extends into the mixing tank (1) for mixing and stirring, and a trigger feeding mechanism is installed in the premixing chamber (3). A top cover (4) is detachably installed on the top of the premixing chamber (3), and a stirring shaft (7) is rotatably installed on the lower surface of the top cover (4); The trigger feeding mechanism is linked with the mixing mechanism. The trigger feeding mechanism is composed of a trigger component, a plurality of action components and two conveying components. The triggering and driving of the trigger component and the plurality of action components are completed by the mixing mechanism. The trigger component is correspondingly arranged at the bottom of the premixing chamber (3). The plurality of action components are evenly distributed in the premixing chamber (3) and the mixing tank (1). The two conveying components are symmetrically installed on both sides of the mixing tank (1). The trigger component drives the plurality of action components to complete the extrusion conveying action, thereby transferring the high-concentration raw liquid in the premixing chamber (3) to the two conveying components. The raw liquid premixed in the premixing chamber (3) is actively conveyed to different liquid levels in the mixing tank (1) by the trigger component, the plurality of action components and the two conveying components. The trigger assembly comprises an annular disk (10) rotatably mounted on the bottom of a premixing chamber (3); a plurality of guide grooves (11) are arranged in a circular array on the lower surface of the annular disk (10); an annular friction disk (12) is mounted on the top of the annular disk (10); an inner gear ring (13) is staggeredly mounted on the top of the annular friction disk (12); and two connecting pieces (14) are symmetrically mounted on the outside of the stirring shaft (7) via a bracket; the two connecting pieces (14) are respectively connected to the annular friction disk (12) and the inner gear ring (13) to complete power transmission; The plurality of action components all include a conveying channel (26), a horizontal plate (27) extending from the bottom of the inner wall of the premixing chamber (3), a lifting rod (28) slidingly passing through the horizontal plate (27), and a guide wheel (29) mounted on the top of the lifting rod (28) via a bracket; An extrusion spring (30) is sleeved on the outside of the lifting rod (28), and the extrusion spring (30) is located between the horizontal plate (27) and the guide wheel (29). The top of the guide wheel (29) contacts the guide groove (11). A circular plate (31) is arranged in the conveying channel (26). The side wall of the circular plate (31) is in frictional contact with the side wall of the conveying channel (26). A flow area (32) is opened through the center of the circular plate (31). A moving plate (33) is installed on the upper surface of the circular plate (31). A plurality of guide rods (34) are arranged in a circular array on the lower surface of the moving plate (33), and an annular cavity (35) is commonly connected at the bottom of the plurality of conveying channels (26); When the guide wheel (29) is in contact with a single guide groove (11), it is guided by the guide groove (11) to complete an up and down movement. During a single rise, the guide wheel (29) is pushed upward by the extrusion spring (30), and the lifting rod (28), the circular plate (31), and the movable plate (33) are pulled upward at the same time. Due to the friction between the circular plate (31) and the conveying channel (26), the circular plate (31) is separated under the restriction of the guide rod (34) during the upward movement. With the help of the separation gap between the circular plate (31) and the movable plate (33), the high-concentration raw liquid in the premixing chamber (3) is introduced into the conveying channel (26) through the circulation area (32), completing the feeding action. Subsequently, during a single downward movement, the guide wheel (29) and the lifting rod (28) move downward and compress the extrusion spring (30). Similarly, there is friction between the circular plate (31) and the conveying channel (26), so that the circular plate (31) and the movable plate (33) are closed and blocked.

2. A mixing device for producing a polyolefin radiation cracking nucleating agent according to claim 1, characterized in that: A plurality of No. 2 feed pipes (5) connected to the premixing chamber (3) are arranged side by side on one side of the top cover (4).

3. A mixing device for producing a polyolefin radiation cracking nucleating agent according to claim 2, characterized in that: The mixing mechanism comprises a stirring motor (6) mounted on the top of a premixing chamber (3) via a bracket, the bottom of the stirring shaft (7) rotatingly passes through the end cover (2) and extends into the mixing tank (1), and the top of the stirring shaft (7) is drivingly connected to the stirring motor (6), a plurality of first stirring blades (8) are detachably mounted on the outside of the stirring shaft (7) and located in the mixing tank (1), and a plurality of second stirring blades (9) are detachably mounted on the outside of the stirring shaft (7) and located in the premixing chamber (3).

4. A mixing device for producing a polyolefin radiation cracking nucleating agent according to claim 3, characterized in that: The two connecting members (14) each include a cross arm (141), a sliding area (142) is provided through the side of the cross arm (141) away from the stirring shaft (7), a gravity arm (143) is slidably engaged in the sliding area (142), and the front end of the gravity arm (143) is slidably arranged to pass through the sliding area (142), a No. 1 return spring (145) is sleeved on the outside of the gravity arm (143), an arc-shaped friction plate (146) is detachably installed on the end of the gravity arm (143) away from the cross arm (141), an electromagnet (144) is hidden on the inner wall of the sliding area (142) close to the stirring shaft (7), and an iron plate is provided on the side of the gravity arm (143) facing the electromagnet (144).

5. A mixing device for producing a polyolefin radiation cracking nucleating agent according to claim 4, characterized in that: A telescopic area (15) is provided through the gravity arm (143) on one side close to the arc-shaped friction plate (146), a centrifugal block (16) is slidably engaged in the telescopic area (15), an arc-shaped tooth plate (17) is installed on one side of the centrifugal block (16), and a No. 2 return spring (18) is installed between the centrifugal block (16) and the side wall of the telescopic area (15).

6. A mixing device for producing a polyolefin radiation cracking nucleating agent according to claim 5, characterized in that: The two conveying assemblies each comprise a concave seat (36) mounted on the inner wall of the mixing tank (1), a reciprocating screw (37) being rotatably mounted in the concave seat (36), a screw nut (38) being slidably engaged on the concave seat (36), the screw nut (38) being correspondingly sleeved on the outside of the reciprocating screw (37), and the screw nut (38) being driven to move up and down under the drive of the reciprocating screw (37), an electromagnetic clutch (39) being drive-connected to the reciprocating screw (37) being mounted on the top of the concave seat (36), a power shaft (40) being drive-mounted on the top of the electromagnetic clutch (39), and a conveying nozzle (41) being mounted on both screw nuts (38).

7. A mixing device for producing a polyolefin radiation cracking nucleating agent according to claim 6, characterized in that: Two first synchronous wheels (42) are sleeved on the outside of the stirring shaft (7), second synchronous wheels (43) are sleeved on the power shafts (40) of the two conveying assemblies, and two synchronous belts (44) are respectively sleeved between the two first synchronous wheels (42) and the second synchronous wheels (43).

8. A mixing method for producing a nucleating agent based on radiation cracking of polyolefins, using a mixing device for producing a nucleating agent based on radiation cracking of polyolefins according to any one of claims 1 to 7, characterized in that: The hybrid method specifically includes the following steps: Step 1: First, the raw materials are sequentially fed into the premixing chamber (3); Step 2: Under the premixing action of the mixing mechanism, the raw materials of each component are fully premixed into a high-concentration stock solution in the premixing chamber (3); Step 3: After the premixing of the raw materials of each component is completed, the feeding mechanism is triggered to complete the power connection with the stirring shaft (7); Step 4: The trigger component continuously transmits the received power to the multiple action components, driving the multiple action components to complete the extrusion and conveying action, thereby transferring the high-concentration raw liquid in the premixing chamber (3) to the conveying component; Step 5: Finally, the high-concentration stock solution is gradually released to various liquid levels in the mixing tank (1) by means of the reciprocating up and down movement of the conveying component.

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