Preparation device and preparation process of multi-metal master batch

Abstract

The invention discloses a multi-metal master batch preparation device and a preparation process thereof, and relates to the technical field of multi-metal master batch preparation, the multi-metal master batch preparation device comprises a preparation tank and further comprises three fixing rings arranged on the side wall of the preparation tank, the three fixing rings are fixedly connected with raw material tanks, and the sides, close to a mounting cover, of the three raw material tanks are fixedly connected with feeding pipes; the three raw material tanks are respectively used for filling a compound antirust agent, carrier plastic and an auxiliary agent, and calcium carbonate is injected into the tanks, used for filling the carrier plastic, of the three raw material tanks. According to the preparation device and the preparation process of the multi-metal master batch, through the arrangement of the mixing assembly and the crushing assembly, the weight of low-density polyethylene carrier plastic can be effectively increased under the action of high density of calcium carbonate while crushing and mixing of raw materials are realized; therefore, the phenomenon that the low-density polyethylene carrier plastic tilts up due to the influence of the stirring airflow in the stirring and mixing process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of multi-metal masterbatch preparation, and in particular to a multi-metal masterbatch preparation device and a preparation process thereof. Background Art

[0002] Since low-density polyethylene carrier plastic has good compatibility with a variety of rust inhibitors and additives, it can be well integrated with the ingredients in the compound rust inhibitor (such as sodium cinnamate, sodium benzoate, etc.) and additives (such as stearic acid amide, sucrose fatty acid esters, etc.). Good compatibility ensures the quality stability of the anti-rust masterbatch, allowing the various components to work synergistically. At the same time, low-density polyethylene carrier plastic, as a carrier, can effectively carry rust inhibitors and additives. It can wrap the rust inhibitors and additives inside to prevent them from leaking or volatilizing during storage and use, and can accurately deliver the rust-proof ingredients to the metal surface that needs rust prevention when in use. Therefore, low-density polyethylene carrier plastic is commonly used as a carrier raw material for multi-metal masterbatch.

[0003] In the process of preparing multi-metal masterbatch, it is first necessary to mix the low-density polyethylene carrier plastic with the compound rust inhibitor and additives. During the mixing process, the material is often stirred by a stirring blade. The stirring blade will have a strong stirring effect on the surrounding air during rotation, and will draw the air into the material system to form a complex airflow. These airflows will produce an upward movement in the container. Since the low-density polyethylene carrier plastic has a small density (density is 0.90-0.96g / cm3), it will be drawn into it, resulting in an upward phenomenon. When the low-density polyethylene powder is upward, the concentration of the low-density polyethylene carrier plastic in the upper part of the container will be too high, while other components at the bottom will be relatively concentrated, resulting in uneven distribution in the stirring container, thereby reducing the mixing effect with the compound rust inhibitor and additives. For this reason, we propose a preparation device and a preparation process for multi-metal masterbatch. Summary of the invention

[0004] The object of the present invention is to provide a preparation device and a preparation process of multi-metal masterbatch to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a preparation device for multi-metal masterbatch, comprising a preparation tank, wherein the side wall of the preparation tank is provided with a plurality of supporting legs, the top of the preparation tank is provided with a mounting cover, and the top is provided with a discharge pipe, and also comprises three fixing rings arranged on the side wall of the preparation tank, the three fixing rings are fixedly connected with raw material tanks, the three raw material tanks are fixedly connected with feed pipes on one side close to the mounting cover, the three raw material tanks are respectively used to fill compound rust inhibitors, carrier plastics and additives, the three raw material tanks are used to fill the carrier plastic tanks with calcium carbonate injected, the three raw material tanks are fixedly connected with discharge pipes at one end close to the discharge pipe, the three discharge pipes are provided with a control component for controlling the discharge of raw materials, the preparation tank is provided with a mixing component for mixing three raw materials and a crushing component for crushing the raw materials before mixing, and the three raw material tanks are provided with a stirring component for preventing the raw materials from agglomerating.

[0006] Preferably, the crushing assembly includes a conical crushing disk fixedly connected to the preparation tank, the inner side wall of the conical crushing disk is provided with a plurality of grinding grooves, the bottom wall of the conical crushing disk is provided with a plurality of discharge holes, the conical crushing disk is slidably connected with a grinding disk, the conical crushing disk is provided with a first driving assembly for driving the grinding disk, and the grinding disk is provided with an arc surface on the side away from the discharge hole.

[0007] Preferably, the mixing assembly includes a mixing rod rotatably connected to a conical crushing disk, the grinding disk is connected to the mixing rod through a connecting assembly, the side wall of the mixing rod located between the conical crushing disk and the bottom wall of the preparation tank is fixedly connected with a plurality of mixing blades, each of the mixing blades is an anchor blade, the mounting cover is provided with a mixing motor, and the output end of the mixing motor is connected to the mixing rod.

[0008] Preferably, the connecting assembly comprises a spline hole opened in the grinding disc, the spline hole is slidably connected with a plurality of spline bars, and the opposite side of each of the spline bars is connected to the mixing rod.

[0009] Preferably, the mixing rod is provided with a telescopic assembly for telescoping during the driving process of the grinding disc, the telescopic assembly includes a mounting ring fixedly connected to the side wall of the mixing rod, the mounting ring is located on the side of each spline bar away from the mixing blade, the mixing rod side wall is sleeved with a first spring, and the two ends of the first spring are respectively connected to the mounting ring and the grinding disc.

[0010] Preferably, the drive assembly includes multiple groups of first drive plates that are symmetrically arranged in pairs and fixedly connected to the side of the conical crushing disk close to the mixing motor, and the two opposite side walls of each of the first drive plates are provided with inclined surfaces. The grinding disk is fixedly connected to one side close to each first drive plate with two symmetrically arranged L-shaped plates.

[0011] Preferably, the control assembly includes a control rod rotatably connected to the discharge pipe located on the inner side wall of the preparation tank, the control rod is located on the inner side wall of the discharge pipe and is fixedly connected to a control plate, the end of the control rod away from the conical crushing disk is fixedly connected to a control ring, the side wall of the control rod is sleeved with a torsion spring, the two ends of the torsion spring are respectively connected to the control ring and the side wall of the discharge pipe, and the end of the control rod away from the control ring is provided with a second drive assembly for driving the control plate.

[0012] Preferably, the second drive assembly includes a second drive plate fixedly connected to an end of the control rod away from the control ring, an adjustment hole is provided on a side of the second drive plate close to the L-shaped plate, an adjustment plate is slidably connected to the adjustment hole, and a T-bolt for locking the adjustment plate is threadedly connected to a side of the second drive plate away from the conical crushing disk.

[0013] Preferably, the stirring assembly includes a stirring rod rotatably connected to the raw material tank, a plurality of stirring blades are fixedly connected to the side wall of the stirring rod, a stirring motor is fixedly connected to the side of the raw material tank away from the discharge pipe, and the output end of the stirring motor is connected to the stirring rod.

[0014] A preparation process of a multi-metal masterbatch comprises the following steps:

[0015] S1. Filling the compound rust inhibitor (mixed by sodium cinnamate, sodium benzoate, benzotriazole, ammonium molybdate, zinc oxide in a mass ratio of 1.2-1.7: 2.2-2.7: 0.4-0.8: 3.5-4.5: 0.4-0.8), carrier plastic (low-density polyethylene with a density of 0.90-0.96 g / cm3) and auxiliary agent (mixed by stearic acid amide, heavy calcium carbonate, sucrose fatty acid ester, antioxidant 1076 in a mass ratio of 0.9-1.3: 4.8-6.5: 2.5-3.3: 0.8-1.1) into the raw material tank through the feed pipe, and injecting calcium carbonate into the raw material pipe filled with the carrier plastic;

[0016] S2. Preliminary mixing of the raw materials in the raw material tank using a stirring assembly;

[0017] S3. During the stirring process of the raw materials in the raw material tank, the control component is used to realize intermittent feeding of the raw materials, thereby providing sufficient grinding, crushing and mixing time for the raw materials previously entered, and realizing uniform feeding of various raw materials;

[0018] S4. In the process of intermittent feeding of raw materials, the mixing assembly and the crushing assembly are set, and the first drive assembly and the telescopic assembly cooperate with each other to grind and crush the raw materials with larger particle sizes before mixing the raw materials;

[0019] S5. After the low-density polyethylene carrier plastic is mixed with the compound rust inhibitor and the additives, it can be discharged from the discharge pipe, and then the obtained mixture is kneaded and melted, and then mixed and plasticized and extruded at a temperature of 150-180°C to obtain multi-metal rust inhibitor masterbatch.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The multi-metal masterbatch preparation device and preparation process of the present invention, through the arrangement of a mixing component and a crushing component, can achieve the crushing and mixing of the raw materials while utilizing the high density of calcium carbonate to effectively increase the weight of the low-density polyethylene carrier plastic, thereby significantly increasing the weight of the low-density polyethylene carrier plastic, and further being used to reduce the upward tilt of the low-density polyethylene carrier plastic caused by the influence of the stirring airflow during the stirring and mixing process, thereby improving the uniformity of the distribution of the low-density polyethylene carrier plastic in the preparation tank, and further improving the mixing effect with the compound rust inhibitor and additives. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the preparation tank of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the connection assembly of the present invention;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 It is a schematic diagram of the spline hole structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the conical crushing disk of the present invention;

[0028] Figure 7 It is a schematic diagram of the internal structure of the control component and the stirring component of the present invention;

[0029] Figure 8 for Figure 7 Enlarged view of point B in the middle.

[0030] In the figure: 101, preparation tank; 102, support leg; 103, installation cover; 104, discharge pipe; 2, fixing ring; 3, raw material tank; 4, feed pipe; 5, discharge pipe; 601, conical crushing disk; 602, discharge hole; 603, grinding disk; 604, arc surface; 701, mixing rod; 702, mixing blade; 703, mixing motor; 801, spline hole; 802, spline strip; 901, installation ring ; 902, first spring; 1001, first drive plate; 1002, inclined plane; 1003, L-shaped plate; 1101, control rod; 1102, control plate; 1103, control ring; 1104, torsion spring; 1201, second drive plate; 1202, adjustment hole; 1203, adjustment plate; 1204, T-bolt; 1301, stirring rod; 1302, stirring blade; 1303, stirring motor. DETAILED DESCRIPTION

[0031] 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.

[0032] Example 1

[0033] See also Figure 1-Figure 8, a preparation device and preparation process of a multi-metal masterbatch shown in the figure, including a preparation tank 101, a plurality of supporting legs 102 are arranged on the side wall of the preparation tank 101, a mounting cover 103 is arranged on the top of the preparation tank 101, and a discharge pipe 104 is arranged on the top, and also includes three fixing rings 2 arranged on the side wall of the preparation tank 101, the three fixing rings 2 are fixedly connected with raw material tanks 3, and the three raw material tanks 3 are fixedly connected with a feeding pipe 4 on one side close to the mounting cover 103, and the three raw material tanks 3 are respectively used to fill the compound rust inhibitor, the carrier plastic and the auxiliary agent, and the compound rust inhibitor is composed of sodium cinnamate, sodium benzoate, benzotriazole, ammonium molybdate, and zinc oxide in a mass ratio of 1.2-1.7:2.2-2.7:0.4-0.8:3.5-4.5:0.4-0.8 The auxiliary agent is a mixture of stearic acid amide, heavy calcium carbonate, sucrose fatty acid ester and antioxidant 1076 in a mass ratio of 0.9-1.3:4.8-6.5:2.5-3.3:0.8-1.1. The carrier plastic is a low-density polyethylene with a density of 0.90-0.96 g / cm3. Calcium carbonate is injected into the three raw material tanks 3 for filling the carrier plastic. The three raw material tanks 3 are fixedly connected with a discharge pipe 5 at one end close to the discharge pipe 104. The three discharge pipes 5 are provided with a control component for controlling the discharge of the raw materials. The preparation tank 101 is provided with a mixing component for mixing the three raw materials and a crushing component for crushing the raw materials before mixing. The three raw material tanks 3 are provided with a stirring component for preventing the raw materials from agglomerating.

[0034] It should be noted here that: through the setting of the mixing component and the crushing component, while achieving the crushing and mixing of the raw materials, the weight of the low-density polyethylene carrier plastic can be effectively increased by utilizing the higher density of calcium carbonate, thereby significantly increasing the weight of the low-density polyethylene carrier plastic, and then used to reduce the upward phenomenon of the low-density polyethylene carrier plastic caused by the influence of the stirring airflow during the stirring and mixing process, thereby improving the uniformity of the distribution of the low-density polyethylene carrier plastic in the preparation tank 101, and then improving the mixing effect with the compound rust inhibitor and additives.

[0035] It is worth noting that the mass percentage of each component in the anti-rust masterbatch is: 30-50% compound anti-rust agent, 40-60% carrier plastic and 10-20% additives.

[0036] See also Figure 2-Figure 6 The crushing assembly shown in the figure includes a conical crushing disk 601 fixedly connected to the preparation tank 101, a plurality of grinding grooves are provided on the inner wall of the conical crushing disk 601, a plurality of discharge holes 602 are provided on the bottom wall of the conical crushing disk 601, a grinding disk 603 is slidably connected to the conical crushing disk 601, the conical crushing disk 601 is provided with a first driving assembly for driving the grinding disk 603, and a curved surface 604 is provided on the side of the grinding disk 603 away from the discharge hole 602;

[0037] It should be noted here that: through the setting of the crushing component, under the rotating grinding action of the grinding disk 603, it is used to grind and crush raw materials with larger particle sizes. When the particle size of the raw materials after grinding and crushing meets the requirements, they will be discharged from the discharge hole 602 on the conical crushing disk 601, and then fall into the mixing area of ​​the preparation tank 101.

[0038] See also Figure 3 The mixing assembly shown in the figure includes a mixing rod 701 rotatably connected to the conical crushing disk 601, the grinding disk 603 is connected to the mixing rod 701 through a connecting assembly, and the side wall of the mixing rod 701 located between the conical crushing disk 601 and the bottom wall of the preparation tank 101 is fixedly connected with a plurality of mixing blades 702, each of which is an anchor blade, and the mounting cover 103 is provided with a mixing motor 703, and the output end of the mixing motor 703 is connected to the mixing rod 701;

[0039] It should be noted here that the mixing component is used to stir and mix a variety of different raw materials after grinding and crushing.

[0040] See also Figure 4 and Figure 5 The connecting assembly shown in the figure includes a spline hole 801 opened in the grinding disc 603, and the spline hole 801 is slidably connected to a plurality of spline bars 802, and the opposite side of each spline bar 802 is connected to the mixing rod 701;

[0041] It should be noted here that: through the setting of the connecting component, in the process of driving the grinding disc 603 to rotate, a moving space can be provided for the reciprocating up and down movement of the grinding disc 603.

[0042] See also Figure 3 and Figure 4 The mixing rod 701 shown in the figure is provided with a telescopic assembly for telescoping during the driving process of the grinding disc 603, and the telescopic assembly includes a mounting ring 901 fixedly connected to the side wall of the mixing rod 701, and the mounting ring 901 is located on the side of each spline strip 802 away from the mixing blade 702. The side wall of the mixing rod 701 is sleeved with a first spring 902, and the two ends of the first spring 902 are respectively connected to the mounting ring 901 and the grinding disc 603;

[0043] It should be noted here that the telescopic assembly is provided to provide a reset effect for the grinding disc 603 .

[0044] See also Figure 3-Figure 5The driving assembly shown in the figure includes a plurality of groups of first driving plates 1001 symmetrically arranged in pairs, which are fixedly connected to the side of the conical crushing disk 601 close to the mixing motor 703. The two opposite side walls of each first driving plate 1001 are provided with inclined surfaces 1002. The grinding disk 603 is fixedly connected to one side close to each first driving plate 1001 with two L-shaped plates symmetrically arranged in pairs.

[0045] It should be noted here that the drive assembly is arranged to drive the grinding disc 603 to move up and down reciprocatingly during the rotation process.

[0046] See also Figure 7 and Figure 8 The control assembly shown in the figure includes a control rod 1101 rotatably connected to the discharge pipe 5 located on the inner side wall of the preparation tank 101, the control rod 1101 is located on the inner side wall of the discharge pipe 5 and is fixedly connected to a control plate 1102, the end of the control rod 1101 away from the conical crushing disk 601 is fixedly connected to a control ring 1103, the side wall of the control rod 1101 is sleeved with a torsion spring 1104, the two ends of the torsion spring 1104 are respectively connected to the control ring 1103 and the side wall of the discharge pipe 5, and the end of the control rod 1101 away from the control ring 1103 is provided with a second drive assembly for driving the control plate 1102;

[0047] It should be noted here that the discharge of raw materials is controlled by setting the control component.

[0048] See also Figure 7 and Figure 8 The second driving assembly shown in the figure includes a second driving plate 1201 fixedly connected to the end of the control rod 1101 away from the control ring 1103, an adjustment hole 1202 is opened on the side of the second driving plate 1201 close to the L-shaped plate 1003, the adjustment hole 1202 is slidably connected to the adjustment plate 1203, and a T-bolt 1204 for locking the adjustment plate 1203 is threadedly connected to the side of the second driving plate 1201 away from the conical crushing disk 601;

[0049] It should be noted here that: through the setting of the second drive component, intermittent entry of raw materials is achieved, thereby providing sufficient grinding, crushing and mixing time for the previously entered raw materials while achieving uniform feeding of various raw materials, and in the actual intermittent feeding process, the contact time between the L-shaped plate 1003 and the second drive plate 1201 can be changed by adjusting the length of the adjustment plate 1203, thereby changing the pushing time of the control plate 1102, thereby achieving control over the discharge amount of raw materials, and then facilitating the flexible adjustment of the single discharge amount of raw materials according to the ratio and content of different raw materials, thereby further improving the mixing uniformity of the raw materials.

[0050] See also Figure 7 The stirring assembly shown in the figure includes a stirring rod 1301 rotatably connected to the raw material tank 3, a plurality of stirring blades 1302 are fixedly connected to the side wall of the stirring rod 1301, a stirring motor 1303 is fixedly connected to the side of the raw material tank 3 away from the discharge pipe 5, and the output end of the stirring motor 1303 is connected to the stirring rod 1301;

[0051] It should be noted here that the stirring assembly is provided to achieve preliminary mixing of the raw materials while reducing the risk of agglomeration of the raw materials.

[0052] A preparation process of a multi-metal masterbatch comprises the following steps:

[0053] S1. Filling the compound rust inhibitor (mixed by sodium cinnamate, sodium benzoate, benzotriazole, ammonium molybdate, zinc oxide in a mass ratio of 1.2-1.7: 2.2-2.7: 0.4-0.8: 3.5-4.5: 0.4-0.8), carrier plastic (low-density polyethylene with a density of 0.90-0.96 g / cm3) and auxiliary agent (mixed by stearic acid amide, heavy calcium carbonate, sucrose fatty acid ester, antioxidant 1076 in a mass ratio of 0.9-1.3: 4.8-6.5: 2.5-3.3: 0.8-1.1) into the raw material tank 3 through the feed pipe 4, and injecting calcium carbonate into the raw material pipe filled with the carrier plastic;

[0054] S2. Preliminary mixing of the raw materials in the raw material tank 3 using a stirring assembly;

[0055] S3. During the stirring process of the raw materials in the raw material tank 3, the control component is used to realize the intermittent feeding of the raw materials, thereby providing sufficient grinding, crushing and mixing time for the raw materials previously entered, and realizing uniform feeding of various raw materials;

[0056] S4. In the process of intermittent feeding of raw materials, the mixing assembly and the crushing assembly are set, and the first drive assembly and the telescopic assembly cooperate with each other to grind and crush the raw materials with larger particle sizes before mixing the raw materials;

[0057] S5. After the low-density polyethylene carrier plastic is mixed with the compound rust inhibitor and the additive, it can be discharged from the discharge pipe 104, and then the obtained mixture is kneaded and melted, and then mixed and plasticized and extruded at a temperature of 150 to 180°C to obtain a multi-metal rust inhibitor masterbatch.

[0058] Working principle: When preparing multi-metal masterbatch, first fill the compound rust inhibitor (sodium cinnamate, sodium benzoate, benzotriazole, ammonium molybdate, zinc oxide in a mass ratio of 1.2 to 1.7:

[0059] 2.2-2.7:0.4-0.8:3.5-4.5:0.4-0.8), carrier plastic (low-density polyethylene with a density of 0.90-0.96 g / cm3) and auxiliary agent (stearic acid amide, heavy calcium carbonate, sucrose fatty acid ester, antioxidant 1076 mixed in a mass ratio of 0.9-1.3:4.8-6.5:2.5-3.3:0.8-1.1) are respectively filled into the raw material tank 3 through the feed pipe 4, and calcium carbonate is injected into the raw material pipe filled with the carrier plastic;

[0060] After the raw materials required for preparing the multi-metal masterbatch are respectively loaded into the raw material tank 3, the stirring motor 1303 is started to drive the stirring blade 1302 on the stirring rod 1301 to rotate, and then the rotation of the stirring blade 1302 is used to preliminarily mix the raw materials and reduce the risk of agglomeration of the raw materials;

[0061] In the process of stirring the raw materials in the raw material tank 3, the mixing motor 703 is started to drive the mixing blade 702 on the mixing rod 701 to rotate. During the rotation of the mixing rod 701, the spline bar 802 and the spline hole 801 are connected to drive the grinding disc 603 to rotate synchronously. During the rotation of the grinding disc 603, the two L-shaped plates 1003 are driven to rotate. When the two rotating L-shaped plates 1003 rotate to between the two adjacent first driving plates 1001, they will be against the second driving plate 1201, and then under the pushing action of the L-shaped plate 1003, the second driving plate 1201 will rotate, thereby driving the control plate 110 on the control rod 1101. 2 rotates, thereby releasing the blockage of the discharge port of the discharge pipe 5. At this time, under the action of the gravity of the raw materials and the stirring and pushing action of the stirring assembly on the raw materials, the raw materials will flow from the discharge port to the conical crushing disk 601, thereby realizing the release of the raw materials. When the L-shaped plate 1003 is separated from the second driving plate 1201, the control plate 1102 will be driven to reset and rotate under the elastic action of the torsion spring 1104, thereby blocking the discharge port of the discharge pipe 5, so that the raw materials will no longer flow into the conical crushing disk 601, thereby realizing intermittent entry of the raw materials, providing sufficient grinding, crushing and mixing time for the raw materials that have entered previously, and realizing uniform feeding of various raw materials.

[0062] In the actual intermittent feeding process, the contact time between the L-shaped plate 1003 and the second driving plate 1201 can be changed by adjusting the length of the adjusting plate 1203, thereby changing the pushing time of the control plate 1102, thereby realizing the control of the discharge amount of the raw materials, and then facilitating the flexible adjustment of the single discharge amount of the raw materials according to the proportion content of different raw materials, thereby further improving the mixing uniformity of the raw materials;

[0063] At the same time, during the rotation of the two rotating L-shaped plates 1003, they will collide with the first driving plate 1001 on the conical crushing disk 601, and then, under the interaction force of the inclined surface 1002 and the guiding action of the spline strip 802 and the spline hole 801, the grinding disk 603 will be pushed away from the conical crushing disk 601, so that the raw materials flowing out of the discharge pipe 5 will flow from the gap between the grinding disk 603 and the conical crushing disk 601 to the bottom wall of the conical crushing disk 601. When the plate 1001 is moved, the grinding disc 603 will be pushed to move close to the conical crushing disc 601 under the elastic action of the first spring 902, and then the raw materials with larger particle sizes will be ground and crushed under the rotation and grinding action of the grinding disc 603. When the particle size of the raw materials after grinding and crushing meets the requirements, they will be discharged from the discharge hole 602 on the conical crushing disc 601 and then fall into the mixing area of ​​the preparation tank 101, and then the mixing and stirring action of the mixing blades 702 is used to achieve the mixing operation of multiple raw materials.

[0064] In the process of mixing the various raw materials by the mixing blades 702, since calcium carbonate is injected into the carrier plastic, the weight of the low-density polyethylene carrier plastic can be effectively increased under the effect of its higher density, thereby significantly increasing the weight of the low-density polyethylene carrier plastic, and then used to reduce the upward tilt of the low-density polyethylene carrier plastic caused by the influence of the stirring airflow during the stirring process, thereby improving the uniformity of the distribution of the low-density polyethylene carrier plastic in the preparation tank 101, and then improving the mixing effect with the compound rust inhibitor and the additives;

[0065] Calcium carbonate has good compatibility with the ingredients and additives in the compound rust inhibitor. It is relatively stable in chemical properties and will not react chemically with rust inhibitor ingredients such as sodium cinnamate and sodium benzoate. For additives, such as stearic acid amide, which mainly plays a lubricating role, and sucrose fatty acid ester, which plays an emulsifying role, the addition of calcium carbonate will not interfere with the functions of these additives. Moreover, the surface of calcium carbonate can be further modified (such as surfactant treatment) to further enhance its compatibility with other ingredients, so that it can be evenly dispersed in the entire mixed system.

[0066] After the low-density polyethylene carrier plastic is mixed with the compound rust inhibitor and the additive, it can be discharged from the discharge pipe 104, and then the obtained mixture is kneaded and melted, and then mixed and plasticized and extruded at a temperature of 150-180°C to obtain multi-metal rust inhibitor masterbatch.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] 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 device for preparing multi-metal masterbatch, comprising: A preparation tank (101), wherein a plurality of supporting legs (102) are provided on the side wall of the preparation tank (101), a mounting cover (103) is provided on the top of the preparation tank (101), and a discharge pipe (104) is provided on the top; It is characterized by further comprising: Three fixing rings (2) are arranged on the side wall of the preparation tank (101), the three fixing rings (2) are fixedly connected to the raw material tanks (3), the three raw material tanks (3) are fixedly connected to the side close to the installation cover (103) with the feeding pipes (4), the three raw material tanks (3) are respectively used to fill the compound rust inhibitor, the carrier plastic and the auxiliary agent, the three raw material tanks (3) are used to fill the tanks with the carrier plastic and calcium carbonate is injected into the tanks, the three raw material tanks (3) are fixedly connected to the end close to the discharge pipe (104) with the discharge pipe (5), the three discharge pipes (5) are provided with control components for controlling the discharge of the raw materials, the preparation tank (101) is provided with a mixing component for mixing the three raw materials and a crushing component for crushing the raw materials before mixing, and the three raw material tanks (3) are provided with a stirring component for preventing the raw materials from agglomerating.

2. The device for preparing multi-metal masterbatch according to claim 1, characterized in that: The crushing assembly comprises a conical crushing disk (601) fixedly connected to the preparation tank (101), the inner wall of the conical crushing disk (601) is provided with a plurality of grinding grooves, the bottom wall of the conical crushing disk (601) is provided with a plurality of discharge holes (602), the conical crushing disk (601) is slidably connected with a grinding disk (603), the conical crushing disk (601) is provided with a first driving assembly for driving the grinding disk (603), and the grinding disk (603) is provided with an arc surface (604) on a side away from the discharge hole (602).

3. The preparation device of a multi-metal masterbatch according to claim 2, characterized in that: The mixing assembly comprises a mixing rod (701) rotatably connected to a conical crushing disk (601); the grinding disk (603) is connected to the mixing rod (701) via a connecting assembly; a side wall of the mixing rod (701) located between the conical crushing disk (601) and the bottom wall of the preparation tank (101) is fixedly connected with a plurality of mixing blades (702); each of the mixing blades (702) is an anchor blade; the mounting cover (103) is provided with a mixing motor (703); an output end of the mixing motor (703) is connected to the mixing rod (701).

4. The device for preparing multi-metal masterbatch according to claim 3, characterized in that: The connection assembly comprises a spline hole (801) opened on the grinding disc (603), and the spline hole (801) is slidably connected to a plurality of spline bars (802), and the opposite side of each spline bar (802) is connected to the mixing rod (701).

5. The device for preparing multi-metal masterbatch according to claim 4, characterized in that: The mixing rod (701) is provided with a telescopic assembly for telescoping during the driving process of the grinding disc (603), the telescopic assembly comprising a mounting ring (901) fixedly connected to the side wall of the mixing rod (701), the mounting ring (901) being located on a side of each spline strip (802) away from the mixing blade (702), the side wall of the mixing rod (701) being sleeved with a first spring (902), the two ends of the first spring (902) being respectively connected to the mounting ring (901) and the grinding disc (603).

6. The device for preparing multi-metal masterbatch according to claim 5, characterized in that: The driving assembly comprises a plurality of groups of first driving plates (1001) which are fixedly connected to a side of a conical crushing disk (601) close to a mixing motor (703) and are symmetrically arranged in pairs, and two opposite side walls of each of the first driving plates (1001) are provided with inclined surfaces (1002), and one side of the grinding disk (603) close to each of the first driving plates (1001) is fixedly connected to two L-shaped plates (1003) which are symmetrically arranged in pairs.

7. The device for preparing multi-metal masterbatch according to claim 6, characterized in that: The control assembly comprises a control rod (1101) rotatably connected to a discharge pipe (5) located on an inner side wall of a preparation tank (101); the control rod (1101) is located on an inner side wall of the discharge pipe (5) and is fixedly connected to a control plate (1102); one end of the control rod (1101) away from the conical crushing disk (601) is fixedly connected to a control ring (1103); a torsion spring (1104) is sleeved on the side wall of the control rod (1101); two ends of the torsion spring (1104) are respectively connected to the control ring (1103) and the side wall of the discharge pipe (5); and one end of the control rod (1101) away from the control ring (1103) is provided with a second drive assembly for driving the control plate (1102).

8. The device for preparing multi-metal masterbatch according to claim 7, characterized in that: The second driving assembly comprises a second driving plate (1201) fixedly connected to an end of the control rod (1101) away from the control ring (1103); an adjustment hole (1202) is provided on a side of the second driving plate (1201) close to the L-shaped plate (1003); the adjustment hole (1202) is slidably connected to the adjustment plate (1203); and a T-bolt (1204) for locking the adjustment plate (1203) is threadedly connected to a side of the second driving plate (1201) away from the conical crushing disk (601).

9. The device for preparing multi-metal masterbatch according to claim 8, characterized in that: The stirring assembly comprises a stirring rod (1301) rotatably connected to the raw material tank (3), a plurality of stirring blades (1302) are fixedly connected to the side wall of the stirring rod (1301), a stirring motor (1303) is fixedly connected to the side of the raw material tank (3) away from the discharge pipe (5), and the output end of the stirring motor (1303) is connected to the stirring rod (1301).

10. A process for preparing a multi-metal masterbatch, which uses a multi-metal masterbatch preparation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Filling a compound rust inhibitor (mixed with sodium cinnamate, sodium benzoate, benzotriazole, ammonium molybdate, and zinc oxide in a mass ratio of 1.2-1.7: 2.2-2.7: 0.4-0.8: 3.5-4.5: 0.4-0.8), a carrier plastic (low-density polyethylene with a density of 0.90-0.96 g / cm3), and an auxiliary agent (mixed with stearic acid amide, heavy calcium carbonate, sucrose fatty acid ester, and antioxidant 1076 in a mass ratio of 0.9-1.3: 4.8-6.5: 2.5-3.3: 0.8-1.1) into a raw material tank (3) through a feed pipe (4), and injecting calcium carbonate into the raw material pipe filled with the carrier plastic; S2. Preliminary mixing of the raw materials in the raw material tank (3) using a stirring assembly; S3. During the stirring process of the raw materials in the raw material tank (3), the control component is used to realize intermittent feeding of the raw materials, thereby providing sufficient grinding, crushing and mixing time for the raw materials previously entered, and realizing uniform feeding of various raw materials; S4. In the process of intermittent feeding of raw materials, the mixing assembly and the crushing assembly are set, and the first drive assembly and the telescopic assembly cooperate with each other to grind and crush the raw materials with larger particle sizes before mixing the raw materials; S5. After the low-density polyethylene carrier plastic is mixed with the compound rust inhibitor and the additive, it can be discharged from the discharge pipe (104), and then the obtained mixture is kneaded and melted, and then mixed and plasticized and extruded at a temperature of 150 to 180°C to obtain a multi-metal rust inhibitor masterbatch.

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