CN-117181163-B - Rubber accelerator oxidation process and feeding device

CN117181163BCN 117181163 BCN117181163 BCN 117181163BCN-117181163-B

Abstract

The invention discloses a rubber accelerator oxidation process and a feeding device, which comprise a reaction kettle body, wherein the reaction kettle body comprises a reaction tank body, an end cover and an air inlet, the reaction kettle body is provided with a feeding mechanism, the feeding mechanism comprises a feeding tank body, a processing tank body and a feeding port, the feeding port is arranged on the processing tank body, the output end of the feeding tank body is connected with the feeding end of the end cover, the processing tank body is provided with a dispersing component, the dispersing component is used for separating an accelerator in an adhesion or agglomeration state, the rubber accelerator oxidation process and the feeding device utilize the dispersing component to disperse the adhesion or agglomeration accelerator, the incomplete oxidation condition in the subsequent oxidation process can be effectively avoided, and meanwhile, the detection processing component can be used for effectively detecting and reprocessing the accelerator, so that the adhesion or agglomeration of the accelerator into an integral state is reduced, and the product quality of the accelerator is further improved.

Inventors

LIU YANJUN
Jing Xianhong
ZHANG QINGWEI
DOU JINPENG
ZHANG LINLIN
XU XINHAO

Assignees

山东法恩新材料科技有限公司

Dates

Publication Date: 20260505
Application Date: 20230918

Claims (4)

1. The rubber accelerator oxidation feeding device is characterized by comprising a reaction kettle body (1), wherein the reaction kettle body (1) comprises a reaction tank body (11), an end cover (12) and an air inlet (13), a feeding mechanism (2) is arranged on the reaction kettle body (1), the feeding mechanism (2) comprises a feeding tank body (21), a treatment tank body (22) and a feeding port (23), the feeding port (23) is arranged on the treatment tank body (22), the output end of the feeding tank body (21) is connected with the feeding end of the end cover (12), a dispersing assembly (3) is arranged on the treatment tank body (22), and the dispersing assembly (3) is used for separating accelerators in an adhesion or agglomeration state; The dispersing component (3) comprises a servo motor (31) arranged at the end part of the treatment tank body (22), the output end of the servo motor (31) penetrates through the outer wall of the treatment tank body (22) and extends to the inside of the treatment tank body, a rotating shaft (32) is arranged at the output end of the servo motor (31), a plurality of dispersing rod pieces (33) are arranged on the rotating shaft (32), the dispersing rod pieces (33) are composed of a circular sleeve (331) and a plurality of dispersing blades (332), the dispersing blades (332) are distributed on the circular sleeve (331) in an equidistant annular mode, a plurality of arc-shaped baffles (34) are arranged in the treatment tank body (22), and a detection treatment component (35) is arranged at one end of each arc-shaped baffle (34); The dispersing blades (332) are arranged on the circular sleeve (331) in an arc shape; The treatment tank body (22) is provided with a preliminary screening frame (4), a cavity (41) is formed in the preliminary screening frame (4), a plurality of filtering holes (42) for blocking an adhesion or agglomeration promoter are formed in the treatment tank body (22), the preliminary screening frame (4) is provided with a discharge hole (43), the discharge hole (43) is provided with an output pipeline (44) for being connected with the end cover (12), and the end part of the output pipeline (44) penetrates through the inner wall of the end cover (12) and extends into the reaction tank body (11); The detection processing assembly (35) comprises a limiting frame (351) arranged at one end of the arc-shaped baffle plate (34), a plurality of limiting frames (351) are arranged inside the processing tank body (22) and correspond to the arc-shaped baffle plate (34), Y-shaped grooves (352) are formed in the limiting frames (351), and the Y-shaped grooves (352) are used for limiting the motion state of the accelerator; Be provided with a plurality of connecting rods (353) on pivot (32), wherein be provided with carousel (354) on connecting rod (353), carousel (354) are located spacing frame (351) one side, and be in one side that spacing frame (351) was kept away from to carousel (354) is provided with separation frame (355), wherein the lateral wall of spacing frame (351), carousel (354) and separation frame (355) all is provided with a plurality of circular grooves (356), just be in the intercommunication state between circular grooves (356), and be provided with hole groove (357) on circular groove (356) on separation frame (355), the inside cutting blade (358) that are provided with of circular groove (356) on carousel (354), wherein be provided with a plurality of bar-shaped cell bodies (359) on carousel (354).
2. The oxidation feeding device for rubber accelerators according to claim 1, wherein a plurality of air vents (5) are arranged on the primary screening frame (4) and the treatment tank body (22).
3. The oxidation feeding device for rubber accelerator according to claim 2, wherein the height dimension of the strip-shaped groove body (359) is larger than the diameter of the hole groove (357), and the diameter of the circular groove (356) is larger than the height dimension of the strip-shaped groove body (359).
4. A rubber accelerator oxidation process is characterized in that the rubber accelerator oxidation process is applied to the rubber accelerator oxidation feeding device in claim 3, and comprises the following oxidation processes: S1, selecting raw materials, namely a promoter M, a solvent and a catalyst; s2, adding the accelerator M into the reaction kettle body (1), adding a solvent to dissolve the accelerator M, and adding a small amount of catalyst; S3, introducing oxygen into the reaction kettle body (1) until the oxygen is not reduced any more; S4, cooling and suction filtration; s5, recovering the catalyst, decompressing, distilling, and drying to obtain the oxidized accelerator.

Description

Rubber accelerator oxidation process and feeding device Technical Field The invention relates to the technical field of preparation of rubber accelerators, in particular to a rubber accelerator oxidation process and a feeding device. Background The rubber accelerator is a rubber vulcanization accelerator, the vulcanization of rubber is mainly carried out by using sulfur, but the reaction of the sulfur and the rubber is very slow, so that the vulcanization accelerator is needed to participate in the reaction, the accelerator is added into rubber material to promote the activation of the vulcanizing agent, so that the crosslinking reaction of the vulcanizing agent and rubber molecules is accelerated, the effects of shortening the vulcanization time and reducing the vulcanization temperature are achieved, the mainly used vulcanization accelerator mainly comprises sulfenamides, thiazoles, thiurams, part of guanidine, thiourea and dithiocarbamates according to chemical structures, wherein the sulfenamides have the best comprehensive performance and are most widely used; In the process of producing and preparing rubber, a small amount of accelerator is added to accelerate the reaction between the rubber and the vulcanizing agent, so that on one hand, the vulcanizing speed is improved, the vulcanizing temperature is reduced, on the other hand, the consumption of the vulcanizing agent is reduced, and meanwhile, the accelerator can effectively improve the physical properties of the rubber, such as tensile strength, stretching strength, wear resistance, hardness and the like, and on the other hand, the ageing resistance of vulcanized rubber is improved; In the oxidation process of the accelerator, raw materials for condensation reaction are required to be put into a reaction kettle through a feeding mechanism, then related oxidants are added into the reaction kettle for oxidation reaction, and as the raw materials after the condensation reaction are partially adhered (the raw materials with high humidity are easy to be adhered to adjacent raw materials into a whole due to certain viscosity in the reaction process), and meanwhile, caking conditions (related to the suspension property, flowability, solid content and other characteristics of the materials) are easy to occur in the granulation process, so that incomplete oxidation conditions of the raw materials adhered or agglomerated into a whole easily occur in the subsequent oxidation reaction process of adding the raw materials into the reaction kettle, and the product quality of the accelerator is influenced. Disclosure of Invention The invention aims to provide a rubber accelerator oxidation process and a feeding device, which are used for solving the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme that the rubber accelerator oxidation process comprises the following oxidation processes: S1, selecting raw materials, namely a promoter M, a solvent and a catalyst; S2, adding the accelerator M into the reaction kettle body, adding a solvent to dissolve the accelerator M, and adding a small amount of catalyst; S3, introducing oxygen into the reaction kettle body until the oxygen is not reduced; S4, cooling and suction filtration; s5, recovering the catalyst, decompressing, distilling, and drying to obtain an oxidized accelerator; In the oxidation process of the accelerator, a corresponding feeding device is required to assist the accelerator to perform oxidation, and in particular relates to a rubber accelerator oxidation feeding device, which comprises a reaction kettle body, wherein the reaction kettle body comprises a reaction tank body, an end cover and an air inlet, a feeding mechanism is arranged on the reaction kettle body, the feeding mechanism comprises a feeding tank body, a treatment tank body and a feeding port, the feeding port is arranged on the treatment tank body, and the output end of the feeding tank body is connected with the feeding end of the end cover; the treatment tank body is provided with a dispersing assembly, and the dispersing assembly is used for separating the accelerator in an adhesion or agglomeration state. Preferably, the dispersing component comprises a servo motor arranged at the end part of the treatment tank body, the output end of the servo motor penetrates through the outer wall of the treatment tank body and extends to the inside of the treatment tank body, a rotating shaft is arranged at the output end of the servo motor, a plurality of dispersing rod pieces are arranged on the rotating shaft, the dispersing rod pieces are composed of a circular sleeve and a plurality of dispersing leaves, the dispersing leaves are distributed on the circular sleeve in an equidistant annular mode, a plurality of arc-shaped baffles are arranged in the treatment tank body, and one end of each arc-shaped baffle is provided with a detection treatment component. Preferab