Plasticizer esterification reaction device

Abstract

The invention discloses a plasticizer esterification reaction device which comprises a reaction cylinder, a stirring assembly and a sealing assembly, the stirring assembly is arranged on the reaction tank and is used for stirring materials in the reaction tank; the reaction cylinder comprises a cylinder body and a cylinder cover, the cylinder cover is detachably mounted at the upper end of the cylinder body through bolts, and a material cavity for accommodating materials is formed in the cylinder body; the sealing assembly is arranged at the joint of the barrel body and the barrel cover and used for sealing the joint of the barrel body and the barrel cover, the sealing assembly comprises a sealing piece and an extrusion piece, and the extrusion piece is movably arranged on the sealing piece. The sealing assembly is arranged, the sealing assembly comprises the sealing piece and the extrusion piece, and the extrusion piece is movably arranged on the sealing piece; and the extrusion piece moves relative to the sealing piece under the action of the pressure difference and extrudes the sealing piece, so that the two sides of the sealing piece are in tighter contact with the barrel body and the barrel cover, and the sealing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plasticizer preparation, and in particular to a plasticizer esterification reaction device. Background Art

[0002] Plasticizer, also known as plasticizer, is an additive that increases the softness of materials or liquefies materials. It is a polymer material additive widely used in industrial production. It can effectively improve the performance of polymer materials, reduce production costs, and improve production efficiency. It is added to plastics, concrete, wall materials, cement, gypsum, etc.

[0003] In the process of preparing plasticizers, an esterification reaction is required. During the esterification reaction, in order to increase the yield, the esterification reaction is usually carried out under sealed conditions. However, since the esterification reaction generally uses concentrated sulfuric acid as a catalyst and is heated to promote the reaction, this will cause the pressure in the reaction device to increase, resulting in failure of the seal of the esterification reaction device. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a plasticizer esterification reaction device, by setting a sealing component, the sealing component includes a sealing part and an extrusion part, the extrusion part can be movably arranged on the sealing part, when the pressure in the cylinder body increases, the extrusion part moves relative to the sealing part under the action of the pressure difference and squeezes the sealing part so that the two sides of the sealing part are in closer contact with the cylinder body and the cylinder cover, thereby improving the sealing effect.

[0005] The technical solution provided by the present invention to solve the above problems is: a plasticizer esterification reaction device, comprising a reaction cylinder, a stirring component and a sealing component;

[0006] The stirring assembly is arranged on the reaction tank and is used to stir the material in the reaction tank;

[0007] The reaction cylinder comprises a cylinder body and a cylinder cover, wherein the cylinder cover is detachably mounted on the upper end of the cylinder body by bolts, and a material cavity for accommodating materials is arranged in the cylinder body;

[0008] The sealing assembly is arranged at the connection between the cylinder body and the cylinder cover to seal the connection between the cylinder body and the cylinder cover. The sealing assembly includes a sealing member and an extruding member. The extruding member is movably arranged on the sealing member. When the pressure in the cylinder body increases, the extruding member moves relative to the sealing member under the action of the pressure difference and squeezes the sealing member so that the two sides of the sealing member are in closer contact with the cylinder body and the cylinder cover, thereby improving the sealing effect.

[0009] Preferably, the stirring assembly includes a driving member, a stirring shaft and a plurality of stirring paddles, the driving member is arranged at the upper end of the cylinder cover, one end of the stirring shaft is transmission-connected to the driving member, and the other end penetrates the cylinder cover and extends into the cylinder body, and the plurality of stirring paddles are arranged at intervals on the outer circumferential surface of the stirring shaft.

[0010] Preferably, the driving member is a servo motor.

[0011] Preferably, the sealing member is a sealing ring made of rubber.

[0012] Preferably, the extrusion member includes a mounting ring and an extrusion ring, the extrusion ring is mounted on the mounting ring, and the sealing member is provided with an annular movable groove cooperating with the extrusion ring, and the groove wall of the annular movable groove will be squeezed during the relative displacement between the extrusion ring and the movable groove.

[0013] Preferably, a groove wall of the annular movable groove is an inclined arc surface one, and a surface on the extrusion ring that matches the inclined arc surface one is an inclined arc surface two.

[0014] Preferably, an annular limiting ridge is provided on the side wall of the extrusion ring which is away from the second inclined arc-shaped surface, and a limiting groove which cooperates with the annular limiting ridge is provided on the annular movable groove.

[0015] Preferably, a pressure relief structure is further provided in the sealing assembly, and the pressure relief structure is used to relieve pressure when the air pressure in the cylinder is greater than a set value.

[0016] Preferably, the pressure relief structure includes air relief hole 1, air relief hole 2 and air relief hole 3, and the air relief hole 1 and air relief hole 2 are arranged in the extrusion ring. One end of the air relief hole 1 is connected to the material cavity, and the other end is connected to the air relief hole 2. The end of the air relief hole 2 away from the air relief hole 1 extends to the inclined arc surface 2. One end of the air relief hole 3 is connected to the annular movable groove, and the other end is connected to the upper end of the seal.

[0017] Preferably, the extrusion ring is made of rubber material.

[0018] Compared with the prior art, the advantages of the present invention are: the present invention arranges a sealing assembly, the sealing assembly includes a sealing member and an extrusion member, and the extrusion member is movably arranged on the sealing member. When the pressure in the cylinder increases, the extrusion member moves relative to the sealing member under the action of the pressure difference and squeezes the sealing member so that the two sides of the sealing member are in closer contact with the cylinder and the cylinder cover, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 is a cross-sectional view of the present invention;

[0022] Figure 3 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0023] Figure 4 is a top view of an extrusion of the present invention;

[0024] Figure 5 is a bottom view of the seal of the present invention;

[0025] Figure 6 It is a schematic diagram of the pressure relief structure of the present invention when performing pressure relief.

[0026] The attached drawings are marked with: 1. cylinder cover, 2. servo motor, 3. cylinder body, 4. stirring paddle, 5. stirring shaft, 6. air vent hole three, 7. sealing element, 8. limiting groove, 9. annular limiting ridge, 10. extrusion ring, 11. air vent hole one, 12. air vent hole two, 13. mounting ring, 14. inclined arc surface two, 15. annular movable groove, 16. inclined arc surface one, 17. material cavity. DETAILED DESCRIPTION

[0027] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0033] As shown in the accompanying drawings, a specific embodiment of the present invention is a plasticizer esterification reaction device, including a reaction cylinder, a stirring assembly and a sealing assembly;

[0034] The stirring assembly is arranged on the reaction tank and is used to stir the material in the reaction tank;

[0035] The reaction cylinder comprises a cylinder body 3 and a cylinder cover 1, wherein the cylinder cover 1 is detachably mounted on the upper end of the cylinder body 3 by bolts, and a material cavity 17 for containing materials is provided in the cylinder body 3;

[0036] The sealing assembly is arranged at the connection between the cylinder body 3 and the cylinder cover 1 to seal the connection between the cylinder body 3 and the cylinder cover 1. The sealing assembly includes a sealing member 7 and an extruding member. The extruding member is movably arranged on the sealing member 7. When the pressure in the cylinder body 3 increases, the extruding member moves relative to the sealing member 7 under the action of the pressure difference and squeezes the sealing member 7 so that the two sides of the sealing member 7 are in closer contact with the cylinder body 3 and the cylinder cover 1, thereby improving the sealing effect.

[0037] In the above scheme, a sealing assembly is provided, which includes a sealing member and an extrusion member, wherein the extrusion member is movably provided on the sealing member. When the pressure in the cylinder increases, the extrusion member moves relative to the sealing member under the action of the pressure difference and squeezes the sealing member so that the two sides of the sealing member are in closer contact with the cylinder and the cylinder cover, thereby improving the sealing effect.

[0038] Specifically, the stirring assembly includes a driving member, a stirring shaft 5 and a plurality of stirring paddles 4, wherein the driving member is arranged at the upper end of the cylinder cover 1, one end of the stirring shaft 5 is connected to the driving member by transmission, and the other end penetrates the cylinder cover 1 and extends into the cylinder body 3, and the plurality of stirring paddles 4 are arranged at intervals on the outer circumferential surface of the stirring shaft 5. Further, the driving member is a servo motor 2.

[0039] In this embodiment, the sealing member 7 is a sealing ring made of rubber.

[0040] As another embodiment of the present invention, the extrusion member includes a mounting ring 13 and an extrusion ring 10, wherein the extrusion ring 10 is mounted on the mounting ring 13, and the sealing member 7 is provided with an annular movable groove 15 cooperating with the extrusion ring 10, and the groove wall of the annular movable groove 15 will be squeezed during the relative displacement between the extrusion ring 10 and the movable groove.

[0041] Furthermore, a groove wall of the annular movable groove 15 is an inclined arc surface 16 , and a surface on the extrusion ring 10 that matches the inclined arc surface 16 is an inclined arc surface 2 14 .

[0042] Specifically, the limiting method between the extrusion ring and the sealing member is as follows: an annular limiting ridge 9 is provided on the side wall of the extrusion ring 10 away from the inclined arc surface 2 14, and a limiting groove 8 is provided on the annular movable groove 15 to cooperate with the annular limiting ridge 9. The cooperation between the limiting groove and the annular limiting ridge prevents the extrusion ring from being separated from the sealing member.

[0043] It is known to those skilled in the art that if the pressure inside the cylinder exceeds the rated value, there will be certain safety hazards. Therefore, in this embodiment, further, a pressure relief structure is also provided in the sealing assembly, and the pressure relief structure is used to relieve pressure when the air pressure in the cylinder 3 is greater than the set value. Specifically, the pressure relief structure includes a vent hole 11, a vent hole 2 12 and a vent hole 3 6. The vent hole 11 and the vent hole 2 12 are arranged in the extrusion ring 10. One end of the vent hole 11 is connected to the material cavity 17, and the other end is connected to the vent hole 2 12. The vent hole 2 12 extends from one end of the vent hole 11 to the inclined arc surface 2 14. One end of the vent hole 3 6 is connected to the annular movable groove 15, and the other end is connected to the upper end of the seal 7.

[0044] It should be noted that the extrusion ring 10 is made of rubber material. Under normal conditions, the two side walls of the extrusion ring are tightly attached to the groove walls on both sides of the annular movable groove to form a seal.

[0045] In the above scheme, when the air pressure in the cylinder rises, the air pressure in the cylinder is greater than the air pressure outside the cylinder. Therefore, a pressure difference is formed on both sides of the extrusion ring. Under the action of the pressure difference, the extrusion ring moves toward the side of the air pressure. During the movement of the extrusion ring, the inclined arc surface 2 on the extrusion ring and the inclined arc surface 1 in the annular movable groove are relatively displaced. The inclined arc surface 2 on the extrusion ring squeezes the inclined arc surface 1 in the annular movable groove, so that the extrusion ring applies an extrusion force to the two groove walls of the annular movable groove, so that the outer ring and the inner ring of the seal are respectively more tightly attached to the cylinder and the cylinder cover, and the sealing effect is better; when the air pressure in the cylinder exceeds the threshold, the extrusion ring continues to move under the action of the air pressure until the end of the vent hole 2 away from the vent hole 1 is separated from the inclined arc surface 1 and connected to the annular movable groove, and is no longer blocked by the inclined arc surface 1 (such as Figure 6 As shown), the gas in the cylinder enters the air leakage hole 2 through the air leakage hole 1 and then enters the annular movable groove, and finally flows out from the air leakage hole 3 to achieve the purpose of pressure relief; the sealing component of this scheme can, on the one hand, adjust the degree of deformation of the sealing ring according to the pressure in the cylinder, thereby achieving the purpose of improving the sealing performance, and on the other hand, it can realize the function of pressure relief.

[0046] The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A plasticizer esterification reaction device, characterized in that: It includes a reaction cylinder, a stirring assembly and a sealing assembly; The stirring assembly is arranged on the reaction tank and is used to stir the material in the reaction tank; The reaction cylinder comprises a cylinder body (3) and a cylinder cover (1), wherein the cylinder cover (1) is detachably mounted on the upper end of the cylinder body (3) by means of bolts, and a material cavity (17) for accommodating materials is provided in the cylinder body (3); The sealing component is arranged at the connection between the cylinder (3) and the cylinder cover (1) and is used to seal the connection between the cylinder (3) and the cylinder cover (1). The sealing component comprises a sealing member (7) and an extruding member. The extruding member is movably arranged on the sealing member (7). When the pressure in the cylinder (3) increases, the extruding member moves relative to the sealing member (7) under the action of the pressure difference and squeezes the sealing member (7) so that the two sides of the sealing member (7) are in closer contact with the cylinder (3) and the cylinder cover (1), thereby improving the sealing effect.

2. A plasticizer esterification reaction device according to claim 1, characterized in that: The stirring assembly comprises a driving member, a stirring shaft (5) and a plurality of stirring paddles (4); the driving member is arranged at the upper end of the cylinder cover (1); one end of the stirring shaft (5) is drivingly connected to the driving member, and the other end penetrates the cylinder cover (1) and extends into the cylinder body (3); and the plurality of stirring paddles (4) are arranged at intervals on the outer circumferential surface of the stirring shaft (5).

3. A plasticizer esterification reaction device according to claim 2, characterized in that: The driving component is a servo motor (2).

4. A plasticizer esterification reaction device according to claim 1, characterized in that: The sealing member (7) is a sealing ring made of rubber.

5. A plasticizer esterification reaction device according to claim 1 or 4, characterized in that: The extrusion member comprises a mounting ring (13) and an extrusion ring (10), wherein the extrusion ring (10) is mounted on the mounting ring (13), and the sealing member (7) is provided with an annular movable groove (15) cooperating with the extrusion ring (10), and the groove wall of the annular movable groove (15) is squeezed during the relative displacement between the extrusion ring (10) and the movable groove.

6. A plasticizer esterification reaction device according to claim 5, characterized in that: A groove wall of the annular movable groove (15) is an inclined arc surface one (16), and a surface on the extrusion ring (10) that matches the inclined arc surface one (16) is an inclined arc surface two (14).

7. A plasticizer esterification reaction device according to claim 6, characterized in that: An annular limiting ridge (9) is provided on the side wall of the extrusion ring (10) which is away from the second inclined arc surface (14), and a limiting groove (8) which cooperates with the annular limiting ridge (9) is provided on the annular movable groove (15).

8. A plasticizer esterification reaction device according to claim 7, characterized in that: A pressure relief structure is also provided in the sealing component, and the pressure relief structure is used to relieve pressure when the air pressure in the cylinder (3) is greater than a set value.

9. A plasticizer esterification reaction device according to claim 8, characterized in that: The pressure relief structure comprises a first air leakage hole (11), a second air leakage hole (12) and a third air leakage hole (6). The first air leakage hole (11) and the second air leakage hole (12) are arranged in the extrusion ring (10). One end of the first air leakage hole (11) is connected to the material cavity (17), and the other end is connected to the second air leakage hole (12). One end of the second air leakage hole (12) away from the first air leakage hole (11) extends to the second inclined arc surface (14). One end of the third air leakage hole (6) is connected to the annular movable groove (15), and the other end is connected to the upper end of the sealing member (7).

10. A plasticizer esterification reaction device according to claim 5, characterized in that: The extrusion ring (10) is made of rubber material.

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