JPS62180746A - Reaction device - Google Patents

Abstract

PURPOSE:To prevent the generation of coking by detecting the temp. at each point of a vessel for a treating material via partition plates and controlling the temps. to a temp. region for preventing the generation of the coking according to the detected temps. CONSTITUTION:This invention relates to a reaction device to make addition polymn., etc., of a polymerizable org. material, in which the plural partition plates 21-28 are projected and provided to the vessel 10 by spacing the same from each other at prescribed distances between agitating plates 19-20. The 2nd-5th temp. detecting parts 30-33 are packaged to the partition plates 21, 24, 25, 28 at the points corresponding to the 1st temp. detecting part 29 at one end of the vessel 10. The respective output terminals of the 1st-5th temp. detecting parts 29-33 are connected to the 1st-5th temp. control parts 34-38. The temps. at the respective parts of the vessel for the treating material are detected via the partition plates in the above-mentioned manner and the temps. of the treating material at the outlet of the vessel and near the same are controlled to the temp. region for preventing the generation of the coking according to the detected temps.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a reaction device for stirring and mixing substances in various states such as high viscosity fluids, slurry substances, and tlA bodies, and particularly relates to olefin-based and conjugated substances. Polymerization reaction equipment for obtaining polymers from polymerizable organic compounds such as diene hydrocarbons by addition of heavy metals, and for producing polycondensation polymers such as polyamides and polyesters, and for removing solvents and monomers from polymers. This invention relates to equipment suitable for polymer production, such as equipment for polymer production.

[Background technology] In general, polymerization reactors and other reactors for processing various materials such as high viscosity fluids, slurry materials, powders, etc. require sufficient mixing action, high heat transfer and speed, and require rough mixing. It is necessary to have a function of preventing the adhesion of tffi substances that interfere with the reaction function, etc.

For example, when heavy oils are heated and decomposed, a thermal decomposition phenomenon occurs, resulting in the formation of glass.

Heavy components such as light oil and heavy components such as pitch and coke are produced, and during the polycondensation process that produces particularly heavy components, pitch and coke are deposited on reaction walls, heating tube walls, etc. This is called coking. Things become a problem. Therefore, as a means to satisfy the above-mentioned various demands, methods have been proposed in which a plurality of screw-shaped stirring plates are combined to produce a self-cleaning action.

However, all conventional devices of this type are configured to self-clean the inside of the reaction vessel, and it is impossible to self-clean the outlet of the substance to be treated in the vessel and its vicinity. As a result, there has been a problem in that coking occurs at the outlet and its vicinity, clogging piping, control valves, etc.

[Problem to be solved by the invention 1 This valve → was made in view of the above points, and is designed to prevent caulking at the container outlet and its vicinity, thereby realizing reliable self-cleaning. The purpose is to provide a reactor.

[Means for Solving the Problems] The present invention provides partition plates protruding from the middle of the inlet and outlet of the container at predetermined intervals corresponding to the stirring plates, and temperature detection devices mounted on each of the partition plates. and a temperature control means for controlling the temperature of the material to be treated at the outlet to a coking prevention temperature range in response to the temperature detection means.

[Function] That is, the present invention detects the temperature at each point in the container of the material to be treated through the partition plate, and depending on the detected temperature, adjusts the temperature of the material to be treated at the outlet of the container and its vicinity to the coking prevention temperature. This prevents the occurrence of coking, which can cause the outlet piping, control valves, etc. to close.

[Example] Hereinafter, examples of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a reaction apparatus according to an embodiment of the present invention, in which a cylindrical container 10 having an inlet 11 and an outlet 12 at both ends has, for example, two rotating shafts constituting a stirring body. 13 and 14 are inserted and supported by bearings 15, 16, 17, and '18. The rotating shafts 13 and 14 are each driven to rotate in the same direction at the same rotational angular velocity by a rotation drive unit (not shown). It is attached in the form of a plug. The stirring plates 19 and 20 are, for example, circles having a diameter equal to the distance between the centers of their rotating shafts 13 and 14, and when rotating in the same direction and at the same rotational angular velocity with their respective centers as rotation cores, they rotate relative to each other. It is arranged in a 6-way structure that has a feeding function and a stirring function so that it is not obstructed.

Sunawamo, theft agitation board 19 and company O have a population of 11.
A predetermined number of adjacent ones are arranged in a spiral staircase shape, for example, so that a feeding action of the material to be processed is caused by moving the rotating shafts 13 and 14 in the direction of the rotating shafts 13 and 14 to move the material to be processed toward the exit. The plates 19 and 20 are arranged so as to have only a stirring function. The cross-sectional shape of the inner wall of the container 10 is formed in the shape of or close to the outermost rotation locus of the corresponding stirring plate 19 and 20, and the self-winding movement is linked to the rotational movement of the stirring plates 19 and 20. Cleaned.

Further, a plurality of partition plates 21 to 28 are protruded from the container 10 so as to be spaced apart from each other by a predetermined distance between the stirring plates 19 and 20. The partition plates 21 to 28 are arranged so as to lightly contact or have a predetermined gap between the stirring plates 19 and 20 without interfering with their rotational movement, and among them, the partition plates 21, 24, 26, and 28 are that,
Second to fifth temperature detection units 30 to 3 respectively correspond to the first temperature extraction unit 29 attached to one end of the container 10.
3 has been implemented. The output terminals of the first to fifth temperature detection sections 29 to 33 are connected to the first to fifth temperature control sections 34 to 38, and the M1 to fifth temperature control sections N1 to 38 are The first to fifth temperature detecting units 29 to 43 are arranged in the container 10 to correspond to the first to fifth temperature detecting units 29 to 33 via the first to fifth driving units 39 to 43, respectively, for temperature control. It is connected to heaters 44 to 48. Note that the partitions #i21 to #i28 are self-cleaned by the stirring plates 19 and 20 in conjunction with the rotational movement of the stirring plates 19 and 20, respectively.

That is, the reaction device includes the rotational drive section (not shown).
is driven and the rotating shafts 13 and 14 are rotationally driven,
Due to the action of the stirring plates 19 and 20, the substance to be treated in the container 10 is moved over the partition plates 21 to 22 and transferred toward the outlet while being stirred and mixed or reacted. At this time, the first to fifth temperature detection units 29 to 33 detect the temperature at one end of the container 10, respectively, and the partition plate 21°2.
4.26. The temperature of the substance to be processed at the position 2'8 is detected and each detection signal is output to the first to fifth temperature control sections 34 to 38, respectively. Then, the first to fifth temperature control sections 34 to 38 drive and control the first to fifth heaters 44 to 48 via the first to fifth drive sections 39 to 43, respectively. The temperature in the fourth temperature detection part 29 to 32 is controlled to a temperature suitable for mixing or reaction (for example, about 450°C), and the temperature in the fifth temperature detection part 33 is controlled to a coking prevention temperature range (for example, about 350°C). ).

As a result, since the substance to be treated is controlled to a temperature range that prevents coking at the outlet 12 and its vicinity, coking is prevented in the container 10 as well as on the inner wall due to the self-cleaning action of one stirring plate and 20. Occurrence is prevented.

It goes without saying that the present invention is not limited to the above-mentioned embodiments, and that various modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] As described in detail above, according to the present invention, the temperature at each point in the container for the material to be treated is detected through the partition plate, and the temperature at the outlet of the container and the vicinity thereof is adjusted according to the detected temperature. Since the temperature is controlled to be within the coking prevention temperature range, it is possible to provide a reaction apparatus that prevents coking at the outlet of the container and its vicinity and achieves reliable self-cleaning.

[Brief explanation of drawings]

FIG. 1 is a structural explanatory diagram showing a reaction apparatus according to an embodiment of the present invention. 10... Container, 11... Inlet, 12... Outlet, 1
3゜14...rotation axis, 15, 16, 17.18...
Bearing, 19.20... Stirring plate, 21 to 28... Partition plate, 2 to 33... First to fifth temperature detection parts,
34 to 38...first to fifth temperature control units, 39 to 43...first to fifth drive units, 44 to 48...
-First to fifth heaters.

Claims (1)

[Claims] A stirring body composed of a plurality of rotating shafts arranged parallel to each other, a plurality of stirring plates each having a plate surface perpendicularly connected to each rotating shaft in a skewer shape, and housing the rotating shafts and the stirring body. It consists of a container having an inlet and an outlet for the substance to be treated, and a lumen that is equal to or slightly larger than the outermost locus of the stirring body, and the substance to be treated is mixed or reacted while being circulated. A reaction apparatus comprising: a partition plate protruding at a predetermined interval between an inlet and an outlet of the container corresponding to the stirring plate; a temperature detection means mounted on each of the partition plates; A reaction apparatus comprising: a temperature control means for controlling the temperature at the outlet of the substance to be treated to a coking prevention temperature range in response to the detection means.