Crystallization device for producing 2-ethyl anthraquinone intermediate

Abstract

The utility model relates to the technical field of production of 2-ethyl anthraquinone intermediates, in particular to a crystallization device for production of 2-ethyl anthraquinone intermediates, which comprises a tank body and a feed hopper mounted at the top of the tank body and communicated with an inner cavity of the tank body, a stirring component is rotatably arranged in the tank body, a discharge pipe is mounted below the tank body in a lifting and sliding manner, and the discharge pipe is connected with the tank body. A plurality of rotating rods are arranged in the reaction tank body and are opposite to the position of a discharge port of the tank body, the plurality of rotating rods are rotatably mounted between the tank body and the discharge pipe, a plurality of rotatable connecting cylinders are arranged between the discharge port of the reaction tank body and the discharge pipe, and filter cylinders are mounted at the bottoms of the plurality of connecting cylinders; the filter cartridge can be rapidly and rotatably taken out from the feed opening of the reaction tank body by rotating the connecting cylinder, and the new connecting cylinder and the filter cartridge are rotated to the storage station, so that the whole process is rapid and efficient, the time for replacing the filter cartridge is saved, and the crystallization efficiency in the 2-ethylanthraquinone is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 2-ethylanthraquinone intermediate production technical field, concretely relates to a crystallization device for 2-ethylanthraquinone intermediate production. BACKGROUND

[0002] 2-ethylanthraquinone is widely used in the field of dye, pigment, photosensitive material and the like as an important intermediate.

[0003] Put diethylanthraquinone into the container, add a small amount of room temperature mineral oil or ethanol solvent to form a mixed solution, add appropriate inorganic salt (such as NaCl) to form a cell solution, heat the cell solution to 90-95 DEG C, keep stirring for 10-15 minutes, make diethylanthraquinone crystallize, filter to obtain the crystalline material, and dehydrate with ethanol, cool the stable powder crystal, and the required diethylanthraquinone can be obtained.

[0004] The above-mentioned crystallization method needs to take out the filter cartridge for storing the crystalline material after filtering the crystalline material, and carry out ethanol dehydration operation, during which, a new filter cartridge needs to be put into the original station for collecting the filtered crystalline material, and the whole replacement process needs to waste a lot of time, thereby reducing the crystallization efficiency. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a crystallization device for 2-ethylanthraquinone intermediate production, which can effectively solve the problems in the background art.

[0006] To achieve the above object, the utility model realizes the following technical scheme:

[0007] The utility model provides a crystallization device for 2-ethylanthraquinone intermediate production, including tank body and the feeding hopper of installation at tank body top and with tank body inner chamber communication, the stirring assembly is rotationally arranged in the tank body, the downcomer is slidably installed below the tank body, and is opposite with the tank body downcomer position, a plurality of rotary rods are rotationally installed between the tank body and the downcomer, and a plurality of the rotary rod tip ends are detachably installed with connecting barrels, a plurality of the connecting barrels are both throughly arranged and are installed with filter cartridges at the bottom, when the upper barrel mouth of one filter cartridge is communicated with the tank body downcomer, the downcomer rises to the height, until the corresponding filter cartridge is completely wrapped inside, and is communicated with the lower barrel mouth of the connecting barrel.

[0008] Further, the stirring assembly includes a stirring paddle rotationally installed in the inner cavity of the tank body, and further includes a stirring motor installed at the top of the tank body and having an output end fixedly connected with the stirring paddle.

[0009] Further, the support seat is provided with a lifting cylinder on one side, the top output end of the lifting cylinder is fixedly connected with an L-shaped bent rod, and the tail end of the L-shaped bent rod is vertically fixedly installed on the outer pipe wall of the discharging pipe.

[0010] Further, the outer tank wall of the tank body is provided with a rotary motor, the output end of the rotary motor is connected with a rotary shaft, and the tail end of the rotary shaft is vertically fixedly installed with a rotary seat.

[0011] Further, the outer ring wall of the rotary seat is vertically fixedly installed with a plurality of rotary rods, the tail end of each of the plurality of rotary rods is provided with a socket, and each of the plurality of sockets is provided with a screw.

[0012] Further, the outer cylinder wall of each of the plurality of connecting barrels is vertically fixedly connected with a plug, each of the plurality of plugs is inserted into the corresponding socket, and each of the plurality of screws is screwed into the corresponding plug.

[0013] The technical scheme provided by the utility model has the following beneficial effects compared with the prior art:

[0014] A plurality of rotatable connecting barrels are arranged between the discharging opening of the reaction tank body and the discharging pipe, the bottom of each of the plurality of connecting barrels is provided with a filter barrel, when one of the filter barrels stores and collects the crystalline substance, the height of the discharging pipe is lowered, and the connecting barrel is rotated, so that the filter barrel can be quickly rotated and taken out from the discharging opening of the reaction tank body, and a new connecting barrel and a filter barrel can be rotated to the storage station, the whole process is rapid and efficient, the time for replacing the filter barrel is saved, and the crystallization efficiency of 2-ethylanthraquinone is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0016] Figure 1 It is the overall structure schematic diagram of the utility model;

[0017] Figure 2 It is the discharging pipe lifting sliding structure schematic diagram of the utility model;

[0018] Figure 3 It is the rotary rod installation structure schematic diagram of the utility model;

[0019] Figure 4 It is the connecting barrel installation structure schematic diagram of the utility model.

[0020] The reference signs in the figures respectively represent:

[0021] 1, tank; 11, feeding hopper; 12, stirring motor;

[0022] 21, discharging pipe; 22, lifting cylinder; 23, L-shaped bent rod;

[0023] 31, rotating motor; 32, rotating shaft; 33, rotating seat; 34, rotating rod; 35, screw;

[0024] 4, connecting cylinder; 41, filtering cylinder; 42, plug-in block. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0026] The present application will be further described in combination with the embodiments.

[0027] Embodiment 1

[0028] Reference Figures 1-4 For the first embodiment of the present application, a kind of crystallization device for 2-ethylanthraquinone intermediate production is disclosed, including tank 1 and the feeding hopper 11 being installed at the top of tank 1 and being communicated with the inner cavity of tank 1, the inner and outer wall of tank 1 is provided with resistance heating ring, the solution in the inner cavity of tank 1 is heated by power load through resistance heating ring, stirring assembly is rotationally arranged in tank 1, discharging pipe 21 is slidingly installed below tank 1, and is opposite to the position of tank 1 discharge port, and bottom is provided with valve, to facilitate the discharge of reaction solution control;

[0029] A plurality of rotating rods 34 are rotationally installed between tank 1 and discharging pipe 21, and the distal end of a plurality of rotating rods 34 is detachably installed with connecting cylinder 4, the two ends of a plurality of connecting cylinders 4 are both throughly arranged and the bottom is both installed with filtering cylinder 41, the top of filtering cylinder 41 is designed as opening, the bottom is designed as closed, a plurality of filter holes are throughly arranged on the outer ring and the bottom, when discharging pipe 21 is sleeved around filtering cylinder 41, because the inner diameter of discharging pipe 21 is larger than the outer diameter of filtering cylinder 41, that is, the reserved gap between the inner wall of discharging pipe 21 and the outer wall of filtering cylinder 41, therefore, the solution filtered through the filter holes on filtering cylinder 41 will automatically fall into discharging pipe 21;

[0030] When one upper barrel port of the connecting barrel 4 is connected with the discharging port of the tank body 1, the ascending height of the discharging pipe 21 is until the corresponding filter barrel 41 is completely wrapped inside, and is connected with the lower barrel port of the connecting barrel 4, that is, the solution discharged from the discharging port of the tank body 1 will first enter into the connecting barrel 4, and is filtered through the filter barrel 41, and is discharged from the discharging pipe 21, and the discharging pipe 21 is connected with the external collecting container in advance;

[0031] Embodiment 2:

[0032] With reference to Figures 1-4 For the second embodiment of the utility model, the difference between the embodiment and the first embodiment is that the stirring assembly comprises a stirring paddle rotatably installed in the inner cavity of the tank body 1, and further comprises a stirring motor 12 installed at the top of the tank body 1 and having an output end fixedly connected with the stirring paddle, and a supporting seat is installed at the bottom of the tank body 1, a lifting cylinder 22 is installed at one side of the supporting seat, an L-shaped bent rod 23 is fixedly installed at the end of the lifting cylinder 22, and the L-shaped bent rod 23 is vertically fixedly installed at the outer pipe wall of the discharging pipe 21.

[0033] A rotating motor 31 is installed at the outer tank wall of the tank body 1, the rotating motor 31 is a servo motor, can rotate once according to the frequency of 90° rotation, the output end of the rotating motor 31 is connected with a rotating shaft 32, the end of the rotating shaft 32 is vertically fixedly installed with a rotating seat 33, a plurality of rotating rods 34 are vertically fixedly installed at the outer ring wall of the rotating seat 33, a plurality of sockets are formed at the ends of the plurality of rotating rods 34 away from the rotating seat 33, a plurality of screws 35 are arranged at the plurality of sockets, a plurality of plug blocks 42 are vertically fixedly connected with the outer barrel walls of the plurality of connecting barrels 4, the plurality of plug blocks 42 are respectively inserted into the corresponding sockets, the plurality of screws 35 are respectively screwed into the corresponding plug blocks 42, a plurality of threaded holes are formed in the plurality of plug blocks 42, and a plurality of round holes are formed in the outer rod walls of the ends of the plurality of rotating rods 34 and penetrating the sockets, when the plug blocks 42 are inserted into the sockets, the screws 35 penetrate the round holes and are screwed into the corresponding threaded holes, so that the quick disassembly and assembly of the connecting barrel 4 and the rotating rod 34 are completed, the plug blocks 42 are matched with the sockets, and therefore the connecting barrel 4 can be kept in the vertical state with the rotating rod 34.

[0034] The remaining structure is the same as that of the first embodiment.

[0035] The working process of the utility model is as follows:

[0036] First, close the valve, and through the hopper 11 into the container diethyl anthraquinone, add a small amount of room temperature mineral oil or ethanol solvent, form a mixed solution, add appropriate inorganic salt (such as NaCl) to form a cell solution, connect the power supply of the resistance heating ring, heat the cell solution to 90-95 DEG C, and then start the stirring motor 12, drive the stirring paddle to rotate, keep stirring for 10-15 minutes, make diethyl anthraquinone crystallize out, open the valve, collect the crystalline through the filter cartridge 41, and discharge the remaining solution through the discharge pipe 21 to the collection container;

[0037] Second, start the lifting cylinder 22, drive the discharge pipe 21 to descend through the L-shaped bending rod 23, until the filter cartridge 41 is completely exposed in the air, then start the rotating motor 31, rotate the connecting cylinder 4 and the filter cartridge 41 away from the discharge opening of the tank body 1, and through the method of unscrewing the screw 35 and extracting the plug-in block 42, disassemble the connecting cylinder 4 and the filter cartridge 41 from the rotating rod 34, filter the crystalline, and dehydrate with ethanol, cool the stable powder crystal, and obtain the required diethyl anthraquinone;

[0038] Finally, while the last connecting cylinder 4 and the filter cartridge 41 are rotated away from the discharge opening of the tank body 1, quickly rotate the unused connecting cylinder 4 and the filter cartridge 41 to the discharge opening of the tank body 1, and then complete the reassembly and splicing by lifting the discharge pipe 21, so as to start the next crystallization filtration conveniently and quickly.

[0039] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A crystallization device for 2-ethylanthraquinone intermediate production, comprising a tank body (1) and a feeding hopper (11) installed on the top of the tank body (1) and communicated with the inner cavity of the tank body (1), the inner and outer walls of the tank body (1) are provided with resistance heating coils, and a stirring assembly is rotatably arranged in the tank body (1), characterized in that, Also include: The blanking tube (21) is installed below the tank body (1) and is opposite to the blanking port of the tank body (1), and the bottom is provided with a valve; A plurality of rotating rods (34) are rotatably installed between the tank body (1) and the blanking tube (21), and the distal ends of the plurality of rotating rods (34) are detachably provided with a connecting barrel (4); Both ends of the connecting barrel (4) are provided with a filter barrel (41), and when the upper barrel port of one of the connecting barrels (4) is communicated with the blanking port of the tank body (1), the blanking tube (21) is raised to a height until the corresponding filter barrel (41) is completely wrapped inside and communicated with the lower barrel port of the connecting barrel (4).

2. The crystallization apparatus for 2-ethylanthraquinone intermediate production according to claim 1, characterized by, The stirring assembly comprises a stirring paddle rotatably installed in the inner cavity of the tank body (1), and a stirring motor (12) installed on the top of the tank body (1) and having an output end fixedly connected with the stirring paddle, and a support seat is installed on the bottom of the tank body (1).

3. The crystallization apparatus for producing 2-ethylanthraquinone intermediates according to claim 2, characterized by One side of the support seat is provided with a lifting cylinder (22), and the top output end of the lifting cylinder (22) is fixedly connected with an L-shaped bent rod (23), and the distal end of the L-shaped bent rod (23) is vertically fixedly installed on the outer tube wall of the blanking tube (21).

4. The crystallization apparatus for producing 2-ethylanthraquinone intermediates according to claim 1, characterized by The outer tank wall of the tank body (1) is provided with a rotating motor (31), the output end of the rotating motor (31) is connected with a rotating shaft (32), and the distal end of the rotating shaft (32) is vertically fixedly installed with a rotating seat (33).

5. The crystallization apparatus for producing 2-ethylanthraquinone intermediates according to claim 4, characterized by The outer ring wall of the rotating seat (33) is vertically fixedly installed with a plurality of rotating rods (34), and the distal end of the rotating rod (34) is provided with a socket, and the socket is provided with a screw (35).

6. The crystallization apparatus for producing 2-ethylanthraquinone intermediates according to claim 5, characterized by The outer barrel wall of the connecting barrel (4) is vertically fixedly connected with a plug (42), the plug (42) is inserted into the corresponding socket, and the screw (35) is screwed into the plug (42).

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