CN215841712U

CN215841712U - Chloroacetic acid crystallization agitating unit

Info

Publication number: CN215841712U
Application number: CN202121939145.XU
Authority: CN
Inventors: 朱青峰
Original assignee: Shizuishan United Lifeng Biotechnology Co ltd
Current assignee: Shizuishan United Lifeng Biotechnology Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-02-18
Anticipated expiration: 2031-08-18

Abstract

The utility model belongs to the technical field of chloroacetic acid crystallization, and particularly relates to a chloroacetic acid crystallization stirring device which comprises a kettle body and a feed hopper, wherein the feed hopper is communicated with the top of the kettle body; the baffle is fixed on the central inner wall of the kettle body, a backflow cover is fixed on the top surface of the baffle, a plurality of through holes which are uniformly distributed are formed in the baffle and positioned in the backflow cover, a plurality of backflow holes which are uniformly distributed are formed in the side wall of the top of the backflow cover, and a helical blade which is tightly sleeved with the outer surface of the rotating shaft is arranged in the backflow cover; the utility model enables the helical blades, the scraping rod and the anchor rod to synchronously rotate, so that the mixing strength of chloroacetic acid crystals at the center of the kettle body is enhanced, and the swirling phenomenon is eliminated.

Description

Chloroacetic acid crystallization agitating unit

Technical Field

The utility model relates to the technical field of chloroacetic acid crystallization, in particular to a chloroacetic acid crystallization stirring device.

Background

Chloroacetic acid is an important organic chemical raw material and is widely applied to the fields of pesticides, medicines, dyes, daily chemicals, surfactants, chemical reagents, papermaking chemicals, perfume and essence and the like; in the field of pesticides, chloroacetic acid is used in the synthesis of more than 20 pesticides, such as insecticides, herbicides, plant growth regulators and the like, according to the incomplete statistics; in the aspect of medicine, chloroacetic acid is a very useful medical raw material, can synthesize a plurality of medicines, and is mainly used for preparing sedatives, hormones, vitamin medicines and the like; in the aspect of organic synthesis, chloroacetic acid is a good raw material for fine chemicals and has great market potential.

The anchor type paddle of the traditional crystallization stirring device is close to the bottom of the crystallization kettle when being installed, so that the suspension height of chloroacetic acid crystals is low, most of chloroacetic acid crystals are concentrated on the middle lower part of the kettle, the upper part of the chloroacetic acid crystals is seriously swirled, the mixing action of materials is very low, the mixing time is very long, and the crystallization period is long.

Therefore, a chloroacetic acid crystallization stirring device is needed to solve the problems of serious top swirling phenomenon of the kettle body, poor material mixing effect and low crystallization efficiency during the crystallization treatment of chloroacetic acid crystals.

SUMMERY OF THE UTILITY MODEL

The chloroacetic acid crystallization stirring device provided by the utility model solves the problems of serious top swirling phenomenon, poor material mixing effect and low crystallization efficiency when the chloroacetic acid crystals are crystallized.

In order to achieve the purpose, the utility model adopts the following technical scheme: a chloroacetic acid crystallization agitating unit, includes the cauldron body, the cauldron body still includes

The feeding hopper is communicated with the top of the kettle body, the bottom of the kettle body is communicated with a discharging pipe, the inner wall of the kettle body is rotatably connected with a rotating shaft, and the top of the kettle body is provided with a rotating motor connected with the rotating shaft;

the baffle, the baffle is fixed in the central inner wall department of the cauldron body, the top surface of baffle is fixed with the backward flow cover, a plurality of through-holes that are evenly distributed are seted up to the inside that the baffle is located the backward flow cover, a plurality of backward flow holes that are evenly distributed are seted up to the top lateral wall of backward flow cover, the inside of backward flow cover is provided with the helical blade who cup joints with the fastening of pivot surface, the below of baffle is provided with the stock that cup joints with the fastening of pivot surface, the bottom of baffle is provided with the backward flow subassembly.

Preferably, the reflow assembly includes

A plurality of suspension holes are formed in the suspension holes, the plurality of suspension holes are uniformly formed in the top surface of the baffle, and a material blocking cover fixed with the inner wall of the bottom of the baffle is arranged among the plurality of suspension holes;

the scraping rod is provided with a plurality of scraping rods, the scraping rod is multiple in number, the scraping rod is fixed to the outer surface of the rotating shaft, the scraping rod is in contact with the inner wall of the material blocking cover, and the top surface and the bottom surface of the baffle are both fixed with flow guide rings.

Preferably, the inner surface of the guide ring is arranged in an arc surface, and the top end of the anchor rod is in contact with the guide ring at the bottom.

Preferably, a separation cover is fixed between the reflux cover and the inner wall of the top of the kettle body, the inner surface of the bottom of the separation cover is in an arc surface arrangement, and the inner surface of the top of the separation cover is in a funnel shape.

Preferably, the tip of the spiral blade extends to the inside of the separation hood, and the size of the spiral blade is in contact with the size of the backflow hood.

Preferably, the bottom surface of the kettle body is arranged in an arc surface mode, and the bottom surface of the anchor rod is matched with the contact surface of the kettle body in the arc surface mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the rotating shaft is driven to synchronously rotate by the rotating motor, at the moment, the helical blade, the scraping rod and the anchor rod synchronously rotate, and the chloroacetic acid crystals at the middle lower part of the kettle body enter the reflux cover from the top of the reflux hole through the action of the suspension hole through the helical rotation of the helical blade in the reflux cover, are conveyed to the through hole through the helix of the helical blade and are blocked by the blocking cover, so that the mixing strength of the chloroacetic acid crystals at the center of the kettle body is ensured, the rotation phenomenon is eliminated, and the volume of the circulating flow is large when the helical blade, the anchor rod and the scraping rod synchronously rotate, so that a very small rotating speed is kept during operation, a good flow pattern can be formed, crystal nucleus particles move up and down along with a liquid phase, and the growth of the chloroacetic acid crystals is facilitated.

2. The arrangement of the separation cover is convenient for materials to be concentrated in the backflow cover to carry out spiral feeding to the center of the kettle body for chloroacetic acid crystallization treatment, and chloroacetic acid crystals can be blocked to a certain extent during backflow, so that the chloroacetic acid crystals can be conveniently and fully refluxed through the flow of solution in the backflow cover, the mixing strength of the center part of the chlorination liquid of the materials is improved, and the top swirling phenomenon is eliminated.

Drawings

FIG. 1 is a schematic view of the overall structure of a chloroacetic acid crystallization stirring device according to the present invention;

FIG. 2 is a schematic view of a partial structure inside a kettle body of a chloroacetic acid crystallization stirring device provided by the utility model;

FIG. 3 is a schematic view of a partial structure of a reflux assembly of a chloroacetic acid crystallization stirring apparatus according to the present invention;

fig. 4 is a partial structural schematic diagram of the anchor rod of the chloroacetic acid crystallization stirring device provided by the utility model.

In the figure: 1. a kettle body; 2. a feed hopper; 3. a discharge pipe; 4. a rotating shaft; 5. rotating the motor; 6. a baffle plate; 7. a reflow hood; 8. a through hole; 9. a return orifice; 10. a helical blade; 11. an anchor rod; 12. a reflow assembly; 121. a suspension hole; 122. a material blocking cover; 123. a scraping rod; 124. a flow guide ring; 13. a separation hood.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a chloroacetic acid crystallization stirring device comprises a kettle body 1, wherein the kettle body 1 further comprises a feed hopper 2, the feed hopper 2 is communicated with the top of the kettle body 1, the bottom of the kettle body 1 is communicated with a discharge pipe 3, the inner wall of the kettle body 1 is rotatably connected with a rotating shaft 4, and the top of the kettle body 1 is provided with a rotating motor 5 connected with the rotating shaft 4; the device comprises a baffle 6, wherein the baffle 6 is fixed on the central inner wall of the kettle body 1, a backflow cover 7 is fixed on the top surface of the baffle 6, a plurality of through holes 8 which are uniformly distributed are formed in the baffle 6 positioned in the backflow cover 7, a plurality of backflow holes 9 which are uniformly distributed are formed in the side wall of the top of the backflow cover 7, a helical blade 10 which is tightly sleeved with the outer surface of a rotating shaft 4 is arranged in the backflow cover 7, an anchor rod 11 which is tightly sleeved with the outer surface of the rotating shaft 4 is arranged below the baffle 6, a backflow component 12 is arranged at the bottom of the baffle 6, and particularly, the height of chloroacetic acid solution is not lower than that of the backflow holes 9 and is used for ensuring that chloroacetic acid crystal suspended matters flow back; through the drive of rotating motor 5, it rotates to drive pivot 4, make helical blade 10 and stock 11 carry out synchronous rotation, thereby make the chloroacetic acid crystal of suspension in the 1 bottom of the cauldron body assemble at the lateral wall edge of the cauldron body 1, rotation through helical blade 10, thereby make the effect that the chloroacetic acid crystal passes through backward flow subassembly 12, flow back chloroacetic acid crystal suspended solid, thereby make the chloroacetic acid crystal mix the stirring in the center department of the cauldron body 1, strengthen the mixing strength at chlorination liquid center part, eliminate and beat the phenomenon of revolving, screw conveyor through helical blade 10, its circulation flow volume is great, keep very little rotational speed when the operation, just can form fine flow pattern, make the crystal nucleus granule along with liquid phase up-and-down motion, be favorable to the growth of chloroacetic acid crystal.

The backflow component 12 comprises a plurality of suspension holes 121, the suspension holes 121 are uniformly formed in the top surface of the baffle 6, and a material blocking cover 122 fixed with the inner wall of the bottom of the baffle 6 is arranged between the plurality of suspension holes 121; the scraping rods 123 are arranged, the scraping rods 123 are fixed to the outer surface of the rotating shaft 4, the scraping rods 123 are in contact with the inner wall of the material blocking cover 122, the guide rings 124 are fixed to the top surface and the bottom surface of the baffle 6, specifically, the spiral blade 10 is used for spiral rotation in the backflow cover 7, so that chloroacetic acid crystals below the baffle 6 of the kettle body 1 are rotated through the spiral blade 10, the chloroacetic acid crystals reach the backflow hole 9 through the suspension hole 121, and then the chloroacetic acid crystals are conveyed to the lower side of the material blocking cover 122 through the spiral blade 10 in a spiral mode for mixing again, so that the mixing effect of the chloroacetic acid crystals at the center of the kettle body 1 is greatly improved, the swirling phenomenon of the materials at the top is eliminated, and the scraping rods 123 are arranged, so that the chloroacetic acid crystals can be effectively prevented from accumulating on the top surface of the baffle 6, and the mixing effect of the chloroacetic acid solution can be greatly improved; the setting of water conservancy diversion ring 124 for the better 6 tops of baffle of reacing from the 1 edge of the cauldron body of chloroacetic acid crystal suspended solid flow back, thereby improve the mixed stirring effect of material in the 1 center department of the cauldron body.

The inner surface of water conservancy diversion ring 124 is the cambered surface setting, and the top of stock 11 contacts with the water conservancy diversion ring 124 that is located the bottom, and is concrete, the setting of water conservancy diversion ring 124 cambered surface improves the convenience that chloroacetic acid crystal suspended solid gets into backward flow hole 9 department through suspension hole 121, and the setting of stock 11 length is because its oar footpath is big, is difficult for producing the blind spot, only produces the tangent line and flows, and shearing action is little is favorable to the production of great crystal grain.

Be fixed with between the top inner wall of backward flow cover 7 and the cauldron body 1 and separate cover 13, the bottom internal surface that separates cover 13 is the cambered surface setting, the top internal surface that separates cover 13 is hourglass hopper-shaped, separate the setting of cover 13, the material of being convenient for is concentrated and is carried out spiral feeding to cauldron body 1 center department and carry out chloroacetic acid crystallization in backward flow cover 7, and can make the chloroacetic acid crystal carry out the separation of certain degree when carrying out the backward flow, thereby it carries out abundant backward flow through solution flow in the backward flow cover 7 to be convenient for, thereby improve the chlorination liquid central part's of material mixing strength, eliminate the top and beat the phenomenon of revolving.

The top of helical blade 10 extends to the inside of separating the cover 13, and helical blade 10's size contacts with the size of backward flow cover 7, and the helical blade 10 of being convenient for carries out better auger delivery to chloroacetic acid crystal suspended solid and handles to make chloroacetic acid crystal suspended solid reach 1 center department of cauldron body and mix, effectively improve the crystallization efficiency of chloroacetic acid crystal.

The bottom surface of the kettle body 1 is in arc surface arrangement, the bottom surface of the anchor rod 11 and the contact surface of the kettle body 1 are arc surfaces matched with each other, specifically, chloroacetic acid crystal suspended matters are prevented from accumulating at the bottom of the kettle body 1, and therefore the stirring mixed crystallization effect at the center of the kettle body 1 is improved.

The working principle is as follows: when chloracetic acid crystallization stirring treatment is carried out on the chlorination liquid, the rotating shaft 4 is driven to synchronously rotate by the driving of the rotating motor 5, at the moment, the helical blade 10, the scraping rod 123 and the anchor rod 11 synchronously rotate, because the diameter of the anchor rod 11 is large, when the stirring crystallization treatment is carried out in the kettle body 1, dead zones are not easily generated, and tangential flow is generated, the shearing action is small, which is favorable for generating larger chloracetic acid crystal particles, so that the chloracetic acid crystal is suspended at the bottom edge of the kettle body 1, and the spiral rotation of the helical blade 10 in the backflow cover 7 is realized, so that the chloracetic acid crystal at the middle lower part of the kettle body 1 enters the backflow cover 7 from the top of the backflow hole 9 through the effect of the suspension hole 121, is conveyed to the through hole 8 through the spiral of the helical blade 10, and the blocking effect of the material blocking cover 122 is realized, so that the mixing strength of the chloracetic acid crystal at the center of the kettle body 1 is realized, the phenomenon of rotation is eliminated; through helical blade 10 internal screw rotation in the backward flow cover 7 for chloroacetic acid crystal flows back in the cauldron body 1, and its fluid exhaust direction when the operation is the 4 directions of pivot, has effectively avoided too much secondary nucleation of chloroacetic acid, and helical blade 10, stock 11 and scraping rod 123 synchronous rotation its circulation flow volume of flow volume is great, keeps very little rotational speed when the operation, just can form fine flow pattern, makes the crystal nucleus granule along with liquid phase up-and-down motion, is favorable to chloroacetic acid crystal's growth.

The rotating motor 5 is commercially available, and the rotating motor 5 is provided with a power supply, which belongs to the mature technology in the field and is fully disclosed, so repeated description in the specification is omitted.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The chloroacetic acid crystallization stirring device comprises a kettle body (1), and is characterized in that the kettle body (1) further comprises

The device comprises a feeding hopper (2), wherein the feeding hopper (2) is communicated with the top of a kettle body (1), a discharging pipe (3) is communicated with the bottom of the kettle body (1), the inner wall of the kettle body (1) is rotatably connected with a rotating shaft (4), and a rotating motor (5) connected with the rotating shaft (4) is installed at the top of the kettle body (1);

baffle (6), baffle (6) are fixed in the central inner wall department of the cauldron body (1), the top surface of baffle (6) is fixed with backward flow cover (7), a plurality of through-holes (8) that are evenly distributed are seted up to the inside that baffle (6) are located backward flow cover (7), a plurality of backward flow holes (9) that are evenly distributed are seted up to the top lateral wall of backward flow cover (7), the inside of backward flow cover (7) is provided with helical blade (10) that cup joint with pivot (4) surface fastening, the below of baffle (6) is provided with stock (11) that cup joint with pivot (4) surface fastening, the bottom of baffle (6) is provided with backward flow subassembly (12).

2. A chloroacetic acid crystallization stirring device according to claim 1, characterized in that said reflux assembly (12) comprises

A plurality of suspension holes (121), wherein the suspension holes (121) are uniformly formed in the top surface of the baffle plate (6), and material blocking covers (122) fixed with the inner wall of the bottom of the baffle plate (6) are arranged among the suspension holes (121);

scrape pole (123), it is provided with a plurality ofly to scrape pole (123), it is a plurality of scrape pole (123) with the external surface of pivot (4) is fixed, scrape pole (123) with the inner wall contact of striker cover (122), the top surface and the bottom surface of baffle (6) all are fixed with water conservancy diversion ring (124).

3. The chloroacetic acid crystallization stirring device of claim 2, characterized in that the inner surface of the deflector ring (124) is cambered, and the top end of the anchor rod (11) is in contact with the deflector ring (124) at the bottom.

4. The chloroacetic acid crystallization stirring device of claim 1, wherein a separation cover (13) is fixed between the reflux cover (7) and the top inner wall of the kettle body (1), the bottom inner surface of the separation cover (13) is arranged in an arc shape, and the top inner surface of the separation cover (13) is in a funnel shape.

5. A chloroacetic acid crystallization stirring device according to claim 4, characterized in that the tip of said helical blade (10) extends to the inside of said separation hood (13), said helical blade (10) being sized to contact with the size of said reflux hood (7).

6. The chloroacetic acid crystallization agitating unit of claim 1, wherein the bottom surface of the kettle body (1) is in an arc surface configuration, and the bottom surface of the anchor rod (11) and the contact surface of the kettle body (1) are in a matched arc surface configuration.