CN218793970U - Automatically cleaning crystallizer - Google Patents

Abstract

The application discloses a self-cleaning crystallization tank, which comprises an inner barrel, wherein the inner barrel comprises an upper end socket, an inner barrel body and a lower end socket which are arranged from top to bottom; the lower extreme of hollow rotating shaft vertically stretches into the inside of interior barrel and low head, and the lower extreme of hollow rotating shaft sets up stirring rake and many and the communicating heating branch pipe of hollow rotating shaft liquid path, evenly offers a plurality of liquid holes on the heating branch pipe, and the outside of stirring rake is provided with the scraper, and the scraper outside is close to in inner tube inner wall and unanimous with inner tube inner wall surface radian. The device structure solves the problems that the traditional crystallizing tank is long in cleaning time, difficult to clean, incomplete in cleaning and incapable of recycling waste water, and the crystallizing tank is more convenient to clean through the novel stirring device; the cleaning is more thorough through the spraying and washing device, and the cleaning liquid is recycled through the mother liquor dissolving and cleaning.

Description

Automatically cleaning crystallizer

Technical Field

The invention relates to a self-cleaning crystallizing tank, which is suitable for equipment of a crystallizing process in the industries of medicine, food and chemical industry and is used for crystallizing materials.

Background

Crystallization is a very important part in the pharmaceutical, food and chemical industries. Usually, the crystallization process has good selectivity, most impurities can be left in the mother liquor through the crystallization operation, and high-purity crystals are obtained through operations such as filtration, washing and the like, and the method is one of main means for purifying materials. Therefore, the crystallizer is a very common device in the industry. However, the design of the crystallization tank focuses on how to improve the thickness, quality, crystallization time and the like of the crystals, and the equipment internal structure is considered to be free of dead angles, the properties and viscosity of the solution, the impurities (purity) contained in the solution, the size, growth time and shape of the crystals and the growth speed of the crystals, namely the mixing effect of the production process and the stirring device is considered to be not the requirement of meeting the crystallization, and the problem of cleaning waste residues after the crystallization of the crystallization tank is not considered. If the time for cleaning the waste residues can be reduced, the utilization rate of a single tank is improved, and the production efficiency of the crystallizing tank can be greatly improved. Meanwhile, residual liquid is recycled, and the production cost is reduced.

Disclosure of Invention

Aiming at the problems that the traditional crystallizing tank waste residue cleaning time is long, the cleaning is difficult, the cleaning is not thorough, and the cleaning liquid cannot be recycled in the prior art, the invention aims to provide a self-cleaning crystallizing tank. According to the self-cleaning crystallization tank, the purpose of rapidly cleaning waste residues is achieved by adding a proper process and a proper mechanical method. The crystallizer equipped with the stirring device has the function of timely cleaning residues without adding any external components, thereby achieving the purposes of shortening the time for cleaning the residues and simultaneously keeping the mother liquor of the main components of the residues to be recycled. Thereby shortening the period of the crystallization process, increasing the utilization rate of the crystallization tank, improving the production efficiency and reducing the cleaning cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a self-cleaning crystallizer, includes the inner tube, and the inner tube includes top head, interior barrel and the low head that top-down set up, and the outside of inner tube is provided with presss from both sides the cover, press from both sides the cover including pressing from both sides the cover barrel and set up in the cover head that presss from both sides cover barrel bottom, press from both sides the cover barrel and set up in the outside of interior barrel, press from both sides the cover head and set up in the outside of low head, be provided with heat transfer medium import and heat transfer medium export on the cover barrel to heat transfer medium is let in to pressing from both sides the cover in, for providing the heat transfer in the inner tube.

Wherein, the bottom of the lower end enclosure is connected with a discharge pipe, and the outlet end of the discharge pipe outwards penetrates out of the jacket end enclosure and is provided with a discharge valve.

Furthermore, a stirring device is arranged on the inner cylinder, the stirring device comprises a hollow rotating shaft which extends into the inner cylinder from the upper end enclosure and can be introduced with heating and dissolving mother liquor, and a liquid inlet is formed in the upper end of the hollow rotating shaft and is connected with a motor so as to drive the hollow rotating shaft to rotate under the work of the motor; the lower extreme of hollow rotating shaft vertically stretches into the inside of interior barrel and low head, and the lower extreme of hollow rotating shaft sets up stirring rake and many and the communicating heating branch pipe of hollow rotating shaft liquid path, evenly offers a plurality of liquid holes on the heating branch pipe, and the outside of stirring rake is provided with the scraper, and the scraper outside is close to in inner tube inner wall and unanimous with inner tube inner wall surface radian.

Furthermore, the stirring paddle is an anchor type stirring paddle, the stirring paddle is arranged at the lower end of the hollow rotating shaft, and the mother liquor can be uniformly stirred under low-speed stirring. The scraper is matched with the shape of the stirring paddle and comprises an upper part and a lower part, and the shape of the section of the upper end of the scraper is matched with the inner wall of the inner cylinder body and used for scraping crystals on the inner wall of the inner cylinder body; the shape of the cross section of the lower end of the scraper is an arc structure consistent with the radian of the surface of the inner wall of the lower end socket and is used for scraping crystals on the inner wall of the lower end socket; that is, the scraper is arranged outside the stirring paddle, is consistent with the radian of the inner wall surface of the inner cylinder, and has a gap with the inner cylinder.

Wherein, the heating branch pipe is arranged between the lower ends of the stirring paddle and the hollow rotating shaft. The heating branch pipe has many, and one end and the lower extreme intercommunication of hollow rotating shaft, the other end welding are on the stirring rake, according to the position difference, can be the level and arrange or vertical the arranging. In addition, the lower end of the hollow rotating shaft can do up-and-down telescopic motion.

The self-cleaning crystallization tank is characterized in that the stirring device performs rotary stirring motion on the inner cylinder and can also perform lifting and descending motion in the inner cylinder.

Furthermore, the stirring device also comprises a transmission device arranged on the upper end enclosure, and the transmission device is connected with the motor and provides power for the stirring device. The hollow rotating shaft comprises an outer sleeve and an inner telescopic pipe arranged on the inner side of the outer sleeve, the outer sleeve and the inner telescopic pipe are connected in a sealing mode, and the inner telescopic pipe can be stretched up and down compared with the outer sleeve. The upper end of the outer sleeve upwards penetrates through the upper end socket in a sealing manner and is rotationally connected with a transmission device, and the transmission device is connected with a motor and can drive the outer sleeve and the inner telescopic pipe to rotate together under the work of the motor; wherein, the upper end of the inner telescopic pipe upwards penetrates out of the outer sleeve, and the inlet at the upper end of the inner telescopic pipe is connected with a liquid inlet pipe for introducing heating and dissolving mother liquid in a rotating and sealing manner.

Wherein, the heating branch pipe is arranged at the lower end of the inner telescopic pipe. The top of the upper end enclosure is also provided with a supporting bracket capable of adjusting the height up and down, the upper end side part of the inner telescopic pipe is rotatably connected with the supporting bracket, the supporting bracket is used for supporting and supporting the inner telescopic pipe, and the inner telescopic pipe can rotate on the supporting bracket.

Further, transmission includes the support cover of installation on the upper cover head and the fixed belt pulley that sets up in the outer sleeve pipe upper end outside, but belt pulley horizontal rotation's installation is on the support cover, and the belt pulley passes through the output shaft of belt and motor, can drive the outer tube and rotate from this under motor work.

Furthermore, a vertical protruding key is arranged on the outer side of the inner telescopic pipe, a matched straight key groove is formed in the inner wall of the outer sleeve, the protruding key on the outer side of the inner telescopic pipe is matched and embedded into the straight key groove in the inner wall of the outer sleeve, and the inner telescopic pipe and the outer sleeve are sealed through a sealing ring. The side part of the upper end of the inner telescopic pipe is provided with a rotating wheel, and the rotating wheel is connected with the supporting bracket capable of adjusting the height up and down in a rotating mode.

The self-cleaning crystallizing tank is characterized in that the inner cylinder is also provided with a spraying and washing device for spraying and washing crystals in the inner cylinder.

In the device structure of this application, agitating unit includes scraper, stirring rake, hollow pivot, transmission, heating branch pipe. The purpose of the design is to remove the crystals by appropriate processes and mechanical methods. The design idea is that residual crystal on the inner cylinder wall is scraped off by a scraper along with the mechanical rotation motion of the hollow rotating shaft, and mother liquor in the hollow rotating shaft and the heating branch pipe is properly sprayed on the stirring paddle and the inner cylinder wall to dissolve the crystal. The spraying and flushing device is used for assisting in flushing residual crystals on the inner cylinder wall. The device structural design of this application's advantage lies in: the hollow rotating shaft drives the stirring paddle to move upwards after the stirring action is finished according to the requirement, and the stirring paddle is driven to move downwards in the cleaning stage. The edge of the outer side of the stirring shaft is provided with a scraper, the radian of the scraper is matched with the inner cylinder wall, and the crystal can be more conveniently scraped. The stirring paddle is provided with a heating branch pipe, so that the stirring paddle is reinforced and is sprayed to dissolve crystals on the stirring paddle.

The invention has the beneficial effects that:

1) Crystals are removed through a scraper machine, and crystals on the inner cylinder are effectively dissolved through spraying mother liquor from the heating branch pipe and the nozzle. The crystallizing tank does not need to add any external component, and crystal residues are cleaned in time, so that the time for cleaning the residues is shortened, the period of a crystallization process is shortened, the utilization rate of the crystallizing tank is increased, and the production efficiency is improved. Meanwhile, mother liquor which retains main components of the residue can be recycled to achieve the purpose of reducing the cleaning cost.

2) If stir to the mother liquor that lets in certain liquid layer thickness to the inner tube and scrape the brilliant, then under the existence circumstances of a large amount of mother liquors, easy emergence recrystallization in the long time operation process, the crystallization grain size of different times is inconsistent, can influence the product quality. And this application gets rid of the in-process of crystallization with scraper machinery, when spraying a small amount of mother liquor through heating branch pipe, nozzle and dissolve the crystallization for abluent mother liquor can direct outwards be discharged, avoids long-time deposit to take place the recrystallization in the inner tube.

Drawings

FIG. 1 is a schematic structural view of a novel self-cleaning crystallization tank of the present application;

FIG. 2 is a schematic structural view of an inner barrel and jacket assembly of the present application;

FIG. 3 is a schematic view of the stirring device of the present application;

in FIG. 1, 1-inner cylinder, 2-jacket, 3-stirring device, 4-spray flushing device;

in FIG. 2, 101-lower end enclosure, 102-inner cylinder, 103-upper end enclosure; 201-jacket end enclosure, 202-jacket cylinder;

in fig. 3, 301-scraper, 302-stirring paddle, 303-stirring shaft, 304-stirring power device, 305-heating manifold.

Detailed Description

The invention is further illustrated with reference to the following specific examples, without limiting the scope of the invention thereto.

The embodiment is as follows: compare FIGS. 1-3

A self-cleaning crystallization tank comprises an inner cylinder 1, a jacket 2, a stirring device 3 arranged on the inner cylinder 1 and a spraying and washing device 4 arranged on the inner cylinder 1. The inner cylinder 1 comprises an upper seal head 103, an inner cylinder 102 and a lower seal head 101 which are arranged from top to bottom, a jacket 2 is arranged on the outer side of the inner cylinder 1, the jacket 2 comprises a jacket cylinder 202 and a jacket seal head 201 arranged at the bottom of the jacket cylinder 202, the jacket cylinder 202 is arranged on the outer side of the inner cylinder 102, the jacket seal head 201 is arranged on the outer side of the lower seal head 101, and a heat transfer medium inlet and a heat transfer medium outlet are arranged on the jacket cylinder 202 so as to introduce heat transfer medium into the jacket 2 and provide heat transfer for the inner cylinder 1.

Referring to fig. 3, the stirring device 3 includes a hollow rotating shaft extending from the upper end enclosure 103 into the inner cylinder 1 and into which the heating and dissolving mother liquor can be introduced, and a liquid inlet is arranged at the upper end of the hollow rotating shaft and connected with a motor so as to drive the hollow rotating shaft to rotate under the operation of the motor; the lower extreme of hollow rotating shaft vertically stretches into the inside of barrel 102 and low head 101 in, and the lower extreme of hollow rotating shaft sets up stirring rake 302 and many and the communicating heating branch pipe 305 of hollow rotating shaft liquid path, evenly offers a plurality of liquid holes on the heating branch pipe 305, and the outside of stirring rake 302 is provided with scraper 301, and the scraper 301 outside is close to in 1 inner wall of inner tube and unanimous with 1 inner wall surface radian in inner tube. A gap is arranged between the outer side of the scraper 301 and the inner wall of the inner cylinder 1.

The stirring paddle 302 is an anchor type stirring paddle, the scraper 301 is matched with the stirring paddle 302 in shape, the scraper 301 comprises an upper part and a lower part, and the shape of the cross section of the upper end of the scraper 301 is matched with the inner wall of the inner cylinder 102 and used for scraping crystals on the inner wall of the inner cylinder 102; the cross-section of the lower end of the scraper 301 is in an arc structure with the same radian as the surface of the inner wall of the lower seal head 101, and is used for scraping crystals on the inner wall of the lower seal head 101. Wherein, the heating branch pipe 305 is arranged between the stirring paddle 302 and the lower end of the hollow rotating shaft. The heating branch pipes 305 have a plurality of ends, one end of each heating branch pipe is communicated with the lower end of the hollow rotating shaft, and the other end of each heating branch pipe is welded on the stirring paddle 302 and can be arranged horizontally or vertically according to different positions.

The stirring device 3 further comprises a transmission 304 mounted on the upper head 103. In order to realize that the interior of the hollow rotating shaft can be filled with heating and dissolving mother liquor and the hollow rotating shaft can be driven by a motor to rotate, the following structures can be arranged:

the hollow shaft comprises an outer sleeve 306 and an inner telescopic pipe 303 arranged on the inner side of the outer sleeve 306, the outer sleeve 306 and the inner telescopic pipe 303 are connected in a sealing manner, and the inner telescopic pipe 303 can be stretched up and down compared with the outer sleeve 306. Furthermore, a vertical protruding key is arranged on the outer side of the inner telescopic pipe 303, a matched straight key groove is formed in the inner wall of the outer sleeve 306, the protruding key on the outer side of the inner telescopic pipe 303 is matched and embedded into the straight key groove in the inner wall of the outer sleeve 306, and the inner telescopic pipe 303 and the outer sleeve 306 are sealed through a sealing ring.

The upper end of the outer sleeve 306 passes through the upper seal head 103 upwards in a sealing way and is connected with the transmission device 304 in a rotating way, and the transmission device 304 is connected with the motor to provide power for the stirring device 3. The outer sleeve 306 and the inner telescopic pipe 303 can be driven to rotate together under the work of the motor; wherein, the upper end of the inner telescopic pipe 303 upwards penetrates out of the outer sleeve 306, and the upper end inlet of the inner telescopic pipe 303 is connected with a liquid inlet pipe for introducing heating and dissolving mother liquor in a rotating and sealing manner.

Specifically, the transmission device 304 comprises a support cover mounted on the upper end enclosure 103 and a belt pulley fixedly arranged on the outer side of the upper end of the outer sleeve 306, the belt pulley is horizontally rotatably mounted on the support cover, and the belt pulley is connected with an output shaft of the motor through a belt, so that the outer sleeve 306 can be driven to rotate under the operation of the motor.

Referring to fig. 1, the heating branch pipe 305 is disposed at the lower end of the inner telescopic pipe 303.

In order to support and lift the inner telescopic tube 303, the following structure can be provided: the top of the upper end enclosure 103 is further provided with a support bracket capable of adjusting height up and down, and the upper end side of the inner telescopic pipe 303 is provided with a rotating wheel which is rotatably connected with the support bracket capable of adjusting height up and down (specifically, refer to the connection mode of the transmission device 304 and the outer sleeve 306). Therefore, the upper end side part of the inner telescopic pipe 303 is rotatably connected with the support bracket, the support bracket can support and lift the inner telescopic pipe 303, and the inner telescopic pipe 303 can rotate on the support bracket.

The spraying and washing device 4 is used for washing the inner wall of the tank body in an all-dimensional manner, and the structure of the spraying and washing device 4 is the conventional technology and can be purchased in the market.

The application discloses device structure solution traditional crystallizer cleaning time is long, difficult washing, wash not thorough, the unable recycle's of waste water problem. The novel stirring device is adopted, so that the crystallization tank is more convenient to clean; the cleaning is more thorough by adopting the spraying and washing device, and the cleaning liquid is recycled by dissolving and cleaning the mother liquor.

The statements in this specification merely set forth a list of implementations of the inventive concept and the scope of the present invention should not be construed as limited to the particular forms set forth in the examples.

Claims (8)

1. A self-cleaning crystallization tank is characterized by comprising an inner barrel (1), wherein the inner barrel (1) comprises an upper seal head (103), an inner barrel body (102) and a lower seal head (101) which are arranged from top to bottom, a stirring device (3) is arranged on the inner barrel (1), the stirring device (3) comprises a hollow rotating shaft which extends into the inner barrel (1) from the upper seal head (103) and can be introduced with a heating and dissolving mother solution, and a liquid inlet is arranged at the upper end of the hollow rotating shaft and is connected with a motor so as to drive the hollow rotating shaft to rotate under the work of the motor; the lower end of the hollow rotating shaft vertically extends into the inner barrel (102) and the lower end enclosure (101), the lower end of the hollow rotating shaft is provided with a stirring paddle (302) and a plurality of heating branch pipes (305) communicated with a liquid path of the hollow rotating shaft, the heating branch pipes (305) are uniformly provided with a plurality of liquid outlet holes, the outer side of the stirring paddle (302) is provided with a scraper (301), and the outer side of the scraper (301) is close to the inner wall of the inner barrel (1) and consistent with the surface radian of the inner wall of the inner barrel (1).

2. A self-cleaning crystallizing tank as claimed in claim 1, characterized in that the stirring paddle (302) is an anchor type stirring paddle, the scraper (301) is adapted to the shape of the stirring paddle (302), the scraper (301) comprises an upper part and a lower part, the cross section of the upper end of the scraper (301) is adapted to the inner wall of the inner cylinder (102) for scraping the crystals on the inner wall of the inner cylinder (102); the cross section of the lower end of the scraper (301) is of an arc structure with the radian consistent with that of the surface of the inner wall of the lower end socket (101) and is used for scraping crystals on the inner wall of the lower end socket (101);

wherein, the heating branch pipe (305) is arranged between the stirring paddle (302) and the lower end of the hollow rotating shaft.

3. A self-cleaning crystallization tank as claimed in claim 1, characterized in that the stirring device (3) further comprises a transmission device (304) mounted on the upper head (103); the hollow rotating shaft comprises an outer sleeve (306) and an inner telescopic pipe (303) arranged on the inner side of the outer sleeve (306), the outer sleeve (306) and the inner telescopic pipe (303) are connected in a sealing mode, and the inner telescopic pipe (303) can stretch up and down compared with the outer sleeve (306);

the upper end of the outer sleeve (306) penetrates through the upper end socket (103) upwards in a sealing manner and is rotationally connected with the transmission device (304), the transmission device (304) is connected with the motor, and the outer sleeve (306) and the inner telescopic pipe (303) can be driven to rotate together under the working of the motor; wherein, the upper end of the inner telescopic pipe (303) upwards penetrates out of the outer sleeve (306), and the inlet at the upper end of the inner telescopic pipe (303) is connected with a liquid inlet pipe for introducing heating and dissolving mother liquor in a rotating and sealing way;

wherein the heating branch pipe (305) is arranged at the lower end of the inner telescopic pipe (303);

the top of the upper sealing head (103) is also provided with a supporting bracket capable of adjusting the height up and down, the side part of the upper end of the inner telescopic pipe (303) is rotatably connected with the supporting bracket, the supporting bracket is used for supporting and supporting the inner telescopic pipe (303), and the inner telescopic pipe (303) can rotate on the supporting bracket.

4. A self-cleaning crystallization tank as claimed in claim 3, wherein the transmission device (304) comprises a support cover mounted on the upper end cap (103) and a pulley fixedly disposed outside the upper end of the outer sleeve (306), the pulley being horizontally rotatably mounted on the support cover, the pulley being connected to the output shaft of the motor through a belt, whereby the outer sleeve (306) is driven to rotate by the motor.

5. A self-cleaning crystallizing tank as claimed in claim 3, wherein the outer side of the inner telescopic tube (303) is provided with a vertical convex key, the inner wall of the outer tube (306) is provided with a matching straight key slot, the convex key on the outer side of the inner telescopic tube (303) is matched and embedded into the straight key slot on the inner wall of the outer tube (306), and the inner telescopic tube (303) and the outer tube (306) are sealed by a sealing ring;

the side part of the upper end of the inner telescopic pipe (303) is provided with a rotating wheel, and the rotating wheel is rotatably connected with the supporting bracket capable of adjusting the height up and down.

6. A self-cleaning crystallizing tank as claimed in claim 1, characterized in that a jacket (2) is arranged on the outer side of the inner cylinder (1), the jacket (2) comprises a jacket cylinder (202) and a jacket end enclosure (201) arranged at the bottom of the jacket cylinder (202), the jacket cylinder (202) is arranged on the outer side of the inner cylinder (102), the jacket end enclosure (201) is arranged on the outer side of the lower end enclosure (101), and the jacket cylinder (202) is provided with a heat transfer medium inlet and a heat transfer medium outlet so as to introduce the heat transfer medium into the jacket (2) and provide heat transfer for the inner cylinder (1).

7. A self-cleaning crystallizing tank as claimed in claim 1, wherein the inner tank (1) is further provided with a spray rinsing device (4) for spray cleaning the crystals in the inner tank (1).

8. A self-cleaning crystallizing tank as claimed in claim 6, wherein a discharge pipe is connected to the bottom of the lower end cover (101), and the outlet end of the discharge pipe extends out of the jacket end cover (201) and is provided with a discharge valve.

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