CN217887950U - Calcium propionate continuous production device - Google Patents

Calcium propionate continuous production device Download PDF

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Publication number
CN217887950U
CN217887950U CN202221938164.5U CN202221938164U CN217887950U CN 217887950 U CN217887950 U CN 217887950U CN 202221938164 U CN202221938164 U CN 202221938164U CN 217887950 U CN217887950 U CN 217887950U
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China
Prior art keywords
mother liquor
communicated
calcium propionate
outlet
continuous production
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CN202221938164.5U
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Chinese (zh)
Inventor
李怀增
魏义博
孙栋
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Liaocheng Luxi Formic Acid Chemical Co ltd
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Liaocheng Luxi Formic Acid Chemical Co ltd
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Abstract

The technical problem to be solved by the utility model is to provide a calcium propionate continuous production device, which can realize large-scale continuous production, improve the yield of calcium propionate, lighten the labor intensity and reduce the production cost, and comprises a raw material bin, a reaction kettle, a crystallization kettle and a centrifuge which are sequentially connected; the reaction kettle is also provided with a propionic acid inlet; a mother liquor outlet of the centrifuge is sequentially communicated with a mother liquor settling tank and a mother liquor tank; a wet material outlet of the centrifuge is communicated with a spin flash dryer, a top gas outlet of the spin flash dryer is communicated with a cyclone separator, a top outlet of the cyclone separator is communicated with a bag-type dust collector, and a bottom outlet of the cyclone separator is communicated with a finished product bin.

Description

Calcium propionate continuous production device
Technical Field
The utility model relates to a calcium propionate continuous production device belongs to calcium propionate production technical field.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
The main method for producing calcium propionate is to react formic acid solution with calcium oxide or calcium carbonate to produce calcium propionate product solution. Cooling, crystallizing, centrifugally separating and drying to obtain the calcium propionate product. Traditional calcium propionate apparatus for producing is intermittent type formula reaction, and formic acid solution and calcium carbonate slowly add the reactor according to reaction ratio, fully react through the stirring, cool crystallization, after the centrifugation material is carried to bipyramid gyration vacuum drying ware intermittent type ejection of compact and is dried, and this process needs a large amount of labours, and work efficiency is low, and the mother liquor quality of just retrieving is poor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a calcium propionate continuous production device can realize extensive serialization production, has improved calcium propionate output, has alleviateed intensity of labour, has reduced manufacturing cost.
The utility model discloses a realize through following technical scheme:
a calcium propionate continuous production device comprises a raw material bin, a reaction kettle, a crystallization kettle and a centrifuge which are sequentially communicated; the reaction kettle is also provided with a propionic acid inlet; a mother liquor outlet of the centrifuge is sequentially communicated with a mother liquor settling tank and a mother liquor tank; a wet material outlet of the centrifuge is communicated with a spin flash dryer, a top gas outlet of the spin flash dryer is communicated with a cyclone separator, a top outlet of the cyclone separator is communicated with a bag-type dust collector, and a bottom outlet of the cyclone separator is communicated with a finished product bin.
Further, the feed inlet of former feed bin is equipped with vacuum material loading machine, the discharge gate of former feed bin passes through screw conveyer intercommunication reation kettle's feed inlet.
Furthermore, the raw material bin is a weighing bin, and the outer wall of the reaction kettle is provided with a jacket.
Further, a liquid filter for filtering the mother liquor is arranged between the mother liquor tank and the mother liquor settling tank.
Further, the mother liquor settling tank is a three-stage settling tank.
Compared with the prior art, the utility model the beneficial effect who gains as follows:
1. calcium carbonate powder is arranged in the raw material bin, formic acid solution and calcium carbonate powder are added into a reaction kettle according to the reaction ratio for reaction, then the obtained product enters a crystallization kettle for cooling crystallization, and then the obtained product enters a centrifuge for separation, mother liquor of the centrifuge enters a mother liquor settling tank for precipitation, and the mother liquor is collected and enters a mother liquor tank; wet materials of the centrifuge enter a spin flash dryer for drying and then are separated by a cyclone separator to obtain a finished product;
the continuous production of calcium propionate is realized in the process, and the mother liquor is provided with a special precipitation device, so that the quality of the circulating mother liquor is improved, the quality of a calcium propionate product is improved, the labor intensity is reduced, and the production cost is reduced;
2. the vacuum feeding machine is connected with the feeding hole of the raw material bin, so that dust is prevented from flying when powder materials are transported to the raw material bin, and environmental pollution is reduced;
3. a liquid filter for filtering the mother liquid is arranged between the mother liquid tank and the mother liquid settling tank, so that the quality of the circulating mother liquid is improved.
Drawings
FIG. 1 is a schematic structural view of a calcium propionate continuous production device of the present invention;
in the figure: 1. vacuum material loading machine, 2, raw materials storehouse, 3, reation kettle, 4, reation kettle bottom pump, 5, crystallization kettle, 6, centrifuge, 7, spin flash dryer, 8, cyclone, 9, sack cleaner, 10, finished product storehouse, 11, mother liquor groove, 12, mother liquor settling tank, 13, liquid filter equipment.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
The present invention is further described below with reference to the drawings and examples to facilitate understanding for those skilled in the art.
As shown in fig. 1, the embodiment discloses a continuous production device for calcium propionate, which mainly comprises a vacuum feeder 1, a raw material bin 2, a reaction kettle 3, a reaction kettle bottom pump 4, a crystallization kettle 5, a centrifuge 6, a mother liquor settling tank 12, a liquid filter 13, a mother liquor tank 11, a spin flash dryer 7, a cyclone separator 8 and a bag-type dust collector 9. The discharge gate of vacuum material loading machine 1 links to each other with the feed inlet of former feed bin 2, the feed inlet that 2 discharge gates in former feed bin pass through screw conveyer and reation kettle 3 links to each other, reation kettle 3's bottom links to each other with the import of reation kettle bottom pump 4, the export of reation kettle bottom pump 4 links to each other with crystallization kettle 5's feed inlet, crystallization kettle 5's feed inlet links to each other with centrifuge 6's import, centrifuge 6's wet material export links to each other with 7 imports of spin flash dryer, the top gas outlet and the 8 intercommunications of cyclone of spin flash dryer 7, cyclone 8's top export intercommunication sack cleaner 9, cyclone 8's bottom export intercommunication has finished product storehouse 10. The mother liquor outlet of the centrifuge 6 is connected with a mother liquor settling tank 12, the mother liquor settling tank 12 is connected with a liquid filter 13, and the liquid filter 13 is connected with a mother liquor tank 11. In this embodiment, the raw material bin 2 is a weighing bin, the outer wall of the reaction kettle 3 is provided with a jacket, and the mother liquor settling tank 12 is a three-stage settling tank.
The specific working process of the calcium propionate continuous production device in the embodiment is as follows:
1. calcium carbonate powder is conveyed into a raw material bin 2 through a vacuum feeding machine 1, materials in the raw material bin 2 enter a reaction kettle 3, meanwhile, the reaction kettle 3 is also provided with a propionic acid inlet, propionic acid is added into the reaction kettle 3 through the propionic acid inlet according to a corresponding reaction proportion, and calcium propionate turbid liquid with the solid-liquid ratio of about 50% is generated in the reaction kettle 3 through reaction;
2. the calcium propionate suspension enters the crystallization kettle 5 under the action of the reaction kettle bottom pump 4 to form calcium propionate crystal particles;
3. the calcium propionate crystal particles enter a centrifuge 6 for a centrifugation process;
4. a wet material outlet of the centrifuge 6 generates a calcium propionate wet material with water content of about 5% and sends the calcium propionate wet material into the spin flash dryer 7 for drying, a qualified dried calcium propionate product in the spin flash dryer 7 enters the cyclone separator 8 along with dry air from a top gas outlet, the calcium propionate product meeting the particle size requirement enters a finished product bin through a bottom outlet of the cyclone separator 8, and the calcium propionate with micro particle size enters the bag-type dust collector 9 through the top of the cyclone separator 8 for collection;
5. a turbid liquid containing about 5% of calcium propionate crystals generated at a mother liquid outlet of the centrifuge 6 enters a mother liquid settling tank 12, particles containing the calcium propionate crystals are settled in the mother liquid settling tank 12, the mother liquid enters a liquid filtering device to filter insoluble substances and impurities in the mother liquid, finally the mother liquid enters a mother liquid tank 11, and the outlet of the mother liquid tank 11 is connected with an external vacuum evaporation system.
The process realizes continuous production of calcium propionate, and the mother liquor is provided with a special precipitation device, so that the quality of circulating mother liquor is improved, the quality of calcium propionate products is improved, the labor intensity is reduced, and the production cost is reduced.

Claims (5)

1. A calcium propionate continuous production device is characterized by comprising a raw material bin, a reaction kettle, a crystallization kettle and a centrifuge which are communicated in sequence;
the reaction kettle is also provided with a propionic acid inlet;
a mother liquor outlet of the centrifuge is sequentially communicated with a mother liquor settling tank and a mother liquor tank;
a wet material outlet of the centrifugal machine is communicated with a spin flash dryer, a top gas outlet of the spin flash dryer is communicated with a cyclone separator, a top outlet of the cyclone separator is communicated with a bag-type dust collector, and a bottom outlet of the cyclone separator is communicated with a finished product bin.
2. The continuous production device of calcium propionate according to claim 1, wherein the feed inlet of the raw material bin is provided with a vacuum feeder, and the discharge outlet of the raw material bin is communicated with the feed inlet of the reaction kettle through a screw conveyor.
3. The continuous production device of calcium propionate according to claim 1, wherein the raw material bin is a weighing bin, and the outer wall of the reaction kettle is provided with a jacket.
4. The continuous production device of calcium propionate according to claim 1, wherein a liquid filter for filtering the mother liquor is arranged between the mother liquor tank and the mother liquor settling tank.
5. The continuous production plant of calcium propionate according to any one of claims 1 to 4, wherein said mother liquor settling tank is a tertiary settling tank.
CN202221938164.5U 2022-07-26 2022-07-26 Calcium propionate continuous production device Active CN217887950U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221938164.5U CN217887950U (en) 2022-07-26 2022-07-26 Calcium propionate continuous production device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221938164.5U CN217887950U (en) 2022-07-26 2022-07-26 Calcium propionate continuous production device

Publications (1)

Publication Number Publication Date
CN217887950U true CN217887950U (en) 2022-11-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221938164.5U Active CN217887950U (en) 2022-07-26 2022-07-26 Calcium propionate continuous production device

Country Status (1)

Country Link
CN (1) CN217887950U (en)

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