CN218281709U - Production system capable of ensuring physical and chemical properties of glyoxylic acid - Google Patents
Production system capable of ensuring physical and chemical properties of glyoxylic acid Download PDFInfo
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- CN218281709U CN218281709U CN202221919704.5U CN202221919704U CN218281709U CN 218281709 U CN218281709 U CN 218281709U CN 202221919704 U CN202221919704 U CN 202221919704U CN 218281709 U CN218281709 U CN 218281709U
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Abstract
The utility model relates to a can guarantee production system of glyoxylate materialization nature, including synthetic cauldron, the concentrated cauldron of liquid output end fixedly connected with of synthetic cauldron, the liquid output end fixedly connected with purification device of concentrated cauldron, purification device can carry out substep gradient cooling and substep centrifugal treatment to liquid, prevents that oxalic acid crystal particle from attaching to or the crystal particle is too big, guarantees that oxalic acid crystal particle is in suitable size, the liquid output end fixedly connected with dechlorination processing apparatus of purification device, the utility model discloses utilize purification device can carry out substep gradient cooling and substep centrifugal treatment to liquid, prevent that oxalic acid crystal particle from attaching to or the crystal particle is too big, guarantees that oxalic acid crystal particle is in suitable size, realizes getting rid of the continuity of the work of oxalic acid effectively, improves production efficiency, is guaranteeing the purity of glyoxylate and oxalic acid, realizes oxalic acid and glyoxylate separation, and purification glyoxylate guarantees the quality of follow-up production glyoxylate.
Description
Technical Field
The utility model relates to a glyoxylic acid production technical field especially relates to a can guarantee production system of glyoxylic acid materialization nature.
Background
In the production process of glyoxylic acid, a large amount of byproducts are generated, the byproducts are oxalic acid, so the oxalic acid is an impurity in the glyoxylic acid liquid, the existence of the oxalic acid inevitably affects the physical and chemical properties of the glyoxylic acid, and at present, an electrolytic method and a chemical method are generally adopted to remove the oxalic acid in the glyoxylic acid liquid, but in the treatment process, new impurities are introduced into the glyoxylic acid liquid, or the liquid is directly cooled to precipitate the oxalic acid, but in this way, oxalic acid crystal particles are easily not attached or the crystal particles are too large to directly cause damage.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a can guarantee production system of glyoxylate materialization nature for overcome prior art and generally all can adopt electrolysis method, chemical method to remove the oxalic acid in the glyoxylate liquid, but in the course of handling, can introduce new impurity into the glyoxylate liquid, some in addition can change oxalic acid into the oxalate, directly lead to oxalic acid to lose value like this, produce extravagant problem.
For realizing the above-mentioned purpose, the utility model provides a can guarantee production system of glyoxylate materialization nature, including synthetic cauldron, the concentrated cauldron of liquid output end fixedly connected with of synthetic cauldron, the liquid output end fixedly connected with purification device of concentrated cauldron, purification device can carry out substep gradient cooling and substep centrifugal treatment to liquid, prevents that oxalic acid crystal particle from adhering to not go up or the crystal particle is too big, guarantees that oxalic acid crystal particle is in suitable size, the liquid output end fixedly connected with dechlorination processing apparatus of purification device, dechlorination processing apparatus can carry out dechlorination and decoloration to liquid and handle, dechlorination processing apparatus's output fixedly connected with glyoxylate storage jar, the fixed oxalic acid that is equipped with of purification device exports.
Further, purification device includes first gradient cooling centrifugation mechanism and second gradient cooling centrifugation mechanism, the liquid output end and the second gradient cooling centrifugation mechanism fixed connection of first gradient cooling centrifugation mechanism, first gradient cooling centrifugation mechanism can carry out preliminary cooling back to liquid, carries out preliminary centrifugal processing again, second gradient cooling centrifugation mechanism can carry out centrifugal processing again after cooling down once more to liquid.
Further, the liquid is initially cooled to 25-35 ℃, and the liquid is cooled to-10-0 ℃ again.
Further, first gradient cooling centrifugation mechanism and second gradient cooling centrifugation mechanism adopt same cooling centrifugation mechanism, cooling centrifugation mechanism is including cooling cauldron and centrifuge, the output and the centrifuge fixed connection of cooling cauldron, be fixed with the oxalic acid export on the centrifuge.
Furtherly, snakelike fixed embedding has the coolant liquid pipe in the lateral wall of two cooling cauldrons respectively, the shape of coolant liquid pipe outer wall and coolant liquid pipe inner wall all is the ripple type, the input and the output of coolant liquid pipe wear out cooling cauldron and coolant liquid circulating device fixed connection respectively.
Furthermore, different circulating cooling liquids are introduced into cooling liquid guide pipes of the two cooling kettles, wherein cooling water with the temperature of 25-35 ℃ is introduced into the cooling liquid guide pipe of one cooling kettle, and brine ice with the temperature of-10-0 ℃ is introduced into the cooling liquid guide pipe of the other cooling kettle.
Further, dechlorination processing apparatus includes dechlorination jar and decoloration jar, fixedly connected with catalyst input tube on the dechlorination jar, the liquid output end and the decoloration jar fixed connection of dechlorination jar, from the top down is fixed with a plurality of active carbon adsorption blocks in proper order in the decoloration jar.
Furthermore, fixedly connected with circulation pipe on the glyoxylic acid storage jar, and be fixed with the circulating pump on the circulation pipe, the input and the glyoxylic acid storage jar bottom fixed connection of circulation pipe, the output and the glyoxylic acid storage jar top fixed connection of circulation pipe, the fixed inlet tube that is equipped with in glyoxylic acid storage jar top, the fixed valve that is fixed with of inlet tube.
Compared with the prior art, the beneficial effects of the utility model are that: the purification device can be used for carrying out step-by-step gradient cooling and step-by-step centrifugal treatment on the liquid, so that the situation that oxalic acid crystal particles are not attached or the crystal particles are too large is prevented, the oxalic acid crystal particles are ensured to be in proper sizes, the continuity of the work of removing oxalic acid is effectively realized, the production efficiency is improved, the purity of glyoxylic acid and oxalic acid is ensured, the separation of oxalic acid and glyoxylic acid is realized, the glyoxylic acid is purified, and the quality of the subsequent glyoxylic acid production is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the cooling kettle of the present invention;
fig. 3 is a schematic view of the partial cross-sectional structure of fig. 2 according to the present invention;
fig. 4 is a schematic view of the structure of the decoloration tank of the present invention in partial section.
In the figure: the device comprises a synthesis kettle 1, a concentration kettle 2, a purification device 3, a dechlorination treatment device 4, a cooling kettle 5, a centrifuge 6, a cooling liquid guide pipe 7, a cooling liquid circulating device 8, a dechlorination tank 9, a decoloring tank 10, an activated carbon adsorption block 11, a circulating pump 12, a water inlet pipe 13 and a glyoxylic acid storage tank 14.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be further described with reference to the following embodiments; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, unless otherwise explicitly stated or limited in the description of the present invention, the terms "mounted," "connected" and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Please refer to and show in figure 1, the utility model discloses a can guarantee production system of glyoxylic acid materialization nature, including synthetic cauldron 1, the concentrated cauldron 2 of the liquid output end fixedly connected with of synthetic cauldron 1, the liquid output end fixedly connected with purification device 3 of concentrated cauldron 2, purification device 3 can carry out substep gradient cooling and substep centrifugal treatment to liquid, it is too big to prevent that oxalic acid crystal particle from adhering to not go up or crystal particle, it is in suitable size to guarantee oxalic acid crystal particle, the liquid output end fixedly connected with dechlorination processing apparatus 4 of purification device 3, dechlorination processing apparatus 4 can carry out dechlorination and decoloration to liquid and handle, dechlorination processing apparatus 4's output fixedly connected with glyoxylic acid storage jar 14, the fixed oxalic acid export that is equipped with on the purification device 3.
Particularly, because in the direct cooling process, oxalic acid crystal particle is not attached to or crystal particle is too big directly to lead to damaging, purification device 3 can carry out step gradient cooling and step centrifugation to liquid, prevents that crystal particle from attaching to or crystal particle is too big, guarantees that crystal particle is in suitable size, realizes the purification effect to oxalic acid, reduces the impurity in the glyoxylic acid.
Referring to fig. 1, 2, and 3, the purifying device 3 includes a first gradient cooling centrifugal mechanism and a second gradient cooling centrifugal mechanism, a liquid output end of the first gradient cooling centrifugal mechanism is fixedly connected to the second gradient cooling centrifugal mechanism, the first gradient cooling centrifugal mechanism can perform a preliminary centrifugal process after preliminarily cooling the liquid, and the second gradient cooling centrifugal mechanism can perform a centrifugal process after cooling the liquid again. The liquid is primarily cooled to 25-35 ℃, and the liquid is cooled to-10-0 ℃ again. The first gradient cooling centrifugation mechanism and the second gradient cooling centrifugation mechanism adopt the same cooling centrifugation mechanism, the cooling centrifugation mechanism comprises a cooling kettle 5 and a centrifuge 6, the output end of the cooling kettle 5 is fixedly connected with the centrifuge 6, and an oxalic acid outlet is fixed on the centrifuge 6. The cooling liquid guide pipe 7 is respectively embedded into the side walls of the two cooling kettles 5 in a snake-shaped fixed mode, the outer wall of the cooling liquid guide pipe 7 and the inner wall of the cooling liquid guide pipe 7 are both corrugated, and the input end and the output end of the cooling liquid guide pipe 7 penetrate out of the cooling kettles 5 and are fixedly connected with the cooling liquid circulating device 8 respectively. Different circulating cooling liquids are introduced into the cooling liquid guide pipes 7 of the two cooling kettles 5, wherein the cooling water with the temperature of 25-35 ℃ is introduced into the cooling liquid guide pipe 7 of one cooling kettle 5, and the brine ice with the temperature of-10-0 ℃ is introduced into the cooling liquid guide pipe 7 of the other cooling kettle 5.
Specifically, different cooling liquids are utilized, cooling water with the temperature of 25-35 ℃ is introduced into the cooling kettle 5 of the first gradient cooling centrifugal mechanism, brine ice with the temperature of-10-0 ℃ is introduced into the cooling kettle 5 of the second gradient cooling centrifugal mechanism, the distributed cooling effect is realized, and meanwhile, the shapes of the outer wall of the cooling liquid conduit 7 and the inner wall of the cooling liquid conduit 7 are both corrugated, so that the contact area between the conduit wall and liquid in the cooling kettle 5 can be increased, the heat exchange area of the cooling liquid conduit 7 is increased, the heat transfer performance of the cooling liquid conduit 7 is enhanced, and the cooling capacity is improved;
and after cooling, forming oxalic acid crystals in the liquid, then carrying out solid-liquid separation on the glyoxylic acid mixed liquid mixed with the oxalic acid crystals through a centrifugal machine 6, and conveying oxalic acid particles at an oxalic acid outlet to the next working procedure.
Referring to fig. 1 and 4, the dechlorination apparatus 4 includes a dechlorination tank 9 and a decoloring tank 10, the dechlorination tank 9 is fixedly connected with a catalyst input pipe, a liquid output end of the dechlorination tank 9 is fixedly connected with the decoloring tank 10, and a plurality of activated carbon adsorption blocks 11 are sequentially fixed in the decoloring tank 10 from top to bottom.
Specifically, a catalyst (sodium sulfite) is added into a dechlorination tank 9 to produce precipitates, the reaction is carried out at the same time of heating, the glyoxylic acid mixed solution promotes the separation of chloride ions, and finally the chloride ions are conveyed into a decoloring tank 10 to realize multiple decoloring treatments by using a plurality of activated carbon adsorption blocks 11.
Referring to fig. 1, a circulation conduit is fixedly connected to the glyoxylic acid storage tank 14, a circulation pump 12 is fixed to the circulation conduit, an input end of the circulation conduit is fixedly connected to the bottom of the glyoxylic acid storage tank 14, an output end of the circulation conduit is fixedly connected to the top of the glyoxylic acid storage tank 14, a water inlet pipe 13 is fixedly arranged at the top of the glyoxylic acid storage tank 14, and a valve is fixedly arranged on the water inlet pipe 13.
Specifically, the circulating pump 12 is started, the water inlet pipe 13 is connected with an external water injection device, so that a valve on the water inlet pipe 13 is opened, a certain amount of water is used for adjusting the concentration of the glyoxylic acid, and the required glyoxylic acid finished product is obtained.
When the device is used, a raw material liquid inlet on the synthesis kettle 1 directly conveys raw materials into the synthesis kettle 1, the synthesis kettle 1 carries out synthesis, then the raw materials enter the concentration kettle 2 for distillation and concentration, the concentrated reaction liquid is conveyed into the purification device 3, and the purification device 3 can carry out step-by-step gradient cooling and step-by-step centrifugal treatment on the liquid;
the purification device 3 is used for the treatment process, namely the reaction liquid is sequentially conveyed to the cooling kettle 5 and the centrifugal machine 6 of the first gradient cooling centrifugal mechanism, the reaction liquid can be initially cooled to 30 ℃ after being primarily cooled, certain stationary liquid separation is realized through primary centrifugation, then the reaction liquid is sequentially conveyed to the cooling kettle 5 and the centrifugal machine 6 of the second gradient cooling centrifugal mechanism, the reaction liquid is cooled to-5 ℃ again, oxalic acid is completely crystallized, and centrifugal solid-liquid separation is performed again to realize the purification of the glyoxylic acid;
after purification is finished, the mixture is conveyed to a dechlorinating tank 9 and a decoloring tank 10, a catalyst (sodium sulfite) is added into the dechlorinating tank 9 to produce precipitates, meanwhile, the reaction is carried out by heating, the glyoxylic acid mixed solution promotes separation of chloride ions, and finally, the mixture is conveyed to the decoloring tank 10 to realize multiple decoloring treatment by utilizing a plurality of activated carbon adsorption blocks 11;
and finally, the glyoxylic acid is conveyed to a glyoxylic acid storage tank 14 for storage and is used in the subsequent process.
So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions can be made on the related technical features by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions will fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a can guarantee production system of glyoxylate materialization nature, a serial communication port, including synthesizing the cauldron, the liquid output end fixedly connected with concentration cauldron of synthesis cauldron, the liquid output end fixedly connected with purification device of concentration cauldron, the purification device can carry out substep gradient cooling and substep centrifugal treatment to liquid, prevents that oxalic acid crystal particle from adhering to not go up or the crystal particle is too big, guarantees that oxalic acid crystal particle is in suitable size, the liquid output end fixedly connected with dechlorination processing apparatus of purification device, dechlorination processing apparatus can carry out dechlorination and decoloration to liquid, dechlorination processing apparatus's output fixedly connected with glyoxylate storage jar, the fixed oxalic acid export that is equipped with on the purification device.
2. The production system capable of ensuring the physicochemical properties of glyoxylic acid according to claim 1, wherein the purification device comprises a first gradient cooling centrifugation mechanism and a second gradient cooling centrifugation mechanism, the liquid output end of the first gradient cooling centrifugation mechanism is fixedly connected with the second gradient cooling centrifugation mechanism, the first gradient cooling centrifugation mechanism can primarily cool the liquid and then primarily centrifuge the liquid, and the second gradient cooling centrifugation mechanism can cool the liquid again and then centrifuge the liquid.
3. The production system capable of ensuring the physicochemical property of the glyoxylic acid as claimed in claim 2, wherein the temperature of the liquid is initially reduced to 25 ℃ to 35 ℃ and the temperature of the liquid is reduced to-10 ℃ to 0 ℃ again.
4. The production system capable of ensuring the physicochemical properties of glyoxylic acid according to claim 3, wherein the first gradient cooling centrifugation mechanism and the second gradient cooling centrifugation mechanism are the same cooling centrifugation mechanism, the cooling centrifugation mechanism comprises a cooling kettle and a centrifuge, the output end of the cooling kettle is fixedly connected with the centrifuge, and an oxalic acid outlet is fixed on the centrifuge.
5. The production system capable of ensuring the physicochemical property of the glyoxylic acid according to claim 4, wherein cooling liquid guide pipes are respectively and fixedly embedded in the side walls of the two cooling kettles in a snake shape, the outer walls and the inner walls of the cooling liquid guide pipes are both in a corrugated shape, and the input end and the output end of each cooling liquid guide pipe respectively penetrate through the cooling kettles and are fixedly connected with the cooling liquid circulating device.
6. The production system capable of ensuring the physicochemical property of the glyoxylic acid as claimed in claim 5, wherein different circulating cooling liquids are introduced into the cooling liquid guide pipes of the two cooling kettles, wherein the cooling liquid guide pipe of one cooling kettle is introduced with cooling water of 25-35 ℃, and the cooling liquid guide pipe of the other cooling kettle is introduced with brine ice of-10-0 ℃.
7. The production system capable of ensuring the physicochemical property of the glyoxylic acid according to claim 4 or 5, wherein the dechlorination device comprises a dechlorination tank and a decolorization tank, a catalyst input pipe is fixedly connected to the dechlorination tank, the liquid output end of the dechlorination tank is fixedly connected to the decolorization tank, and a plurality of activated carbon adsorption blocks are sequentially fixed in the decolorization tank from top to bottom.
8. The production system capable of ensuring the physicochemical property of the glyoxylic acid according to claim 4 or 5, wherein a circulation conduit is fixedly connected to the glyoxylic acid storage tank and is fixed with a circulation pump, the input end of the circulation conduit is fixedly connected with the bottom of the glyoxylic acid storage tank, the output end of the circulation conduit is fixedly connected with the top of the glyoxylic acid storage tank, the top of the glyoxylic acid storage tank is fixedly provided with a water inlet pipe, and a valve is fixedly fixed on the water inlet pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221919704.5U CN218281709U (en) | 2022-07-21 | 2022-07-21 | Production system capable of ensuring physical and chemical properties of glyoxylic acid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221919704.5U CN218281709U (en) | 2022-07-21 | 2022-07-21 | Production system capable of ensuring physical and chemical properties of glyoxylic acid |
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| CN218281709U true CN218281709U (en) | 2023-01-13 |
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| CN202221919704.5U Active CN218281709U (en) | 2022-07-21 | 2022-07-21 | Production system capable of ensuring physical and chemical properties of glyoxylic acid |
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