CN216630863U

CN216630863U - Acidification reaction device

Info

Publication number: CN216630863U
Application number: CN202123122941.7U
Authority: CN
Inventors: 陈玉成; 何关印
Original assignee: Hunan Chengyouhua Technology Co ltd
Current assignee: Hunan Chengyouhua Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-05-31
Anticipated expiration: 2031-12-13

Abstract

The utility model relates to an acidification reaction device, which comprises a spraying unit and a mixing unit, wherein the spraying unit comprises an outer pipe body and a spraying pipe extending into the outer pipe body, the mixing unit comprises a reaction tank, a guide area, a stirring area and a static mixing area are sequentially arranged in the reaction tank along the flow direction of fluid, a guide plate is arranged in the guide area, the guide plate comprises a plate body and guide holes, and the guide holes are obliquely arranged; a stirring impeller is arranged in the stirring and mixing area; the fluid sprayed by the spraying unit is guided by the guide plate to enter the stirring area, is stirred by the high-speed rotation of the stirring impeller, and then the fluid mixed solution is pushed into the static mixing area to be kept stand and mixed; the first-stage mixing of two fluids is realized through the jet unit, then the two fluids are subjected to collision mixing through the guide area entering the reaction tank, the two fluids are uniformly stirred in the stirring area, the second-stage dynamic mixing is realized, and finally the two fluids enter the static mixing area to realize the third-stage static mixing; the reaction efficiency of the two fluids is effectively improved.

Description

Acidification reaction device

Technical Field

The utility model belongs to the technical field of soapstock acidification, and particularly relates to an acidification reaction device.

Background

The raw rice bran oil contains rich oryzanol which is an important raw material for producing the oryzanol, so when the oryzanol is produced by a factory, alkali is added into the raw rice bran oil, so that free fatty acid in the raw rice bran oil is neutralized, soapstock is generated, then the soapstock is acidified to obtain an acidification liquid containing fatty acid and waste water containing sodium sulfate, and the oryzanol is remained in the fatty acid.

The existing acidification reaction device is mainly used for continuously pumping nigre and sulfuric acid into the device at a constant speed simultaneously during acidification reaction processing, then the nigre and the sulfuric acid are fully mixed and have acidification reaction through the quick rotation of the stirring rod arranged in the device, however, the device which is used for carrying out the mixing reaction simply in a stirring mode is difficult to ensure that the mixing reaction is fully and thoroughly carried out, part of nigre and sulfuric acid are easy to be generated in the acidification reaction without participation, so that the production rate of acidification liquid is reduced, and the serious waste of raw materials is caused.

The other mode is that soapstock is injected into the device at a high speed through an injection pipe, then sulfuric acid is quickly sucked into the device under negative pressure generated at the high-speed soapstock injection position in the device, so that the soapstock and the sulfuric acid quickly flow and collide and mix together for reaction, and the flowing and mixing mode still has difficulty in ensuring that the sulfuric acid and the soapstock can completely participate in the reaction, the production rate of an acidizing fluid is reduced, and the serious waste of raw materials is caused.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide an acidification reaction device, which realizes the preliminary mixing reaction of soapstock and sulfuric acid through a jet unit, further enhances the mixing degree between the soapstock and the sulfuric acid through a mixing unit, ensures that the soapstock and the sulfuric acid can fully and thoroughly participate in the reaction, increases the acidification rate and avoids the waste of raw materials.

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

an acidification reaction device comprises a spraying unit for spraying fluid raw materials into the reaction device and a mixing unit for enhancing the fluid mixing effect, wherein the spraying unit comprises an outer pipe body and a spraying pipe extending into the outer pipe body, the mixing unit comprises a reaction tank, a guide area, a stirring area and a static mixing area are sequentially arranged in the reaction tank along the fluid flowing direction, a fixed guide plate is arranged in the guide area, the guide plate comprises a plate body and guide holes which are uniformly distributed in the plate body and penetrate through the plate body, and the guide holes are obliquely arranged; a stirring impeller is arranged in the stirring and mixing area; the fluid sprayed by the spraying unit enters the stirring area through the diversion of the guide plate, is stirred by the high-speed rotation of the stirring impeller, and then the fluid mixed liquid is pushed into the static mixing area to be kept stand and mixed.

Preferably, the outer tube body comprises a feeding tube, a neck shrinkage tube and a buffering guide tube which are sequentially arranged along the fluid flow direction, the feeding tube is configured to introduce a first fluid, one end, far away from the neck shrinkage tube, of the buffering guide tube is communicated with the feeding end of the reaction tank, the discharging end of the injection tube extends into the neck shrinkage tube, the injection tube is configured to inject a second fluid, and the axis of the injection tube is coincident with the axis of the neck shrinkage tube; in the fluid flow direction, the pipe diameter of the end of the feeding pipe connected with the necking pipe is gradually reduced, and the pipe diameter of the end of the buffering guide pipe connected with the necking pipe is gradually increased.

The second fluid is ejected from the ejection pipe at a high speed, negative pressure is formed at the connection part of the feeding pipe and the necking pipe due to the cone shape, and after the first fluid enters the feeding pipe, the first fluid is pumped and ejected together by the second fluid ejected from the ejection pipe in a negative pressure area, so that primary mixing is realized.

Preferably, the first fluid is sulfuric acid, the second fluid is soapstock, a sulfuric acid feeding pipe is connected to the outer wall of the feeding pipe, and the sulfuric acid feeding pipe is located at a position close to a penetrating port of a jet pipe on the feeding pipe. The sulfuric acid feed pipe is located near the injection pipe penetration on the feed pipe to facilitate sufficient feeding so that there is an adequate supply of sulfuric acid.

Preferably, the necking pipe is a straight pipe, and the diameter of the injection pipe is between one fifth and one third of the diameter of the necking pipe. To ensure sufficient spray pressure while ensuring sufficient clearance for fluid to pass through.

Preferably, the inner bottom wall of the buffer guide pipe is flush with the bottom of the liquid inlet end of the lowest diversion hole. The buffer guide tube has a fill therein so that the bottom can be horizontally introduced with fluid.

Preferably, the included angle between the diversion hole and the axis of the injection pipe is between twenty degrees and forty-five degrees. This allows the fluid to impact the impeller, causing it to rotate.

Preferably, the distance between two adjacent diversion holes is smaller than the diameter of the diversion hole. Therefore, the diversion holes can be densely arranged, and the fluid is convenient to be guided in.

Preferably, a corrugated metal packing is provided in the static mixing zone.

Preferably, the end of the static mixing zone of the reaction tank is connected with a discharge pipe for discharging the fluid mixture.

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

according to the acidification reaction device, the first-stage mixing of two fluids is realized through the injection unit, then the two fluids are subjected to high-speed collision mixing through the guide area in the reaction tank in the mixing unit, the two fluids are uniformly stirred in the stirring area to realize second-stage dynamic mixing, and finally the two fluids enter the static mixing area to realize third-stage static mixing; the efficiency of the reaction of the two fluids is effectively improved, the two fluids can realize complete reaction, and the waste caused by incomplete reaction is avoided.

Drawings

FIG. 1 is a schematic perspective view of an acidification reaction apparatus in the example;

FIG. 2 is a schematic partial cross-sectional view of a reaction tank in the acidification reaction unit;

FIG. 3 is a schematic perspective view of the acidification reaction device in the embodiment from another angle, which shows the internal structure of the reaction tank;

FIG. 4 is an overall sectional view of the acidification reaction device in the example.

Detailed Description

The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.

An acidification reactor as shown in fig. 1-4, comprising an injection unit 1 for injecting a fluid feedstock into the interior of the reactor and a mixing unit 2 for enhancing the mixing effect of the fluids, said injection unit 1 comprising an outer body 11 and an injection pipe 12 extending into the interior of the outer body 11; specifically, the outer tube 11 includes a feeding tube 111, a necking tube 112, and a buffering guide tube 113 sequentially arranged along a fluid flow direction, the feeding tube 111 is configured to introduce a first fluid, that is, sulfuric acid, one end of the buffering guide tube 113 away from the necking tube 112 is communicated with a feeding end of the reaction tank 201, a discharging end of the injection tube 12 extends into the necking tube 112, the injection tube 12 is configured to inject a second fluid, that is, soapstock solution, and an axis of the injection tube 12 coincides with an axis of the necking tube 112; in the fluid flow direction, the pipe diameter of the end of the feed pipe 111 connected to the necking pipe 112 is gradually decreased, and the pipe diameter of the end of the buffer guide pipe 113 connected to the necking pipe 112 is gradually increased.

Still further, a sulfuric acid feed pipe 114 is connected to the outer wall of the feed pipe 111, and the sulfuric acid feed pipe 114 is located near the penetration of the injection pipe 12 on the feed pipe 111. This allows more sulfuric acid to enter feed pipe 111 to provide an adequate supply; the necking pipe 112 is a straight pipe, and the pipe diameter of the injection pipe 12 is between one fifth and one third of the pipe diameter of the necking pipe 112; this ensures a sufficient pressure while allowing a sufficient passage of the first fluid through the gap.

The mixing unit 2 comprises a reaction tank 201, a guide area, a stirring area and a static mixing area are sequentially arranged in the reaction tank 201 along the fluid flowing direction, a guide plate 202 with a fixed position is arranged in the guide area, and the guide plate 202 comprises a circular plate body 2021 and guide holes 2022 which are uniformly distributed in the plate body 2021 and penetrate through the guide plate 202; a stirring impeller 203 is arranged in the stirring and mixing area, and the central shaft of the stirring impeller 203 is superposed with the axis of the plate body 2021; the diversion holes 2022 are obliquely arranged for impacting the stirring impeller 203 to rotate; the included angle between the guide hole 2022 and the axis of the injection pipe 12 is thirty degrees; the distance between two adjacent guide holes 2022 is smaller than the diameter of the guide holes 2022, so that the guide holes are more densely distributed, and the fluid mixed liquid can conveniently pass through.

The end of the static mixing zone of the reaction tank 201 is connected with a discharge pipe 3 for discharging the fluid reaction liquid.

During specific work, the fluid soapstock sprayed by the spraying unit and sulfuric acid drained by negative pressure firstly perform primary mixing, then enter the stirring area through the diversion of the diversion plate, are stirred through high-speed rotation of the stirring impeller 203 to realize secondary dynamic mixing, and then push the fluid mixed liquid to the static mixing area for tertiary standing mixing. In this way, the soapstock and the sulfuric acid can react to generate fatty acid, sodium sulfate and water, and the sodium sulfate is dissolved in the water to form sodium sulfate mixed liquor, so that the full reaction is realized.

In order to further improve the mixing reaction effect, the buffer guide pipe 113 is partially filled, that is, when the buffer guide pipe 113 is laid down, the inner bottom wall of the buffer guide pipe is flush with the bottom of the liquid inlet end of the lowest guide hole 2022, so that the fluid power is prevented from being lost; furthermore, a metal corrugated filler 204 is arranged in the static mixing area, so that the mixed liquid of the fatty acid and the sodium sulfate can realize primary separation in the standing process, and further oil-water separation operation is facilitated.

The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. An acidification reaction device, which is characterized in that: the device comprises an injection unit for injecting fluid raw materials into a reaction device and a mixing unit for enhancing the fluid mixing effect, wherein the injection unit comprises an outer pipe body and an injection pipe extending into the outer pipe body, the mixing unit comprises a reaction tank, a guide area, a stirring area and a static mixing area are sequentially arranged in the reaction tank along the fluid flowing direction, a fixed guide plate is arranged in the guide area, the guide plate comprises a plate body and guide holes which are uniformly distributed in the plate body and penetrate through the plate body, and the guide holes are obliquely arranged; a stirring impeller is arranged in the stirring and mixing area; and the fluid sprayed by the spraying unit is guided by the guide plate to enter the stirring area, the stirring impeller is impacted to rotate for stirring, and the stirred fluid mixed solution is pushed into the static mixing area for standing and mixing.

2. An acidification reaction device according to claim 1, wherein: the outer tube body comprises a feeding tube, a neck shrinkage tube and a buffering guide tube which are sequentially arranged along the fluid flowing direction, the feeding tube is configured to introduce a first fluid, one end, far away from the neck shrinkage tube, of the buffering guide tube is communicated with the feeding end of the reaction tank, the discharging end of the injection tube extends into the neck shrinkage tube, the injection tube is configured to inject a second fluid, and the axis of the injection tube is coincident with the axis of the neck shrinkage tube; in the fluid flow direction, the pipe diameter of the end of the feeding pipe connected with the necking pipe is gradually reduced, and the pipe diameter of the end of the buffering guide pipe connected with the necking pipe is gradually increased.

3. An acidification reaction device according to claim 2, wherein: the first fluid is sulfuric acid, the second fluid is soapstock, the outer wall of the feeding pipe is connected with a sulfuric acid feeding pipe, and the sulfuric acid feeding pipe is located at a position close to a penetrating port of a jet pipe on the feeding pipe.

4. An acidification reactor device according to claim 2, wherein: the necking pipe is a straight pipe, and the diameter of the injection pipe is between one fifth and one third of the diameter of the necking pipe.

5. An acidification reaction device according to claim 2, wherein: the inner bottom wall of the buffer guide pipe is flush with the bottom of the liquid inlet end of the lowermost diversion hole.

6. An acidification reactor device according to claim 1, wherein: the included angle between the flow guide hole and the axis of the injection pipe is between twenty degrees and forty-five degrees.

7. An acidification reaction device according to claim 1, wherein: the distance between two adjacent guide holes is smaller than the diameter of each guide hole.

8. An acidification reaction device according to claim 1, wherein: a metal corrugated packing is arranged in the static mixing zone.

9. An acidification reaction device according to claim 1, wherein: the tail end of the static mixing area of the reaction tank is communicated with a discharge pipe used for discharging the fluid reaction liquid.