WO2010116812A1 - 溶解ポンプにおける分離装置 - Google Patents
溶解ポンプにおける分離装置 Download PDFInfo
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- WO2010116812A1 WO2010116812A1 PCT/JP2010/053102 JP2010053102W WO2010116812A1 WO 2010116812 A1 WO2010116812 A1 WO 2010116812A1 JP 2010053102 W JP2010053102 W JP 2010053102W WO 2010116812 A1 WO2010116812 A1 WO 2010116812A1
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- Prior art keywords
- solution
- dissolution
- pump
- dissolution pump
- cylindrical container
- Prior art date
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- 238000000926 separation method Methods 0.000 title claims abstract description 35
- 230000008018 melting Effects 0.000 title abstract 5
- 238000002844 melting Methods 0.000 title abstract 5
- 238000004090 dissolution Methods 0.000 claims description 78
- 238000003756 stirring Methods 0.000 claims description 28
- 239000000843 powder Substances 0.000 description 44
- 230000005484 gravity Effects 0.000 description 20
- 239000007788 liquid Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 16
- 238000002156 mixing Methods 0.000 description 15
- 239000002904 solvent Substances 0.000 description 9
- 238000005243 fluidization Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- NNJPGOLRFBJNIW-HNNXBMFYSA-N (-)-demecolcine Chemical compound C1=C(OC)C(=O)C=C2[C@@H](NC)CCC3=CC(OC)=C(OC)C(OC)=C3C2=C1 NNJPGOLRFBJNIW-HNNXBMFYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C3/00—Apparatus in which the axial direction of the vortex flow following a screw-thread type line remains unchanged ; Devices in which one of the two discharge ducts returns centrally through the vortex chamber, a reverse-flow vortex being prevented by bulkheads in the central discharge duct
- B04C3/06—Construction of inlets or outlets to the vortex chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/53—Mixing liquids with solids using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/59—Mixing systems, i.e. flow charts or diagrams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
- B01F25/53—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle in which the mixture is discharged from and reintroduced into a receptacle through a recirculation tube, into which an additional component is introduced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/60—Pump mixers, i.e. mixing within a pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/81—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow
- B01F27/811—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis the stirrers having central axial inflow and substantially radial outflow with the inflow from one side only, e.g. stirrers placed on the bottom of the receptacle, or used as a bottom discharge pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
- B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
- B04C2009/007—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks with internal rotors, e.g. impeller, ventilator, fan, blower, pump
Definitions
- the present invention relates to a separation apparatus in a dissolution pump, and in particular, the efficiency is high even in the case where a dissolution operation is performed by circulating a solution having a high concentration or a solution which is difficult to dissolve, for example, lumps or lumps are easily generated.
- the present invention relates to a separation apparatus in a dissolution pump that can be operated without lowering the
- the powder suction type dissolution pump performs quantitative adjustment of powder and liquid introduced into the dissolution pump by a stator made of a cylindrical body having a slit and is introduced into the dissolution pump by a stirring blade. The powder and the liquid are mixed and dissolved, and the suspended solution is sent out from the solution discharge port.
- the solution sent out from the solution discharge port is sent out together with the air bubbles in a state not containing undissolved matter by filtering by a separating device comprising a separation filter, and the undissolved matter is circulated along with the partial solution.
- the solution is introduced into the dissolution pump and mixed and dissolved with the newly introduced powder and liquid so that mixing and dissolution of the powder and liquid can be promoted while circulating the solution. .
- the separation device including the separation filter in the above conventional dissolution pump is a solution which is high in concentration and difficult to dissolve, and in the case of a solution which is easily formed, for example, lumps or clumps of aggregates, the separation filter is clogged.
- the operation must be stopped for maintenance, or air bubbles are introduced into the dissolution pump through the circulation channel without being separated, and the suction power of the dissolution pump is reduced, resulting in a reduction in operation efficiency.
- the present invention circulates a solution having a high concentration or a solution which is hard to dissolve, for example, lumps or clumps are easily generated. It is an object of the present invention to provide a separation apparatus in a dissolution pump which can perform continuous operation without lowering the operation efficiency even in the case of
- the separation apparatus in the dissolution pump according to the first aspect of the present invention has the introduction pipe connected to the discharge side of the dissolution pump projecting from the bottom of the cylindrical container to the inside and discharged at the top of the cylindrical container.
- An outlet is provided, and a circulation port communicating with the dissolution pump is provided at a lower portion, and a twist plate for swirling the flow of the solution discharged from the introduction pipe is disposed at the discharge end of the introduction pipe.
- a plurality of torsion plates can be disposed such that the center lines in the longitudinal direction are in a positional relationship of torsion.
- the separation device in the dissolution pump of the second aspect of the present invention the introduction pipe connected to the discharge side of the dissolution pump is disposed protruding inside the bottom of the cylindrical container, And a circulation port communicating with the dissolution pump at the lower part, and an agitation blade for agitating the solution discharged from the introduction pipe is disposed above the discharge end of the introduction pipe.
- the volume of the cylindrical container can be set to 1 to 10 times the discharge amount per minute of the solution discharged from the discharge port.
- the introduction pipe connected to the discharge side of the dissolution pump is disposed to protrude inside from the bottom of the cylindrical container, and the discharge port is provided at the top of the cylindrical container
- Dissolving solution discharged from the introducing pipe is provided with a circulation port communicating with the dissolving pump at the lower part, and a twisting plate for swirling the flow of dissolving solution discharged from the introducing pipe is provided at the discharge end of the introducing pipe
- the solution component having a large specific gravity can be inverted, flowed down, and returned from the lower circulation port to the dissolution pump through the circulation channel.
- the solution component having a large specific gravity including the undissolved material introduced into the dissolution pump through the circulation flow path has a small content of air bubbles, and therefore powder and liquid to be newly introduced into the dissolution pump.
- the introduction pipe connected to the discharge side of the dissolution pump is disposed so as to project inward from the bottom of the cylindrical container, and the discharge port is provided at the top of the cylindrical container.
- a circulation port communicating with the dissolution pump is provided at the lower part, and a stirring blade for stirring the solution discharged from the introduction pipe is disposed at the upper part of the discharge end of the introduction pipe.
- the solution solution is discharged from the upper outlet by discharging the solution solution containing a large amount of bubbles due to the centrifugal action of the stirring blade and the specific gravity difference, and reversing the solution solution solution containing the undissolved material.
- the solution component having a large specific gravity including the undissolved material introduced into the dissolution pump through the circulation flow path has a small content of air bubbles, and therefore powder and liquid to be newly introduced into the dissolution pump.
- the discharge force of the dissolution pump can be assisted, and the viscosity of the solution can be increased by stirring and fluidizing the solution by the stirring blade. It is possible to reduce the flow resistance, to improve the flowability of the solution, and to improve the operation efficiency.
- the solution can be stirred by fluidizing the solution by the stirring blade. It is possible to secure the residence time (about 1 to 10 minutes) of the solution while preventing separation and without lowering the operation efficiency, whereby, for example, starchy substances such as rice flour as powder are obtained.
- the powder is used for dissolution operation by adding a starch degrading enzyme, and uniform dissolution is promoted by stirring and fluidizing the solution while securing time for the starchy powder to be decomposed, It is possible to prevent the solution from being separated or the viscosity of the solution from being increased to inhibit the fluidization.
- FIG. 2 is an overall view of a powder dissolving apparatus including a dissolving pump to which the separating apparatus is applied. It is front sectional drawing which shows one Example of the isolation
- FIG. 2 is an overall view of a powder dissolving apparatus including a dissolving pump to which the separating apparatus is applied.
- FIGS. 1 to 3 show an embodiment of a powder dissolving apparatus including a dissolving pump to which the separating apparatus in the dissolving pump according to the first invention is applied.
- the separation device 1 is disposed on the discharge side of the dissolution pump 6 that mixes the powder supplied from the powder supply device 3 and the solvent (water) supplied from the solvent supply device 4 and the specific gravity of the solution is Perform a vacuum dissolution operation that promotes mixing by circulating a solution containing a large undissolved material (such as lumpy or tufted aggregates, hereinafter referred to as "undissolved material F")
- a solution containing bubbles B and having a low specific gravity and not containing undissolved matter F is sent out from the discharge port 13, and the introduction pipe 12 connected to the discharge side 6 a of the dissolution pump 6 is
- the cylindrical container 11 is provided with a discharge port 13 at the top and a circulation port 14 communicating with the dissolution pump 6 at the bottom, and is provided at the discharge end 12 a of the introduction pipe 12 at the introduction pipe 12.
- the torsion plate 20 disposed at the discharge end 12 a of the introduction pipe 12 is not particularly limited as long as it can turn the flow of the solution discharged from the introduction pipe 12, but the present embodiment is not limited thereto.
- a plurality of (four in the present embodiment) torsion plates 20 are attached at an angle ⁇ with respect to the plane including the central axis C of the introduction pipe 12 and
- the center lines 20a in the longitudinal direction of the frame are arranged in a twisted positional relationship with each other.
- the inclination angle ⁇ of the torsion plate 20 with respect to the plane including the central axis C of the introduction pipe 12 is 40 to 50 °, preferably 45 °, so that the torsion plate 20 abuts on the inner circumferential surface of the introduction pipe 12
- the contact side 20b of the plate 20 with the introduction pipe 12 is formed in an arc shape that follows an oval shape when the introduction pipe 12 is cut at an angle ⁇ .
- the tip of the twisting plate 20 is arranged so as to protrude from the discharge end 12 a of the introducing pipe 12 by a length L. Set up.
- the length L is preferably about 10 to 15% of the inner diameter of the discharge end 12a.
- the dissolution operation of the powder using the separation device 1 of the present embodiment will be described.
- the powder introduced into the powder supply device 3 is sucked by the vacuum suction force of the dissolution pump 6 and flows into the dissolution pump 6 together with the solvent (water) flowing down while swirling the mixing nozzle 5.
- the powder is mixed, sheared and centrifuged in the dissolving pump 6 and dispersed and dissolved in the solvent, and then it becomes a discharge flow from the discharge side 6 a of the dissolving pump 6 through the inlet pipe 12 of the separation device 1. It flows into the upper part.
- the solution in which the air bubbles B and the undissolved material F are mixed is swirled by the torsion plate 20 disposed at the discharge end 12a of the introduction pipe 12, and an inverted cone is formed above the discharge end 12a. It becomes a swirling flow T of a shape.
- the solution component having a small specific gravity which contains a large amount of air bubbles B and does not contain the undissolved material F, discharges the undissolved material F from the outlet 13 at the top.
- the solution component having a small amount of air bubbles B and having a large specific gravity including the unmelted substance F is inverted, flowed down, and returned to the dissolution pump 6 from the lower circulation port 14 via the circulation channel. At this time, the bubbles B contained in the solution discharged from the solution pump 6 are efficiently separated and discharged from the upper outlet 13 together with the solution component having a small specific gravity not containing the undissolved material F.
- the solution returned to the dissolution pump 6 through the circulation port 14 has a small content of air bubbles, so that it is possible to suppress the decrease in intake capacity due to the mixing of air bubbles, and powder and liquid newly introduced to the dissolution pump 6
- Mixing and dissolution can be performed with the powder and liquid to be introduced.
- mixing and dissolution of powder and liquid are promoted while circulating the solution, so it is difficult to dissolve in high concentration or dissolve, for example, in the case of a solution which is likely to produce lumpy or tufted aggregates.
- continuous operation can be performed without lowering the operation efficiency.
- the torsion plate 20 is simple in structure, the pressure loss when the solution passes is small, and the undissolved material F can be passed without clogging, so the frequency of maintenance can be reduced and continuous operation is possible.
- the volume of the cylindrical container 11 is not particularly limited, but, for example, about 0.2 to 1 times the discharge amount per minute of the solution discharged from the discharge port 13 Can be set to As a result, it is possible to prevent the solution from being separated or the viscosity of the solution becoming high and the fluidization being inhibited.
- FIGS. 4 to 5 show an embodiment of a powder dissolving apparatus including a dissolving pump to which the separation device in the dissolving pump according to the second invention is applied.
- this separation device 1 is provided on the discharge side of the dissolution pump 6 that mixes the powder supplied from the powder supply device 3 and the solvent (water) supplied from the solvent supply device 4.
- a vacuum solution operation is provided to promote mixing of the powder and liquid by circulating the solution containing the undissolved material F having a large specific gravity among the solution, and includes the bubble B in the solution.
- the solution which has a low specific gravity and does not contain the undissolved material F is sent out from the discharge port 13, and the introduction pipe 12 connected to the discharge side 6a of the dissolution pump 6 is projected inside from the bottom of the cylindrical container 11 Further, the discharge port 13 is provided in the upper part of the cylindrical container 11 and the circulation port 14 communicating with the dissolution pump 6 is provided in the lower part.
- the separation device 1 is provided with a stirring blade 22 for stirring the solution discharged from the introduction pipe 12 above the discharge end 12 a of the introduction pipe 12.
- the stirring blade 22 is not particularly limited as long as it is configured to stir the solution discharged from the discharge end 12 a of the introduction pipe 12, but in the present embodiment, the stirring blade 22 of the cylindrical container 11 is used. It consists of a plurality (four sheets in the present embodiment) of plate-like members disposed at the tip of the rotary shaft 23 extended inside the cylindrical container 11 from the vicinity of the center of the upper surface.
- the rotary shaft 23 is disposed in the cylindrical container 11 by sealing with, for example, a mechanical seal 25, and the upper end is connected to a driving device such as a motor M so that the stirring blade 22 is rotated in the cylindrical container 11. ing.
- the stirring blade 22 is formed flat so that the surface 22a of the stirring blade 22 is located on the surface including the central axis C of the introduction pipe 12, and attached at a predetermined angle, for example, 30 to 45 ° or curved By forming in this way, the solution discharged from the discharge end 12a can be effectively swirled.
- the discharge port 13 opened at the upper part of the cylindrical container 11 is a cylindrical container 11 as shown in FIG. 4 in order to effectively discharge the solution to which the centrifugal force is applied by the stirring blade 22.
- the upper side of the container preferably, it is opened in the tangential direction of the cylindrical container 11.
- the dissolution operation of the powder using the separation device 1 of the present embodiment will be described.
- the powder introduced into the powder supply device 3 is sucked by the vacuum suction force of the dissolution pump 6 and flows into the dissolution pump 6 together with the solvent (water) flowing down while swirling the mixing nozzle 5.
- the powder is mixed, sheared and centrifuged in the dissolving pump 6 and dispersed and dissolved in the solvent, and then it becomes a discharge flow from the discharge side 6 a of the dissolving pump 6 through the inlet pipe 12 of the separation device 1. It flows into the upper part.
- the solution in which the air bubbles B and the undissolved material F are mixed is subjected to a centrifugal action by the stirring blade 22 disposed on the top of the discharge end 12 a of the introduction pipe 12.
- the solution component having a small specific gravity which contains many air bubbles B and does not contain the undissolved material F, discharges the undissolved material F from the outlet 13 at the top.
- the solution component having a small amount of air bubbles B and having a large specific gravity including the unmelted substance F is inverted, flowed down, and returned to the dissolution pump 6 from the lower circulation port 14 via the circulation channel.
- the bubbles B contained in the solution discharged from the solution pump 6 are efficiently separated and discharged from the upper outlet 13 together with the solution component having a small specific gravity not containing the undissolved material F.
- the solution returned to the dissolution pump 6 through the circulation port 14 has a small content of air bubbles, so that it is possible to suppress the decrease in intake capacity due to the mixing of air bubbles, and powder and liquid newly introduced to the dissolution pump 6
- Mixing and dissolution can be performed with the powder and liquid to be introduced.
- mixing and dissolution of powder and liquid are promoted while circulating the solution, so it is difficult to dissolve in high concentration or dissolve, for example, in the case of a solution which is likely to produce lumpy or tufted aggregates.
- continuous operation can be performed without lowering the operation efficiency.
- the discharge force of the dissolving pump 6 can be assisted, and the solution is stirred by the stirring blade 22 and the solution is dissolved by fluidization.
- the viscosity of the solution can be reduced to reduce the flow resistance, the flowability of the solution can be improved, and the operation efficiency can be improved.
- the volume of the cylindrical container 11 is not particularly limited, but is set to, for example, about 1 to 10 times the discharge amount per minute of the solution discharged from the discharge port 13 (It is also possible to set about 0.2 to 1 times as in the embodiment of the separation apparatus of the first invention).
- the residence time (about 1 to 10 minutes) of the solution can be increased without lowering the operation efficiency. It can be secured.
- the separation apparatus in the dissolution pump of the present invention was explained based on a plurality of examples, the present invention is not limited to the composition indicated in the above-mentioned example, but in the range which does not deviate from the meaning, suitably The configuration can be changed.
- the separation apparatus in the dissolution pump of the present invention has the property of being able to operate continuously without lowering the operation efficiency, it is difficult to dissolve, for example, a high concentration solution, for example, lumps or It can use suitably for the use of the powder dissolving apparatus which circulates the solution which tends to form tufted aggregates, and performs a dissolution operation.
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Abstract
Description
このとき、循環流路を介して、溶解ポンプに導入された未溶解物を含む比重の大きい溶解液成分は、気泡の含有量が少ないため、溶解ポンプに新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。
このとき、循環流路を介して、溶解ポンプに導入された未溶解物を含む比重の大きい溶解液成分は、気泡の含有量が少ないため、溶解ポンプに新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。
また、導入パイプから吐出される溶解液を攪拌羽根により強制排出することによって、溶解ポンプの吐出力を補助することができるとともに、攪拌羽根による溶解液の攪拌、流動化によって、溶解液の粘度を低下させて流動抵抗を低減することができ、溶解液の流動性を改善し、運転効率を向上することができる。
この分離装置1は、粉体供給装置3から供給される粉体と溶媒供給装置4から供給される溶媒(水)とを混合する溶解ポンプ6の吐出側に配設され、溶解液のうち比重の大きい未溶解物(ダマ状や房状の凝集物等をいい、以下、「未溶解物F」という。)を含有した溶解液を循環させて混合を促進する真空溶解運転を行うとともに、溶解液のうち、気泡Bを含み比重が軽く未溶解物Fを含有しない溶解液を排出口13から送り出すようにするもので、溶解ポンプ6の吐出側6aに連なる導入パイプ12を円筒状容器11の底面から内部に突出して配設し、円筒状容器11の上部に排出口13を備えるとともに、下部に溶解ポンプ6に連通する循環口14を備え、導入パイプ12の吐出端12aに、導入パイプ12から吐出される溶解液の流れを旋回させる捻り板20を配設するようにしている。
捻り板20の導入パイプ12の中心軸Cを含む面に対する傾斜角度αは、40~50°、好ましくは45°とし、捻り板20と導入パイプ12の内周面とが当接するように、捻り板20の導入パイプ12との当接辺20bは、導入パイプ12を角度αで切断した際の楕円形状に倣った円弧形状に形成するようにする。
また、導入パイプ12から吐出される溶解液を捻り板20によって効果的に旋回流とするために、捻り板20の先端は、導入パイプ12の吐出端12aから長さLだけ突出するように配設する。この長さLは、吐出端12aの内径の10~15%程度とすることが好ましい。
図3に示すように、粉体供給装置3に投入された粉体は、溶解ポンプ6の真空吸引力で吸引され、ミキシングノズル5を旋回しながら流下する溶媒(水)とともに溶解ポンプ6に流入する。
粉体は、溶解ポンプ6内において、混合、剪断、遠心作用を受け、溶媒に分散、溶解した後、吐出流となって溶解ポンプ6の吐出側6aから導入パイプ12を介して分離装置1の上部に流入する。
一方、気泡Bが少なく、未溶解物Fを含む比重の大きい溶解液成分は、反転、流下し、下部の循環口14から循環流路を介して溶解ポンプ6に戻される。
このとき、溶解ポンプ6から吐出される溶解液に含まれる気泡Bを、効率よく分離して、未溶解物Fを含まない比重の小さい溶解液成分と共に、上部の排出口13から排出するから、循環口14を経て溶解ポンプ6に戻される溶解液は、気泡の含有量が少ないため、気泡混入による吸気能力の低下を抑制することができ、溶解ポンプ6に新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことができる。
これにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。
これにより、溶解液が分離を起こしたり、溶解液の粘度が高くなって流動化が阻害されることを防止することができる。
図5に示すように、粉体供給装置3に投入された粉体は、溶解ポンプ6の真空吸引力で吸引され、ミキシングノズル5を旋回しながら流下する溶媒(水)とともに溶解ポンプ6に流入する。
粉体は、溶解ポンプ6内において、混合、剪断、遠心作用を受け、溶媒に分散、溶解した後、吐出流となって溶解ポンプ6の吐出側6aから導入パイプ12を介して分離装置1の上部に流入する。
一方、気泡Bが少なく、未溶解物Fを含む比重の大きい溶解液成分は、反転、流下し、下部の循環口14から循環流路を介して溶解ポンプ6に戻される。
このとき、溶解ポンプ6から吐出される溶解液に含まれる気泡Bを、効率よく分離して、未溶解物Fを含まない比重の小さい溶解液成分と共に、上部の排出口13から排出するから、循環口14を経て溶解ポンプ6に戻される溶解液は、気泡の含有量が少ないため、気泡混入による吸気能力の低下を抑制することができ、溶解ポンプ6に新たに導入される粉体及び液体の吸引の障害とならず、導入される粉体及び液体と共に混合、溶解を行うことができる。
これにより、溶解液を循環させながら粉体と液体の混合、溶解が促進されるので、濃度の高い溶解液や溶解しにくく、例えば、ダマ状や房状の凝集物が生じやすい溶解液の場合でも、運転効率を低下させることなく連続運転を行うことができる。
また、導入パイプ12から吐出される溶解液を攪拌羽根22により強制排出することによって、溶解ポンプ6の吐出力を補助することができるとともに、攪拌羽根22による溶解液の攪拌、流動化によって、溶解液の粘度を低下させて流動抵抗を低減することができ、溶解液の流動性を改善し、運転効率を向上することができる。
これにより、攪拌羽根22による溶解液の攪拌、流動化によって、溶解液が分離することを防止しながら、また、運転効率を低下させることなく、溶解液の滞留時間(1~10分程度)を確保することができる。
そして、例えば、粉体として米粉等のデンプン質の粉体を使用し、デンプン分解酵素を加えて溶解運転をする場合に、デンプン質の粉体が分解される時間を確保しながら、溶解液の攪拌、流動化によって、均一な分解を促し、溶解液が分離を起こしたり、溶解液の粘度が高くなって流動化が阻害されることを防止することができる。
11 円筒状容器
12 導入パイプ
12a 吐出端
13 排出口
14 循環口
20 捻り板
20a 中心線
22 攪拌羽根
6 溶解ポンプ
6a 溶解ポンプの吐出側
Claims (4)
- 溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口を備え、導入パイプの吐出端に、導入パイプから吐出される溶解液の流れを旋回させる捻り板を配設したことを特徴とする溶解ポンプにおける分離装置。
- 捻り板を、長手方向の中心線が互いにねじれの位置関係となるように複数枚配設したことを特徴とする請求項1記載の溶解ポンプにおける分離装置。
- 溶解ポンプの吐出側に連なる導入パイプを円筒状容器の底面から内部に突出して配設し、円筒状容器の上部に排出口を備えるとともに、下部に前記溶解ポンプに連通する循環口を備え、導入パイプの吐出端の上部に、導入パイプから吐出される溶解液を攪拌する攪拌羽根を配設したことを特徴とする溶解ポンプにおける分離装置。
- 円筒状容器の容積を、排出口から排出される溶解液の1分当たりの排出量の1~10倍に設定したことを特徴とする請求項3記載の溶解ポンプにおける分離装置。
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Publication number | Priority date | Publication date | Assignee | Title |
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JP2011083739A (ja) * | 2009-10-19 | 2011-04-28 | Izumi Food Machinery Co Ltd | 溶解装置 |
CN103785316A (zh) * | 2012-10-26 | 2014-05-14 | 日本斯频德制造株式会社 | 分散系统及其运行方法 |
EP4349490A4 (en) * | 2021-05-24 | 2024-08-28 | Panasonic Intellectual Property Management Co., Ltd. | SEPARATION DEVICE AND SEPARATION SYSTEM |
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CN117643816B (zh) * | 2023-10-19 | 2024-08-13 | 深圳市尚水智能股份有限公司 | 制浆设备 |
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JPS6137214U (ja) * | 1984-08-09 | 1986-03-07 | 三菱重工業株式会社 | 湿分分離器 |
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CN102355954A (zh) | 2012-02-15 |
JP5224382B2 (ja) | 2013-07-03 |
JP2010234185A (ja) | 2010-10-21 |
KR101291779B1 (ko) | 2013-07-31 |
KR20110121723A (ko) | 2011-11-08 |
CN102355954B (zh) | 2013-10-16 |
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