CN108786198B - Subside variable sugar manufacturing of area and use settler - Google Patents
Subside variable sugar manufacturing of area and use settler Download PDFInfo
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- CN108786198B CN108786198B CN201710291288.6A CN201710291288A CN108786198B CN 108786198 B CN108786198 B CN 108786198B CN 201710291288 A CN201710291288 A CN 201710291288A CN 108786198 B CN108786198 B CN 108786198B
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- settler
- juice
- sugar
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- variable
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims abstract description 121
- 238000004062 sedimentation Methods 0.000 claims abstract description 23
- 239000010410 layer Substances 0.000 claims description 22
- 239000011229 interlayer Substances 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims 6
- 238000007670 refining Methods 0.000 claims 4
- 239000007788 liquid Substances 0.000 abstract description 17
- 239000008394 flocculating agent Substances 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 230000014759 maintenance of location Effects 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000012535 impurity Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 240000000111 Saccharum officinarum Species 0.000 description 2
- 235000007201 Saccharum officinarum Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006188 syrup Substances 0.000 description 2
- 235000020357 syrup Nutrition 0.000 description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0024—Inlets or outlets provided with regulating devices, e.g. valves, flaps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/08—Settling tanks with single outlets for the separated liquid provided with flocculating compartments
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B20/00—Purification of sugar juices
- C13B20/005—Purification of sugar juices using chemicals not provided for in groups C13B20/02 - C13B20/14
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Non-Alcoholic Beverages (AREA)
Abstract
The invention discloses a settler for sugar production with variable sedimentation area, wherein the barrel body of the settler is formed by splicing two or more than two barrel bodies with different diameters, the upper part and the lower part are different, a juice inlet pipe which is communicated with the center of the barrel body is arranged outside each barrel body, a clear juice collecting ring pipe is arranged at the upper part of each barrel body, and a clear juice valve is arranged on each clear juice ring pipe. The principle is as follows: the sugar juice added with the flocculating agent enters the barrel body of the settler through the juice inlet pipe, enters the settler from the lower part of the barrel body, and is discharged through the clear juice collecting ring pipe. When the settling area needs to be increased and the liquid level needs to be improved, the valve on the clear juice collecting ring pipe on the lower layer is closed, the cross section area and the whole working volume of the upper part of the settler are increased along with the rising of the liquid level, and clear juice enters the clear juice collecting ring pipe at the upper end and is discharged. The settler of the invention has adjustable working volume and adjustable settling area.
Description
Technical Field
The invention relates to solid-liquid separation equipment applied to the field of sugar production, in particular to a settler with a variable sedimentation area for sugar production.
Background
In the sugar production, the sugar juice is added with auxiliary materials and heated to a set temperature, then the sugar juice enters a settler for solid-liquid separation, the obtained clear juice enters an evaporation working section for concentration to obtain syrup, then the syrup is crystallized into white sugar, and the mud juice is sent to a filtration working section to obtain filter mud which is used as fertilizer. Therefore, the quality of the juice has a significant impact on product quality and cook recovery. The sugar juice added with the auxiliary materials continues to react in the settler, so the hydraulic retention time of the sugar juice in the settler is both the time of solid-liquid separation and the time of chemical reaction. The hydraulic retention time in the settler is designed not only to take into account the clarity of the juice produced, but also to take into account whether the chemical reaction is appropriate. In addition, the design of the settler also takes into account that the residence time of the mud juice in the equipment is as short as possible, because the impurities in the mud juice contain many organic components, and the proportion of the impurities in the mud juice dissolved into the clear juice increases with the time under the high-temperature condition, thereby affecting the product quality and the sugar juice purity.
The work efficiency and the subsidence area of settler are directly proportional to the settlement face is divided, current settler mainly divide into duo Er settler and individual layer settler, and wherein the duo Er settler is equipped with 5 ~ 7 settlement faces in the ware, subsides the number of piles through the increase and increase the settlement area, and every layer has solitary toper mud juice concentrated layer and advances the juice pipe, and the sugar juice impurity subsides after the separation, the bottom is scraped into to mud juice successive layer under the effect of scraping the mud system, discharges from the mud pipe. The defects of the method are as follows: 1. the mud juice passes through the conical interlayer from top to bottom step by step, and the mud juice can reach the bottom layer to be discharged after being dispersed and then descending and concentrating on each layer, so that the retention time of the mud juice in the equipment is longer. 2. When the upper layer of mud juice enters the lower layer of sedimentation surface, the interference is generated with the lower layer of juice entering, the solid-liquid separation speed is slow, and the hydraulic retention time of the prior better Doule settler is about 90 minutes. 3. The scraper cone of a Dour settler usually has an angle of 20 degrees, and when the settler is not operated in a full tank, sugar juice at the upper part close to the center is isolated at the uppermost layer by an interlayer and is difficult to flow out, and dead water of about 10 cubic meters is usually present. These factors are very detrimental to the product quality and have been replaced in recent years by single-deck rapid settlers with only one settling surface.
Compared with a Dour settler, the single-layer settler only has one mud juice concentration layer, so that the interference frequency of juice feeding and mud juice is reduced, the settling speed is greatly improved, and the hydraulic retention time can reach about 50 minutes; in addition, because no interlayer is arranged, the upper part of the sugar juice has no dead angle, the mud juice has short retention time, the impurity dissolved substances are less, the color value of the product is favorably reduced, and the purity of the sugar juice is improved.
The cylinder body part of the single-layer settler is in a straight cylinder form, and the sedimentation area is constant. The patent CN201581083U of the applicant discloses a liquid level adjustable sugar juice single-layer sedimentation system, wherein a sedimentation main body adopts a straight cylinder form with the same upper and lower diameters, and a plurality of layers of juice outlet pipes are arranged to adjust the hydraulic retention time, so that the neutralization reaction effect is optimized by adjusting the hydraulic retention time under the condition of constant juice yield.
In recent years, due to the problems of difficult cutting and transportation of sugarcane, a plurality of sugar mills have the problem of great fluctuation of the squeezed juice caused by fluctuation of the supply of the sugarcane, the fluctuation range of the squeezed juice of a part of the sugar mills is as high as 50%, the original quick settler can not meet the production requirement, and the technical defects are as follows: the original liquid level adjustable quick settler only increases the working volume by improving the liquid level, and is used as a key factor of the design of the settler, namely that the sedimentation area is not adjustable. When the squeezing amount is increased and the sedimentation area is insufficient, the sedimentation effect is not good, which is not favorable for stabilizing the product quality.
Disclosure of Invention
The invention provides a variable-sedimentation-area sugar-making settler, which can adapt to wide-range squeezing quantity change and aims to solve the problem that the existing single-layer settler for sugar-making can not adjust the sedimentation area and the working volume at the same time.
The invention adopts the following technical scheme to realize the purpose:
a settler for sugar production with variable sedimentation area is characterized in that the settler cylinder body is formed by splicing at least two cylinder bodies with large upper part and small lower part, and the settler cylinder body at least comprises a conical cylinder body; a central down-flow pipe with an opening at the lower end is arranged in the center of the barrel body of the settler, and a juice inlet pipe is connected with the central down-flow pipe; at least two layers of clear juice collecting ring pipes which are positioned at different horizontal heights are arranged in the barrel body of the settler, and clear juice valves are arranged on the clear juice collecting ring pipes; the lower end of the settler cylinder is connected with a mud juice collecting cone hopper. The working principle is as follows: the sugar juice added with the flocculating agent enters a central downcomer through a juice inlet pipe, enters the settler from the lower part of a barrel body of the settler, the clear juice is discharged through a clear juice collecting ring pipe, and the mud juice is collected by a mud juice collecting cone hopper. When the settling area needs to be increased and the liquid level needs to be improved, the valve on the lower layer of clear juice collecting ring pipe is closed, the diameter and the area of the upper part of the settler are increased along with the rising of the liquid level, and clear juice enters the upper end of the clear juice collecting ring pipe and is discharged.
Further, the settler cylinder is arranged as a conical cylinder with a large top and a small bottom to avoid solid particles depositing on the top. Preferably, the included angle between the cone of the cone-shaped cylinder and the plane is 95-140 degrees.
Furthermore, be provided with into juice dispersion board between settler barrel and the mud juice collection awl fill, prevent that the mud juice that the sugar juice impacted the bottom from causing the sugar juice muddy.
Furthermore, the included angle between the cone of the mud juice collecting cone hopper and the horizontal plane is 15-45 degrees, and the mud juice collecting effect is optimal at the moment.
Furthermore, at least one group of annular anti-convection plates are arranged in the settler barrel and distributed around the center line of the settler barrel, and the first group of annular anti-convection plates are arranged below the first layer of clear juice collecting ring pipe to prevent sugar juice from convecting in the settler to cause turbidity of the sugar juice; in order to prevent particles from being attached to the annular anti-convection plate, the plane included angle of the annular anti-convection plate is set to be 45-140 degrees, and preferably, the plane included angle is 60-120 degrees.
Furthermore, a mud scraping device is arranged on the inclined plane of the mud juice collecting conical hopper of the settler, and the bottom of the mud juice collecting conical hopper is connected with a mud juice concentrating hopper and a mud juice outlet so as to be beneficial to discharging mud juice.
The invention has the beneficial effects that:
1. the settling area and the working volume can be adjusted simultaneously by splicing the settling device cylinders with different diameters. When the squeezing quantity is increased, the sedimentation area and the working volume can be increased by increasing the liquid level under the condition that the number of sedimentation layers is not increased, and the hydraulic retention time of the mud juice is still short while the sedimentation effect is ensured.
2. Because no interlayer is arranged, no dead angle which does not flow exists at the upper part of the liquid level of the settler, and the sugar juice is not colored.
3. In order to reduce the deposition of solid particles in equipment, the included angle between the cone and the plane of the cone-shaped cylinder body is 95-140 degrees, and the included angle between the plane of the annular anti-convection plate is 45-140 degrees, so that the particles cannot be attached to the surface of the equipment and are discharged by the mud juice concentration hopper in time, and the problem that the particles stay in the equipment for too long time to dissolve out impurities is avoided.
4. The diameter of the barrel body of the settler is small at the bottom and large at the top, so that the foundation area of the settler is saved, the foundation does not need to be made again in the expansion process of a sugar refinery, the foundation investment is saved, and the arrangement is convenient.
Drawings
FIG. 1 is a schematic diagram of a settler according to the present invention.
In the figure, 1, a settler cylinder; 2. a central downcomer; 3. a juice inlet pipe; 4. collecting clear juice in a ring pipe; 5. a juice valve; 6. a mud juice collecting cone hopper; 7. a juice inlet dispersion plate; 8. an annular anti-convection plate; 9. a mud scraping device; 10. a mud juice concentrating hopper; 11. a mud juice outlet.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings.
As shown in figure 1, the invention provides a settler for sugar production with variable sedimentation area, which is characterized in that a settler cylinder body (1) is formed by splicing at least two cylinder bodies with large upper parts and small lower parts, and the settler cylinder body (1) at least comprises a conical cylinder body; a central down-flow pipe (2) with an opening at the lower end is arranged in the center of the barrel body (1) of the settler, and a juice inlet pipe (3) is connected with the central down-flow pipe (2); at least two layers of clear juice collecting ring pipes (4) which are positioned at different horizontal heights are arranged in the settler cylinder body (1), and a clear juice valve (5) is arranged on each clear juice collecting ring pipe (4); the lower end of the settler cylinder body (1) is connected with a mud juice collecting cone hopper (6). The working process of the device is as follows: the sugar juice added with the flocculating agent enters a central downcomer (2) through a juice inlet pipe (3), enters the settler from the lower part of a barrel body (1) of the settler, clear juice is discharged through a clear juice collecting ring pipe (4), and mud juice is collected by a mud juice collecting cone hopper (6). When the settling area needs to be increased and the liquid level needs to be improved, the juice valve (5) on the lower layer of the clear juice collecting ring pipe (4) is closed, the diameter and the area of the upper part of the settler are increased along with the rising of the liquid level, and clear juice enters the clear juice collecting ring pipe (4) at the upper end and is discharged.
As shown in figure 1, the settler for sugar production with variable settling area is characterized in that a settler cylinder (1) of the settler is a conical cylinder with a large upper part and a small lower part, so that solid particles are prevented from being deposited on the settler. When the included angle between the cone of the cone-shaped cylinder and the plane is 95-140 degrees, the solid particle deposition is least.
As shown in figure 1, the sugar-making settler with variable sedimentation area has the advantages that a juice inlet dispersion plate (7) is arranged between a settler cylinder body (1) and a mud juice collecting cone hopper (6), and the mud juice at the bottom can be prevented from impacting to cause turbidity of the sugar juice.
As shown in figure 1, the included angle between the cone shape of the mud juice collecting cone hopper (6) and the horizontal plane of the settler for sugar manufacture with the variable sedimentation area is 15-45 degrees, and the mud juice collecting effect is optimal at the moment.
As shown in fig. 1, the sugar-making settler with variable settling area is characterized in that at least one group of annular anti-convection plates (8) is further arranged in the settler cylinder (1), the annular anti-convection plates (8) are distributed around the center line of the settler cylinder (1), and the first group of annular anti-convection plates (8) is arranged below the first layer of clear juice collecting ring pipe (4) to prevent the sugar juice from convecting in the settler to cause turbidity of the sugar juice; in order to prevent particles from being attached to the annular anti-convection plate (8), the plane included angle of the annular anti-convection plate (8) is set to be 45-140 degrees, and the effect is best when the plane included angle of the annular anti-convection plate (8) is 60-120 degrees.
As shown in figure 1, the settler for sugar production with variable settling area is characterized in that a mud scraping device (9) is arranged on the inclined surface of a mud juice collecting cone bucket (6) of the settler, and the bottom of the mud juice collecting cone bucket (6) is connected with a mud juice concentrating bucket (10) and a mud juice outlet (11), thereby being beneficial to discharging mud juice.
The device can simultaneously realize the adjustment of the sedimentation area and the working volume by splicing the settler cylinders with different diameters; when the squeezing quantity is increased, the sedimentation area and the working volume can be increased by increasing the liquid level under the condition of not increasing the number of sedimentation layers, and the hydraulic retention time of the mud juice is still short while the sedimentation effect is ensured. Because no interlayer is arranged, no dead angle which does not flow exists at the upper part of the liquid level of the settler, and the sugar juice is not colored. The reasonable design of the included angle between the cone and the plane of the cone-shaped cylinder body and the plane included angle of the annular anti-convection plate can reduce the deposition of solid particles in equipment. In addition, the diameter of the barrel body of the settler is small at the bottom and large at the top, so that the foundation area of the settler is saved, the foundation does not need to be made again in the sugar refinery during extension, the foundation investment is saved, and the arrangement is convenient.
Claims (7)
1. The sugar making settler with the variable sedimentation area is characterized in that a settler cylinder body is formed by splicing at least two cylinder bodies with large upper parts and small lower parts, the settler cylinder body at least comprises a conical cylinder body, the conical cylinder body is a conical cylinder body with large upper parts and small lower parts, and the included angle between the cone of the conical cylinder body and a plane is 95-140 degrees; a central down-flow pipe with an opening at the lower end is arranged in the center of the barrel body of the settler, and a juice inlet pipe is connected with the central down-flow pipe; at least two layers of clear juice collecting ring pipes which are positioned at different horizontal heights are arranged in the barrel body of the settler, and clear juice valves are arranged on the clear juice collecting ring pipes; the lower end of the settler cylinder is connected with a mud juice collecting cone hopper; and no interlayer is arranged in the settler cylinder.
2. The variable sedimentation area sugar manufacturing settler according to claim 1, wherein a juice inlet dispersing plate is provided between the settler vessel and the slurry collection cone.
3. A variable area sugar refining settler according to claim 1, wherein the angle between the cone of the slurry collection cone and the horizontal plane is between 15 ° and 45 °.
4. A variable settling area sugar refining settler according to any one of claims 1 to 3, wherein at least one set of annular anti-convection plates is further provided in the settler body, said annular anti-convection plates being distributed around the centerline of the settler body, the first set of annular anti-convection plates being provided below the first layer of juice collection loops.
5. The variable settling area sugar refining settler of claim 4, wherein the included angle of the plane of the annular anti-convection plate is 45 ° to 140 °.
6. The variable settling area sugar refining settler of claim 5, wherein said annular anti-convection plate has an included angle of 60 ° to 120 ° in the plane.
7. The sugar manufacturing settler with the variable settling area as set forth in any one of claims 1 to 3, wherein the inclined surface of the slurry collection cone is provided with a scraper, and the bottom of the slurry collection cone is connected to the slurry concentration hopper and the slurry discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291288.6A CN108786198B (en) | 2017-04-28 | 2017-04-28 | Subside variable sugar manufacturing of area and use settler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291288.6A CN108786198B (en) | 2017-04-28 | 2017-04-28 | Subside variable sugar manufacturing of area and use settler |
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| Publication Number | Publication Date |
|---|---|
| CN108786198A CN108786198A (en) | 2018-11-13 |
| CN108786198B true CN108786198B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710291288.6A Expired - Fee Related CN108786198B (en) | 2017-04-28 | 2017-04-28 | Subside variable sugar manufacturing of area and use settler |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663552Y (en) * | 2003-11-09 | 2004-12-15 | 张其武 | Inner and outer ring regular polygon accelerated clarification tank |
| CN201030248Y (en) * | 2006-12-31 | 2008-03-05 | 湖南华迪电力环保工程技术有限公司 | Clarifying concentrator |
| CN201245445Y (en) * | 2008-07-25 | 2009-05-27 | 山东联合化工股份有限公司 | Thickener |
| CN201581083U (en) * | 2009-10-13 | 2010-09-15 | 南宁苏格尔科技有限公司 | Liquid level adjustable type sugar juice single-layer settling system |
| CN105617724A (en) * | 2014-10-31 | 2016-06-01 | 南宁苏格尔科技有限公司 | Syrup single-layer settling system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2414939A1 (en) * | 1978-01-18 | 1979-08-17 | Cerveira De Mello Ribeiro Pint | CONTINUOUS CLARIFICATION AND DECANTATION APPARATUS |
-
2017
- 2017-04-28 CN CN201710291288.6A patent/CN108786198B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663552Y (en) * | 2003-11-09 | 2004-12-15 | 张其武 | Inner and outer ring regular polygon accelerated clarification tank |
| CN201030248Y (en) * | 2006-12-31 | 2008-03-05 | 湖南华迪电力环保工程技术有限公司 | Clarifying concentrator |
| CN201245445Y (en) * | 2008-07-25 | 2009-05-27 | 山东联合化工股份有限公司 | Thickener |
| CN201581083U (en) * | 2009-10-13 | 2010-09-15 | 南宁苏格尔科技有限公司 | Liquid level adjustable type sugar juice single-layer settling system |
| CN105617724A (en) * | 2014-10-31 | 2016-06-01 | 南宁苏格尔科技有限公司 | Syrup single-layer settling system |
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| CN108786198A (en) | 2018-11-13 |
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Granted publication date: 20220322 |