CN110860225A - Dilution control method for solid chemical products - Google Patents
Dilution control method for solid chemical products Download PDFInfo
- Publication number
- CN110860225A CN110860225A CN201811034800.XA CN201811034800A CN110860225A CN 110860225 A CN110860225 A CN 110860225A CN 201811034800 A CN201811034800 A CN 201811034800A CN 110860225 A CN110860225 A CN 110860225A
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- container
- diluent
- use solution
- weight
- chemical product
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Links
- 239000000126 substance Substances 0.000 title claims abstract description 65
- 239000007787 solid Substances 0.000 title claims abstract description 31
- 238000010790 dilution Methods 0.000 title claims description 8
- 239000012895 dilution Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 8
- 239000003085 diluting agent Substances 0.000 claims abstract description 40
- 239000000243 solution Substances 0.000 claims description 53
- 238000005303 weighing Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 40
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 235000013361 beverage Nutrition 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- -1 bleaches Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 239000002979 fabric softener Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 230000000887 hydrating effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- 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
- B01F21/00—Dissolving
- B01F21/02—Methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/30—Workflow diagrams or layout of plants, e.g. flow charts; Details of workflow diagrams or layout of plants, e.g. controlling means
-
- 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
- B01F23/51—Methods thereof
-
- 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
- B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
-
- 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
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2117—Weight
-
- 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
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2206—Use of stored recipes for controlling the computer programs, e.g. for manipulation, handling, production or composition in mixing plants
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Accessories For Mixers (AREA)
Abstract
The solid chemical product is formulated to produce a desired amount of use solution having a desired concentration of the chemical product. In some examples, a target amount of diluent and a target amount of chemical product required to prepare a desired use solution are determined. A target amount of diluent is dispensed into the container. At least some of the diluent in the container is applied to the solid chemical product to produce a final use solution that is directed back into the container. The diluent in the container is applied to the chemical product until the amount of use solution in the container meets the required amount. In some examples, the target amount of diluent and the target amount of chemical product are measured gravimetrically.
Description
Technical Field
The invention relates to chemical product distribution, in particular to a dilution control method for a solid chemical product.
Background
Automated chemical product dispensers are useful in many different chemical application systems, including cleaning systems related to food and beverage operations, laundry operations, dishwashing operations (e.g., dishwashers), water treatment operations, pool and SPA maintenance, and OOD. R systems, e.g. agricultural operations. For example, chemical products used in food and beverage operations may include disinfectants, sanitizers, cleaners, degreasers, lubricants, and the like. Chemical products used in washing or laundry operations may include detergents, deionized water, sanitizing solutions, detergents, rinsing agents, and the like. Products used in laundry operations may include detergents, bleaches, soil release agents, fabric softeners, and the like. Chemical products used in agriculture may include, but are not limited to, pesticides, herbicides, hydrating agents, and fertilizers. Chemical products used for medical/surgical instrument cleaning may include detergents, cleaning products, neutralizers, disinfecting solutions, disinfectants, enzymes, and the like. Other chemicals may not include glass cleaning chemicals, hard surface cleaners, anti-microbial agents, biocides. Lubricants, water treatment agents, rust inhibitors, and the like. Automated chemical product dispensers can reduce labor and chemical costs by automatically delivering predetermined amounts of chemicals in the proper sequence and quantity, typically in very large or high-speed quantities. In addition, some chemical products may be in a dangerous, concentrated form; thus, the automated chemical product dispenser reduces the risk of exposure to operators who may manually measure and deliver chemical products. Product dispensers dispense a wide variety of chemical products in a number of different forms. Some dispensers dispense the product in liquid, gel, or powder form. Other dispensers may use a water spray to gradually dissolve the solid product to create a use solution. The chemical product may be dispensed to a dispensing location.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned deficiencies of the prior art and providing a solid chemical dilution control method that reduces the risk of exposure to operators who may manually measure and deliver chemical products.
The technical scheme of the invention is as follows: dispensing a target amount of diluent into the container and applying at least some of the diluent from the container to the solid chemical product and directing the resulting use solution back into the container until the amount of use solution in the container meets the required amount; applying the diluent includes spraying at least some of the diluent from the container onto the solid chemical product; receiving a dispense request specifying a requested amount of use solution and a desired concentration of chemical product in the use solution; determining a target weight of diluent required to prepare a desired use solution; and determining a target weight of the chemical product; the need to distribute the usage solutions required for preparation; dispensing a target amount of diluent into the container further comprises electronically controlling a valve through which the diluent is dispensed into the container; receiving container weight information from a weighing device, the weighing device positioned to measure a weight of the container; slave container weight information; matching the weight of diluent in the container to a target weight of diluent required to prepare a desired use solution; and based on the comparison, the electronically controlled valve stops dispensing of the diluent into the container; applying the diluent to dispense the solid chemical product includes initiating a spray on/off cycle including spraying at least a portion of the diluent from the container with the solid chemical product for a first predetermined time and stopping the spraying of the solid chemical for a second predetermined time; formed from a weighing device for measuring the weight of the container; determining a weight of the use solution in the container from the weight information; the difference between the target weight of the requested use solution and the weight in the use solution is compared. A container having a threshold value, and repeating a spray on/off cycle until the threshold value is met.
Applying the diluent to the solid chemical product corrodes or dissolves the solid chemical product to produce the final use solution.
Applying the diluent to dispense the solid chemical product includes determining a weight of the use solution in the container from the weight information; the ER dynamic settling time has elapsed, determining a dispensing rate corresponding to the chemical product dispensed per unit time from a change in weight of the use solution in the container; a dynamic target weight of the use solution in the container is determined based on the tar. Obtaining a weight of the requested use solution; determining a dynamic cycle time based on the dynamic objective and the allocation rate; and stopping the injection of the chemical product after the dynamic cycle time has elapsed.
The dynamic target is defined as a percentage of the difference between the requested target weight of the use solution and the actual weight of diluent in the container determined at the time the target amount of diluent was dispensed. The minimum weight of the use solution and the container within the container after the container has been initially sprayed with the solid chemical product.
The invention has the beneficial effects that: the risk of exposure to operators who may manually measure and deliver chemical products is reduced.
Drawings
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
In fig. 1, the contents of container 30 are applied to solid chemical product 20 to prepare the requested use solution. System 10 includes a container 30 of ready-to-use solution, a weight measurement 32 to measure the weight of the container and its contents, dispenser housing 14 to receive solid chemical product 20, and a liquid circulation subsystem to draw diluent from the container. The diluent is sprayed onto the solid chemical product and the resulting solution is introduced into the container. The liquid circulation subsystem includes various valves (e.g., valves 22, 26, 38, 44) and pumps (12, 24) and piping that circulate the contents 31 of the container 30 and apply them to the chemical product 20 to prepare a use solution. Although the specific arrangement of the hydronic subsystem is shown. 1 and 2, it being understood that these are merely examples and that any other arrangement capable of accomplishing the task of liquid circulation may be used. The controller 40 may receive a dispense request specifying the volume of use solution to be used and the desired concentration of chemical product in the prepared solution. Based on this information, the controller 40 determines a target weight of diluent required to prepare the desired use solution and determines a target weight of chemical product required to prepare the desired use solution. The allocation request may be input by a user and/or may be stored electronically in memory. For example, the user may input a dispense request specifying the amount of use solution to be prepared and the requested concentration of use solution. As another example, the controller 40 may store a programmed sequence of allocation requests to be prepared at a certain time of day or in a predefined sequence. As another example, the allocation request may be automatically generated when it is determined that more usage solutions are needed. For example, if the use solution is removed from the container 30 as needed, the off-product sensor can detect when the container is empty or nearly empty. The off-product sensor may then automatically generate a dispense request. Similarly, if a container 30 is drawn from a known number, an allocation request may be automatically generated after the drawing of a certain number of known empty containers. Controller 40 is connected to control the operation of electronically controlled pumps (e.g., pumps 12 and 24) and valves (e.g., valves 22, 26, 38, and 44). The controller 40 also receives container weight information from the weighing device 34. The user interface 35 may allow a user to start and/or stop operation of the system, program various dispenser settings, input parameters for customizing usage solutions, select from a preprogrammed usage plan menu, select from a menu of dispensing modes, perform maintenance and troubleshooting operations, and the like. The memory 52 stores software modules that control various operations and functions of the system, such as a dispenser setting 54. The memory 52 may also store software modules corresponding to one or more distribution patterns. The distribution modes provided by the system may include, for example, a timed allocation mode, an adjusted single shot allocation mode, an adjusted multiple shot allocation mode, and/or other allocation modes. The memory 52 may store respective software modules, such as a timing allocation module 55, an adjusted single lens module 56, an adjusted multi-lens module 57, and/or software modules corresponding to other allocation modes that may be employed. Depending on the use solution being prepared, the use of different dispensing patterns may provide for faster use solution preparation and/or increased use solution concentration accuracy.
Claims (4)
1. A dilution control method for solid chemical products is characterized by comprising the following steps: dispensing a target amount of diluent into the container and applying at least some of the diluent from the container to the solid chemical product and directing the resulting use solution back into the container until the amount of use solution in the container meets the required amount; applying the diluent includes spraying at least some of the diluent from the container onto the solid chemical product; receiving a dispense request specifying a requested amount of use solution and a desired concentration of chemical product in the use solution; determining a target weight of diluent required to prepare a desired use solution; and determining a target weight of the chemical product; the need to distribute the usage solutions required for preparation; dispensing a target amount of diluent into the container further comprises electronically controlling a valve through which the diluent is dispensed into the container; receiving container weight information from a weighing device, the weighing device positioned to measure a weight of the container; slave container weight information; matching the weight of diluent in the container to a target weight of diluent required to prepare a desired use solution; and based on the comparison, the electronically controlled valve stops the dispensing of diluent into the container: applying the diluent to dispense the solid chemical product includes initiating a spray on/off cycle including spraying at least a portion of the diluent from the container with the solid chemical product for a first predetermined time and stopping the spraying of the solid chemical for a second predetermined time; formed from a weighing device for measuring the weight of the container; determining a weight of the use solution in the container from the weight information; the difference between the target weight of the requested use solution and the weight in the use solution is compared. A container having a threshold value, and repeating a spray on/off cycle until the threshold value is met.
2. The dilution control method for solid chemical products according to claim 1, wherein: applying the diluent to the solid chemical product corrodes or dissolves the solid chemical product to produce the final use solution.
3. The dilution control method for solid chemical products according to claim 1, wherein: applying the diluent to dispense the solid chemical product includes determining a weight of the use solution in the container from the weight information; the ER dynamic settling time has elapsed, determining a dispensing rate corresponding to the chemical product dispensed per unit time from a change in weight of the use solution in the container; a dynamic target weight of the use solution in the container is determined based on the tar. Obtaining a weight of the requested use solution; determining a dynamic cycle time based on the dynamic objective and the allocation rate; and stopping the injection of the chemical product after the dynamic cycle time has elapsed.
4. The dilution control method for solid chemical products according to claim 1, wherein: the dynamic target is defined as a percentage of the difference between the requested target weight of the use solution and the actual weight of diluent in the container determined at the time the target amount of diluent was dispensed. The minimum weight of the use solution and the container within the container after the container has been initially sprayed with the solid chemical product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811034800.XA CN110860225A (en) | 2018-08-27 | 2018-08-27 | Dilution control method for solid chemical products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811034800.XA CN110860225A (en) | 2018-08-27 | 2018-08-27 | Dilution control method for solid chemical products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110860225A true CN110860225A (en) | 2020-03-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811034800.XA Pending CN110860225A (en) | 2018-08-27 | 2018-08-27 | Dilution control method for solid chemical products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110860225A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917778B (en) * | 2010-05-20 | 2016-06-01 | 艺康美国股份有限公司 | Dilution Control of Solid Chemical Products |
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2018
- 2018-08-27 CN CN201811034800.XA patent/CN110860225A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917778B (en) * | 2010-05-20 | 2016-06-01 | 艺康美国股份有限公司 | Dilution Control of Solid Chemical Products |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20200306 |