CN211847307U - PH automatic adjusting and dosing system for slaughter sewage - Google Patents
PH automatic adjusting and dosing system for slaughter sewage Download PDFInfo
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- CN211847307U CN211847307U CN202020129771.1U CN202020129771U CN211847307U CN 211847307 U CN211847307 U CN 211847307U CN 202020129771 U CN202020129771 U CN 202020129771U CN 211847307 U CN211847307 U CN 211847307U
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- acid
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- 239000010865 sewage Substances 0.000 title claims abstract description 23
- 238000003307 slaughter Methods 0.000 title claims abstract description 17
- 239000003814 drug Substances 0.000 claims abstract description 50
- 239000000126 substance Substances 0.000 claims abstract description 29
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 16
- 239000003513 alkali Substances 0.000 claims abstract description 12
- 239000002585 base Substances 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 12
- 230000029219 regulation of pH Effects 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000002351 wastewater Substances 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000006210 lotion Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 9
- 235000013372 meat Nutrition 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000036541 health Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
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- 238000000034 method Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
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- 244000144972 livestock Species 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
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Abstract
The utility model discloses an automatic PH regulation and dosing system for slaughter sewage, which comprises a sewage tank, a PLC control box, a chemical medicine tank, an industrial PH meter, an acid-base neutralization tank and a pipeline mixer, wherein an industrial PH meter sensor is arranged in the acid-base neutralization tank and is connected with the industrial PH meter; the industrial PH meter is connected with the input end of the PLC control box, the chemical medicine tank is provided with a metering pump, and the output end of the PLC control box is connected with the metering pump; an acid liquor storage tank and an alkali liquor storage tank are arranged in the chemical medicine tank, the top of the chemical medicine tank is connected with a pipeline mixer through a conveying pipe, and the pipeline mixer is arranged on a connecting pipeline of the acid-alkali neutralization pond and the sewage pond. The automatic PH regulation and medicine adding system for slaughter sewage of the utility model does not need to manually regulate the medicine adding amount, and reduces manpower and material resources; and PLC centralized control is adopted, so that the management and maintenance are convenient, the operation is simple, and the installation is simple and practical.
Description
Technical Field
The utility model belongs to the technical field of the PH automatically regulated adds the medicine, especially relate to a PH automatically regulated medicine system for slaughtering sewage.
Background
The PH on-line tester developed rapidly in japan, particularly in the 70 s and 80 s, and the first commercial PH meter in the world was developed and produced by Arnold Beckman in 1936. The appearance of industrial pH meters was near the end of the 4O's. The first industrial pH meter manufactured in japan was developed by the institute of electrical chemistry in japan (DKK predecessor) in 1951, and the industrial pH meter was developed and manufactured by the motor of the takawa motor in japan in 1953.
In the process of slaughtering and meat processing, a large amount of water is consumed, and simultaneously, waste water containing pollutants such as blood stain, grease, hair, meat scraps, impurities in internal organs of livestock and poultry, undigested food and excrement is removed, and the waste water also contains a large amount of microorganisms harmful to human health. If the meat processing wastewater is directly discharged without being treated, serious pollution is caused to the water environment, and the health of people and livestock is harmed.
Most of pollutants contained in the meat processing wastewater belong to organic matters easy to biodegrade, and dissolved oxygen in water can be rapidly consumed after the pollutants are discharged into a water body, so that fishes and aquatic organisms die due to oxygen deficiency; the water body is converted into an anaerobic state due to oxygen deficiency, so that the water quality is deteriorated, odor is generated, and sanitation is affected. Meanwhile, pathogenic microorganisms in the wastewater can propagate in a large quantity, and harm the health of people. The treatment of the slaughtered meat processing wastewater to remove the pollution thereof is necessary to protect the ecological environment and human health.
In prior art, often adjust the PH of waste water through artifical the measurement earlier, add the medicine according to the PH numerical value again, stir waste water at last, guarantee the mixture of medicament, nevertheless need repeat this operation after a period again, it is big to have intensity of labour, and the problem that work efficiency is low, and the human input cost is higher, is difficult to satisfy the demand.
Therefore, how to solve the above-mentioned drawbacks of the prior art becomes the direction of efforts of those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be used for slaughtering sewage PH automatically regulated charge system reduces artifical input cost, can solve above-mentioned prior art's weak point completely.
The purpose of the utility model is realized through the following technical scheme: an automatic PH regulation and dosing system for slaughter sewage comprises a sewage tank, a PLC (programmable logic controller) control box, a chemical medicine tank, an industrial PH meter, an acid-base neutralization tank and a pipeline mixer, wherein an industrial PH meter sensor is arranged in the acid-base neutralization tank and is connected with the industrial PH meter; the industrial PH meter is connected with the input end of the PLC control box, the chemical medicine tank is provided with a metering pump, and the output end of the PLC control box is connected with the metering pump; an acid liquor storage tank and an alkali liquor storage tank are arranged in the chemical medicine tank, the top of the chemical medicine tank is connected with a pipeline mixer through a conveying pipe, and the pipeline mixer is arranged on a connecting pipeline of the acid-alkali neutralization pond and the sewage pond.
As one of the preferred mode, the output of industry PH meter sensor links to each other with the input of industry PH meter, and the output of industry PH meter links to each other with the input of PLC control box, and the output of PLC control box links to each other with the measuring pump, and the measuring pump links to each other with the lotion assembly in the chemical medicine jar, and the output of chemical medicine jar links to each other with the effluent water sump.
Preferably, the pipeline mixer is a static spiral blade mixer, each section of the mixer is provided with a fixed spiral blade twisted by 180 degrees, and the spiral blades in two adjacent sections rotate in opposite directions and are staggered by 90 degrees.
As one of the preferred modes, the pipeline mixer is in the shape of a cylinder body, the cylinder body mainly comprises two semicircular arc-shaped sheets, two ends of the cylinder body are connected through flanges, and gaps of the cylinder body are bonded through epoxy resin.
As one of the preferable modes, the upper part of the pipeline mixer is provided with a dosing port, the dosing port is connected with a dosing nozzle, the conveying pipe is connected with the dosing nozzle, and the lower part of the pipeline mixer is communicated with the connecting pipe.
Compared with the prior art, the beneficial effects of the utility model reside in that: the automatic PH regulation and medicine adding system for slaughter sewage of the utility model does not need to manually regulate the medicine adding amount, and reduces manpower and material resources; and PLC centralized control is adopted, so that the management and maintenance are convenient, the operation is simple, and the installation is simple and practical.
Drawings
FIG. 1 is a schematic structural view of the automatic PH regulation and dosing system for slaughtering sewage.
Fig. 2 is a schematic view of the structure of the line mixer of fig. 1.
In the drawings: a pipeline mixer 1, an industrial PH meter 2; a pH meter sensor 3; a metering pump 4; a PLC control box 5; a sewage tank 6; a connecting pipe 7; a chemical medicine tank 8; an acid-base neutralization tank 9, a delivery pipe 10, a medicine adding port 11 and a medicine adding nozzle 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-2, an automatic PH adjusting and dosing system for slaughter wastewater comprises a wastewater tank 6, a PLC control box 5, a chemical medicine tank 8, an industrial PH meter 2, an acid-base neutralization tank 9 and a pipeline mixer 1, wherein an industrial PH meter sensor 3 is arranged in the acid-base neutralization tank 9, and the industrial PH meter sensor 3 is connected with the industrial PH meter 2; the industrial PH meter 2 is connected with the input end of a PLC control box 5, a metering pump 4 is arranged on a chemical medicine tank 8, and the output end of the PLC control box 5 is connected with the metering pump 4; an acid liquor storage tank and an alkali liquor storage tank are arranged in the chemical medicine tank 8, the top of the chemical medicine tank 8 is connected with the pipeline mixer 1 through the delivery pipe 10, and the pipeline mixer 1 is arranged on a connecting pipeline 7 of the acid-alkali neutralization tank 9 and the sewage tank 6. The upper part of the pipeline mixer 1 is provided with a dosing port 11, the dosing port 11 is connected with a dosing nozzle 12, the conveying pipe is connected with the dosing nozzle, and the lower part of the pipeline mixer is communicated with the connecting pipe.
The output of industry PH meter sensor 3 links to each other with the input of industry PH meter 2, and the output of industry PH meter 2 links to each other with the input of PLC control box 5, and the output of PLC control box 5 links to each other with measuring pump 4, and measuring pump 4 links to each other with the lotion assembly in the chemical medicine jar 8, and the output of chemical medicine jar 8 links to each other with effluent water sump 6.
Wherein:
the PLC control box plays a role in overall control.
A metering pump: the metering pump is a variable pump with variable output flow under the condition of constant rotating speed, and the output flow of the variable pump can automatically adjust the flow according to the pressure change of the system; the output flow is small when the pressure is high, and the output flow is large when the pressure is low, so that the number of hydraulic elements can be saved, an oil way system is simplified, and the oil heating can be reduced. The measuring pump is reciprocating type displacement pump, and output flow receives outlet pressure to change to influence lessly, and the measuring pump precision generally requires within 1% the utility model discloses in as measurement conveying equipment. In this application, select for use the electromagnetism diaphragm measuring pump, be the drive by the electro-magnet, for carrying small discharge low pressure liquid, overall structure is simple, easily control, the energy consumption is little, the measurement is accurate, the regulation is convenient.
The measuring pump that this embodiment was summarized can add the dose according to industrial pH meter's feedback signal automatic adjustment, adds chemical accurately, can realize automatic beginning or stop according to the liquid level condition simultaneously.
Industrial pH meter: the principle of the galvanic cell is used, and the electromotive force between two electrodes of the galvanic cell is related to the properties of the electrodes and the hydrogen ion concentration in the solution according to Nernst's law. There is a corresponding relationship between the electromotive force of the primary cell and the hydrogen ion concentration, and the negative logarithm of the hydrogen ion concentration is the pH value. The industrial pH meter has the advantages of good stability, reliable work, certain measurement precision, strong environment adaptability and strong anti-interference capability, and has the functions of analog internal output, digital communication, upper and lower limit alarm and control.
The PH meter in this embodiment can show the PH value that PH water quality detector surveyed, compares with the setting value automatically to control opening of measuring pump and stopping. The electrode set on the industrial pH meter can measure the pH value of the treated water and accurately input the measured signal into the pH display control table.
Chemical medicine tank: the medicine storage barrel is special for medicine adding equipment, installation positioning holes of metering pumps and other equipment are arranged on the medicine storage barrel, and the capacity of the medicine storage barrel is different from 500L to 1000L. The chemical medicine tank is provided with a liquid absorption assembly which can detect whether the medicine in the chemical medicine storage tank is used up or not, and send a signal to inform the metering pump to stop working when the medicine liquid is insufficient, and can filter out granular impurities mixed in the medicine liquid.
The alkaline solution contained in the chemical medicine tank can be NaOH or Na2CO3Or is Ni (OH)2And (4) suspending the solution. The acid solution may be Na2HP04Or NaHJ04。
A pipeline mixer: the pipeline mixer is arranged on a water outlet pipe after water is discharged from the sewage sedimentation tank and is made of stainless steel corrosion-resistant acid-base-resistant materials.
The pipeline mixer is a mixer without any mechanical moving parts, which can achieve the purpose of uniform mixing through the action of a certain component or a mixing element when fluid flows in a pipeline. This embodiment uses static spiral blade mixers, each having a fixed spiral blade 101 twisted by 180 °, divided into left-handed and right-handed ones. The helical blades in two adjacent sections rotate in opposite directions and are staggered by 90 degrees. In order to facilitate the installation of the helical blades, the cylinder body is made into two semi-circles, the two ends of the cylinder body are connected by flanges, and the gaps of the cylinder body are bonded by epoxy resin to ensure the sealing requirement. The static mixer has no need of external energy source except for producing pressure reduction.
When in use:
through the water quality source of the slaughter house, the blood in the wastewater mainly contains liquid, grease, broken meat, bone residues, hair, excrement and the like, and the wastewater is brownish red and has strong fishy smell. High content of organic suspended matters, easy putrefaction, consumption of dissolved oxygen in water when discharged into water, damage of ecological system and environmental pollution. In addition, the biggest difference between the waste water and other high-concentration organic waste water is NH3The N concentration is relatively high (about 120mg/l), so NH should be fully considered in the process design3-influence of N on the wastewater treatment. The process the utility model discloses a sewage PH automatically regulated medicine system handles, and the outlet pipe need install a prescription just to add the pipe mixer that the medicine mixes behind the sewage sedimentation tank play water, generally makes for corrosion-resistant acid and alkali-resistant material of stainless steel, can be according to the customization of intake pipe diameter size, has the mouth of adding the medicine on, and the mouth of a thread connection adds the medicine mouth, and flange joint sewage pipe gets into acid-base neutralization pond rear-end equipment inlet channel.
When a user selects a dosing device, firstly, the selection specification including parameters of a metering pump, the volume of a stirring box, the volume of a solution box and field conditions is determined according to the amount of solution to be dosed in the system, and then the dosing mode is determined according to the dosing condition and the determined dosing condition. The materials of all parts of the dosing device and the types of metering pumps such as a diaphragm pump and a plunger pump are selected according to requirements, or parameters of the added medicament such as name, concentration, temperature, density, viscosity, corrosivity and the like are provided.
The working principle of the PH automatic adjustment dosing system is as follows:
the pH value of liquid in the acid-base neutralization tank is detected by an industrial pH sensor and is transmitted to an industrial pH meter, and then a high control point and a low control point are preset on the industrial pH meter according to the requirements of a set production process. The industrial pH meter compares an input pH signal with a high set value and a low set value, outputs a switching signal, sends a proportional control signal to the PLC control box, the PLC control box adjusts and controls the metering pump, acid liquor or alkali liquor is extracted from the chemical medicine tank, then the acid liquor or the alkali liquor is input into the pipeline mixer to be mixed with sewage, the mixed liquid is input into the acid-alkali neutralization tank, and then the circulation is carried out again, and the industrial pH meter stops when knowing that the pH value in the sewage is adjusted to a preset value.
The PH automatic adjustment dosing system firstly sets the PH value required by the treated water on an industrial pH meter, a metering pump starts to work to add liquid medicine, the industrial pH meter detects the PH value in the water, the PH value is displayed in a control table of the industrial pH meter and is transmitted to a PLC control system, then the measured value is automatically compared with the set value, and if the measured value is different from the set value, the start and stop of the metering pump are controlled, so that the PH value in the water can be automatically controlled on the set value.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a be used for slaughtering sewage PH automatically regulated charge system, includes effluent water sump and PLC control box, its characterized in that: the chemical solution tank, the industrial PH meter, the acid-base neutralization tank and the pipeline mixer are further included, wherein an industrial PH meter sensor is arranged in the acid-base neutralization tank and connected with the industrial PH meter; the industrial PH meter is connected with the input end of the PLC control box, the chemical medicine tank is provided with a metering pump, and the output end of the PLC control box is connected with the metering pump; an acid liquor storage tank and an alkali liquor storage tank are arranged in the chemical medicine tank, the top of the chemical medicine tank is connected with a pipeline mixer through a conveying pipe, and the pipeline mixer is arranged on a connecting pipeline of the acid-alkali neutralization pond and the sewage pond.
2. The automatic PH regulation and dosing system for slaughter wastewater according to claim 1, which is characterized in that: the output of industry PH meter sensor links to each other with the input of industry PH meter, and the output of industry PH meter links to each other with the input of PLC control box, and the output of PLC control box links to each other with the measuring pump, and the measuring pump links to each other with the lotion assembly in the chemical medicine jar, and the output of chemical medicine jar links to each other with the effluent water sump.
3. The automatic PH regulation and dosing system for slaughter wastewater according to claim 1, which is characterized in that: the pipeline mixer is a static spiral blade mixer, each section of mixer is provided with a fixed spiral blade twisted by 180 degrees, and the spiral blades in two adjacent sections have opposite rotating directions and are staggered by 90 degrees.
4. The automatic PH regulation and dosing system for slaughter wastewater according to claim 3, wherein: the pipeline mixer is in the shape of a cylinder body, the cylinder body mainly comprises two semicircular arc-shaped pieces, two ends of the cylinder body are connected through flanges, and gaps of the cylinder body are bonded through epoxy resin.
5. The automatic PH regulation and dosing system for slaughter wastewater according to claim 4, wherein: the upper part of the pipeline mixer is provided with a dosing port, the dosing port is connected with a dosing nozzle, the conveying pipe is connected with the dosing nozzle, and the lower part of the pipeline mixer is communicated with the connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020129771.1U CN211847307U (en) | 2020-01-20 | 2020-01-20 | PH automatic adjusting and dosing system for slaughter sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020129771.1U CN211847307U (en) | 2020-01-20 | 2020-01-20 | PH automatic adjusting and dosing system for slaughter sewage |
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| Publication Number | Publication Date |
|---|---|
| CN211847307U true CN211847307U (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020129771.1U Expired - Fee Related CN211847307U (en) | 2020-01-20 | 2020-01-20 | PH automatic adjusting and dosing system for slaughter sewage |
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| CN (1) | CN211847307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023862A (en) * | 2021-03-19 | 2021-06-25 | 安徽国青智能环保科技有限公司 | Acid-base automatic regulating mechanism for sewage treatment |
-
2020
- 2020-01-20 CN CN202020129771.1U patent/CN211847307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023862A (en) * | 2021-03-19 | 2021-06-25 | 安徽国青智能环保科技有限公司 | Acid-base automatic regulating mechanism for sewage treatment |
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Granted publication date: 20201103 |