CN211886197U - Automatic dosing system of spraying acid-base washing tower - Google Patents
Automatic dosing system of spraying acid-base washing tower Download PDFInfo
- Publication number
- CN211886197U CN211886197U CN201922400633.2U CN201922400633U CN211886197U CN 211886197 U CN211886197 U CN 211886197U CN 201922400633 U CN201922400633 U CN 201922400633U CN 211886197 U CN211886197 U CN 211886197U
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- China
- Prior art keywords
- washing tower
- acid
- base washing
- automatic
- metering pump
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- 238000005406 washing Methods 0.000 title claims abstract description 33
- 238000005507 spraying Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003814 drug Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 abstract description 14
- 239000000126 substance Substances 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 239000012855 volatile organic compound Substances 0.000 description 10
- 239000002912 waste gas Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 239000003153 chemical reaction reagent Substances 0.000 description 8
- 238000005201 scrubbing Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
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- 238000011897 real-time detection Methods 0.000 description 2
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical group ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
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- 238000003915 air pollution Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
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- 150000002148 esters Chemical class 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
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- 239000002243 precursor Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to an automatic chemical feeding system of a spraying acid-base washing tower, which comprises an acid-base washing tower, an automatic chemical feeding device connected with the acid-base washing tower, and a PH detector connected with the automatic chemical feeding device, wherein the PH detector is positioned in a circulating water tank; the automatic medicine adding device comprises: the device comprises a data comparator, a relay, a contactor, a metering pump and a dosing barrel; the PH detector is connected with a data comparator, the data comparator is connected with a relay, the relay is connected with a contactor, the contactor is connected with the input end of a metering pump, the input end of the metering pump is connected with a dosing barrel, and the output end of the metering pump is connected with a circulating water tank. The utility model discloses do not need personnel to operate, automatic control to improve the precision and the work efficiency who adds the medicine greatly, ensured the stability of production technology and personnel's safety.
Description
Technical Field
The utility model relates to a waste gas purification handles technical field, concretely relates to spray acid-base scrubbing tower's automatic reagent feeding system.
Background
In recent years, VOCs are becoming the key targets of air pollution prevention and control in China, are extremely harmful, are important precursors causing ozone pollution, and have important contribution to urban haze and photochemical reaction. The stimulation to human body is very large, and the cancer and the malformation can be possibly caused by long-term exposure in the VOCs waste gas. VOCs are generally organic gases with strong volatility, special odor, irritation and toxicity, and some of the VOCs are classified as carcinogens, such as chloroethylene, benzene, polycyclic aromatic hydrocarbons and the like. In industry, there are many industries involved in the discharge of VOCs, and the pollutants are various and complex in composition, and the types of the pollutants include hydrocarbons, ketones, esters, alcohols, phenols, aldehydes, amines, cyanides and the like. Therefore, the treatment technology system is complex, and more than 10 technologies and combination technologies are involved. Generally speaking, the treatment of the VOCs has two basic technologies, one is a recovery technology, and the basic idea of the treatment is to absorb, filter and separate the discharged VOCs, then purify and the like, and recycle the VOCs. Such as adsorption recovery techniques, absorption techniques, membrane techniques, and the like. The other is elimination technology, and the elimination method comprises thermal oxidation, catalytic combustion, biological oxidation and integration technology; the elimination process is mainly to convert organic matter into CO2 and water by chemical or biochemical reaction with heat, catalyst and microbes. Both of these technologies are currently being studied and applied. The method for purifying VOCs by absorption method is a process of treating mixed gas by using liquid absorbent, dissolving one or more gas components in the mixed gas in liquid or making them produce selective chemical reaction with components in absorption liquid to remove one or more gases, so as to control atmospheric pollution. The method is suitable for treating the waste gas containing the VOCs with large gas quantity and medium concentration, has simple process flow and has the defects of low absorption efficiency sometimes, and the absorbent needs to be replaced regularly, thereby being easy to generate secondary pollution.
At present, the existing spray washing tower waste gas treatment equipment is usually directly sprayed by tap water, and has no effect on acid-base waste gas and specific water-insoluble and highly corrosive gas.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an automatic reagent feeding system who sprays acid-base washing detects out the pH value in the circulating water tank among the scrubbing tower through the PH detector to give the data comparator, according to the requirement of handling waste gas technology again, set for high, low control point in the data comparator, the data comparator compares the back with high, low setting value with the PH signal of input, output switch signal relay, relay control contactor, through the switch of contactor control measuring pump, the output quantity of dosing case is controlled to the rethread measuring pump, carries out real-time detection through the continuous pH valve to circulating water tank of circulating pump. Through the utility model discloses an automatic reagent feeding system does not need personnel to operate, automatic control to improve the precision and the work efficiency who adds the medicine greatly, ensured the stability of production technology and personnel's safety.
In order to achieve the above object, the utility model provides a following technical scheme:
an automatic dosing system of a spraying acid-base washing tower comprises the acid-base washing tower, an automatic dosing device connected with the acid-base washing tower and a PH detector connected with the automatic dosing device, wherein the PH detector is positioned in a circulating water tank and a packing layer connected with the acid-base washing tower; the automatic medicine adding device comprises: a controller, a metering pump and a dosing barrel; the controller includes: a data comparator, a relay and a contactor; the PH detector is connected with a data comparator, the data comparator is connected with a relay, the relay is connected with a contactor, the contactor is connected with the input end of a metering pump, the input end of the metering pump is connected with a dosing barrel, and the output end of the metering pump is connected with a circulating water tank.
Preferably, the PH detector is a PH sensor.
Preferably, a stirring rod is arranged in the medicine adding barrel and connected with a stirring motor, and the stirring motor is connected with the electric cabinet.
Preferably, the air inlet of the acid-base washing tower is connected with a centrifugal fan through a pipeline, the centrifugal fan is controlled through an electric cabinet, and the centrifugal fan is connected with a chimney pipeline.
Preferably, the acid-base washing tower is further provided with a visible window.
Through the technical scheme, the utility model provides an automatic reagent feeding system who sprays acid-base washing detects out the pH value in the circulating water tank among the scrubbing tower through the PH detector to give the data comparator, according to the requirement of handling waste gas technology again, set for high, low control point in the data comparator, the data comparator carries out the back with the PH signal of input and high, low setting value relatively, output switch signal relay, relay control contactor, through the switch of contactor control measuring pump, the output quantity of dosing tank is controlled to the rethread measuring pump, carries out real-time detection through the continuous pH valve to circulating water tank of circulating pump. Through the utility model discloses an automatic reagent feeding system does not need personnel to operate, automatic control to improve the precision and the work efficiency who adds the medicine greatly, ensured the stability of production technology and personnel's safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an automatic chemical feeding system of a spray acid-base washing tower provided by the present invention;
fig. 2 is a schematic diagram illustrating an internal structure of the controller according to the present invention;
fig. 3 is a schematic view of an implementation structure of the automatic chemical feeding system of the spray acid-base washing tower provided by the present invention;
an acid-base washing tower 1, a dosing barrel 2, a stirring rod 2-1, a stirring motor 2-2, a metering pump 2-3, a controller 3, a data comparator 3-1, a relay 3-2, a contactor 3-3, a centrifugal fan 4,
A chimney pipe 5, a packing layer 6, a spraying hole 7, a circulating water tank 8, a circulating pump 9, a PH detector 10, an electric control box 11,
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. 1-3, an automatic chemical feeding system for a spraying acid-base washing tower comprises an automatic chemical feeding device connected with an acid-base washing tower 1 and an acid-base washing tower 1, and a PH detector 10 connected with the automatic chemical feeding device, wherein the PH detector 10 is located in a circulating water tank 8, a packing layer 6 connected with the acid-base washing tower 1, a spray header 7 is arranged above the packing layer 6, the spray header 7 is connected with a circulating pump 9 through a pipeline, and the circulating pump 9 is connected with the circulating water tank 8; the automatic medicine adding device comprises: a controller 3, a metering pump 2-3 and a dosing barrel 2; the controller 3 comprises a data comparator 3-1, a relay 3-2 and a contactor 3-3; the PH detector 10 is connected with a data comparator 3-1, the data comparator 3-1 is connected with a relay 3-2, the relay 3-2 is connected with a contactor 3-3, the contactor 3-3 is connected with the input end of a metering pump 2-3, the input end of the metering pump 2-3 is connected with a dosing barrel 2, the output end of the metering pump 2-3 is connected with a circulating water tank 8, whether the data detected by the PH detector 10 exceeds a standard value or not is judged according to the standard value set in the data comparator 3-1, if the data exceeds the standard value, the relay 3-2 is closed, the contactor 3-3 is driven to be closed, the metering pump 2-3 is opened, the dosing amount is output through calculation of the metering pump 2-3, and when the PH value of the PH detection device 10 is within the standard value, relay 3-2 will be closed, does not start measuring pump 2-3, and the dose is added in the circulating water tank, synthesizes liquid pH valve, through 8 external circulating pump 9 of circulating water tank with water through spray hole 7 blowout, deposit to circulating water tank 8 through packing layer 6 in, PH detection device 10 will continue work this moment, if the PH value is too high, will start measuring pump 2-3 through controller 3, measuring pump 2-3 is connected with medicine bucket 2, realizes the automatic reagent feeding, need not special messenger's control, guarantees to add the medicine in time, adds the medicine average reasonable, can not cause the waste, realizes that the pH valve in the acid-base scrubbing tower is stable.
The medicine adding barrel 2 ensures that medicine is uniformly added when the automatic medicine adding device is started through the stirring motor 2-2 and the stirring rod 2-1, and the stirring rod 2-1 can also be realized through other stirring devices such as stirring blades.
Waste gas gets into chimney pipe way 5, take out the import that sprays acid-base scrubbing tower 1 through electric cabinet 11 control centrifugal fan 4, waste gas gets into the tower body after, gaseous entering packing layer 6, there is the spraying hole 7 spun liquid that comes from the top on packing layer 6, and form the one deck liquid film on packing layer 6, when gaseous flow passes through the packing layer space, contact with the packing liquid film, material in the gas fuses into water, the concentration of fluid matter is more and more low in the updraft, liquid on the liquid film flows into circulation tank 8 under the action of gravity, and take out the circulation by circulating pump 9, PH detection device 10 through placing in circulation tank 8 detects the pH valve in the liquid, through automatic reagent feeding device, the pH valve in the liquid neutralizes, with the mesh that reaches the purge gas.
According to the technical scheme, the automatic dosing system for spraying acid-base washing detects the pH value in the circulating water tank in the washing tower through the pH detector, transmits the pH value to the data comparator, sets high and low control points in the data comparator according to the requirement of the waste gas treatment process, outputs switching signals of the relays after the data comparator compares the input pH signal with the high and low set values, controls the contactor through the contactor to control the switching of the metering pump, controls the output quantity of the dosing tank through the metering pump, and continuously detects the pH value of the circulating water tank in real time through the circulating pump. Through the utility model discloses an automatic reagent feeding system does not need personnel to operate, automatic control to improve the precision and the work efficiency who adds the medicine greatly, ensured the stability of production technology and personnel's safety.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An automatic dosing system of a spraying acid-base washing tower is characterized by comprising the acid-base washing tower, an automatic dosing device connected with the acid-base washing tower, and a PH detector connected with the automatic dosing device, wherein the PH detector is positioned in a circulating water tank and a packing layer connected with the acid-base washing tower; the automatic medicine adding device comprises: a controller, a metering pump and a dosing barrel; the controller includes: a data comparator, a relay and a contactor; the PH detector is connected with a data comparator, the data comparator is connected with a relay, the relay is connected with a contactor, the contactor is connected with the input end of a metering pump, the input end of the metering pump is connected with a dosing barrel, and the output end of the metering pump is connected with a circulating water tank.
2. The automatic dosing system of a spray acid-base washing tower of claim 1, wherein the PH detector is an alkalinity-acidity sensor.
3. The automatic dosing system of the spraying acid-base washing tower of claim 1, wherein a stirring rod is arranged in the dosing barrel, the stirring rod is connected with a stirring motor, and the stirring motor is connected with an electric cabinet.
4. The automatic dosing system of the spraying acid-base washing tower according to claim 1, wherein an air inlet of the acid-base washing tower is connected with a centrifugal fan through a pipeline, the centrifugal fan is controlled through an electric cabinet, and the centrifugal fan is connected with a chimney pipeline.
5. The automatic dosing system of a spray acid-base washing tower of claim 1, wherein the acid-base washing tower is further provided with a viewing window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922400633.2U CN211886197U (en) | 2019-12-27 | 2019-12-27 | Automatic dosing system of spraying acid-base washing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922400633.2U CN211886197U (en) | 2019-12-27 | 2019-12-27 | Automatic dosing system of spraying acid-base washing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211886197U true CN211886197U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922400633.2U Expired - Fee Related CN211886197U (en) | 2019-12-27 | 2019-12-27 | Automatic dosing system of spraying acid-base washing tower |
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| CN (1) | CN211886197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445409A (en) * | 2022-08-24 | 2022-12-09 | 无锡市远洲环保科技有限公司 | Acid-base waste gas treatment device with chemical dosage adjustable function |
-
2019
- 2019-12-27 CN CN201922400633.2U patent/CN211886197U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115445409A (en) * | 2022-08-24 | 2022-12-09 | 无锡市远洲环保科技有限公司 | Acid-base waste gas treatment device with chemical dosage adjustable function |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 |