CN111661910A - Device for adding hydrochloric acid into silicon-containing wastewater - Google Patents
Device for adding hydrochloric acid into silicon-containing wastewater Download PDFInfo
- Publication number
- CN111661910A CN111661910A CN202010555698.9A CN202010555698A CN111661910A CN 111661910 A CN111661910 A CN 111661910A CN 202010555698 A CN202010555698 A CN 202010555698A CN 111661910 A CN111661910 A CN 111661910A
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- China
- Prior art keywords
- hydrochloric acid
- silicon
- containing wastewater
- hcl
- wastewater according
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 239000002351 wastewater Substances 0.000 title claims abstract description 34
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 23
- 239000010703 silicon Substances 0.000 title claims abstract description 23
- 239000000523 sample Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 24
- 238000005273 aeration Methods 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- -1 aluminum ions Chemical class 0.000 claims description 3
- 210000003454 tympanic membrane Anatomy 0.000 claims description 2
- 238000005070 sampling Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 239000011863 silicon-based powder Substances 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical group [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000012905 visible particle Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention belongs to the technical field of silicon-containing wastewater equipment, and particularly relates to a device for adding hydrochloric acid into silicon-containing wastewater. This device of hydrochloric acid is thrown to siliceous waste water, thereby reached and added hydrochloric acid in the transfer pond, adjust aquatic pH value, make it pH value between 5-6, the mud cake moisture content is 55%, gassing can not take place, and hydrochloric acid is thrown the feeder apparatus and is by the HCL measuring pump, on-line measuring control system, the supporting equipment of sampling pump constitutes, in order to guarantee the pH stability in the pond, still lay the stirring of popping one's breath device in the transfer pond, through on-line measuring PH probe, when PH more than or equal to 6, the HCL measuring pump starts the operation, when PH less than or equal to 6, the HCL measuring pump shut down, detect data transmission to the PH display, control opening and stopping and the medicine volume of HCL measuring pump, the accuracy of quantity has been guaranteed, can conveniently calculate daily quantity, realize automatic control completely, need not personnel's operation.
Description
Technical Field
The invention relates to the technical field of silicon-containing wastewater, in particular to a device for adding hydrochloric acid into silicon-containing wastewater.
Background
The silicon-containing wastewater is actually a wastewater which is difficult to treat, and the treatment modes include a coagulating sedimentation method and a physical method. Compared with a common coagulating sedimentation method, the flocculating and coating sedimentation of large particles in the wastewater is realized by adding corresponding agents, but the wastewater has the characteristic that the precision of silicon powder particles is too fine, the complete removal of particles in the water is difficult to realize by adding a small amount of simple agents, the particles without visible particles in the water can be realized only by adding excessive agents, and the operation cost is higher.
In order to save the operation cost, the prior treatment mode adopts a physical method, and the main equipment comprises a filter press, a sand filter device, a water pump and the like. The treatment process comprises the steps of firstly separating mud and water in the silicon-containing wastewater by using a filter press device, pumping the silicon-containing wastewater into the filter press device through a water pump, separating the wastewater by using a filter plate and a filter medium filter cloth, retaining sludge on the filter cloth, allowing clear liquid to flow from a water tank of the filter plate to a water nozzle, and allowing filter-pressed effluent to enter a sand filtration system to further improve the water quality for recycling.
Because the silicon-containing wastewater has complex characteristics and mainly exists in silicate forms of suspension state, colloid state and dissolved state in water, the practical operation shows that silicon powder and neutral water can generate trace hydrogen under the condition of normal temperature, and can generate high-concentration hydrogen with alkaline water, and the silicon-containing wastewater can not generate gas only under the condition of acidity regulation. In order to avoid hydrogen generation and stable safe operation, citric acid and a coagulant are added into the wastewater before entering a pressure filter, the pH value of the wastewater is adjusted to be between 5.0 and 6.5, and the production capacity of the pressure filter is reduced, the filter cloth is seriously blocked and the production is influenced in the long-time operation process, so a device for adding hydrochloric acid into the silicon-containing wastewater is needed.
Disclosure of Invention
Based on the fact that the existing silicon powder and neutral water can generate trace hydrogen under the normal temperature condition and can generate high-concentration hydrogen with alkaline water, and gas evolution cannot be generated only under the condition of acid regulation; in order to avoid hydrogen generation and stable safe operation, citric acid and a coagulant are added into the wastewater before the wastewater enters a pressure filter, the pH value of the wastewater is adjusted to be between 5.0 and 6.5, and the technical problems that the productivity of the pressure filter is reduced, the filter cloth is seriously blocked and the production is influenced are found in the long-time operation process.
The device for adding hydrochloric acid into silicon-containing wastewater comprises a transfer tank, wherein the interior of the transfer tank is fixedly communicated with a filter press separation device through a water suction pump, a hydrochloric acid adding device is arranged on one side of the transfer tank, the hydrochloric acid adding device comprises a hydrochloric acid barrel, hydrochloric acid is arranged in the hydrochloric acid barrel, an automatic detection device is arranged on the other side of the transfer tank, and the automatic detection device comprises a PH probe.
Preferably, the hydrochloric acid barrel is fixedly connected with HCL metering pumps, the water outlet ends of the two HCL metering pumps are fixedly connected with pressure reducing valves, and one ends of the two pressure reducing valves are fixedly communicated with the interior of the transfer pool through water pipes.
Preferably, the HCL metering pump is electrically connected to a PH display, and an input end of the PH display is electrically connected to an output end of the PH probe.
Preferably, the surface of the transfer pool is fixedly communicated with a drainage pipeline, one end of the drainage pipeline is fixedly connected with a detection ball, and the inner wall of the detection ball is fixedly connected with the surface of the PH probe.
Preferably, the inner wall of the transfer pool is fixedly connected with a sampling pump, and the water outlet end of the sampling pump is fixedly communicated with the surface of the detection ball through a water pipe.
Preferably, the surface of the transfer pool is fixedly communicated with a manual detection ball, and an aeration device is paved in the transfer pool for stirring.
Preferably, the hydrochloric acid removes alumina components from the water, and the reaction equation is as follows:
AL2O3+HCL＝ALCL3+H2↑。
preferably, the hydrochloric acid reacts with elemental aluminum ions, and the equation is as follows:
AL3++HCL＝ALCL3+H2↑。
preferably, the filter press has a feed pressure of 0.5Mpa, a run time of 24H and a tympanic time of 30 minutes.
The beneficial effects of the invention are as follows:
a hydrochloric acid adding device is arranged on one side of a transfer pool, the hydrochloric acid adding device comprises a hydrochloric acid barrel, hydrochloric acid is arranged in the hydrochloric acid barrel, an automatic detection device is arranged on the other side of the transfer pool and comprises a PH probe, so that hydrochloric acid is added into the transfer pool, the PH value of water is regulated to be between 5 and 6, the water content of mud cakes is 55 percent, and no gassing occurs, the hydrochloric acid adding device comprises an HCL metering pump, an online detection control system and a sampling pump matching device, in order to ensure the PH stability in the pool, an aeration device is paved in the transfer pool for stirring, the HCL metering pump is started to operate when the PH is greater than or equal to 6 through online detection of the PH probe, the HCL metering pump stops operating when the PH is less than or equal to 6, detection data is transmitted to a PH display, the starting and stopping of the HCL metering pump and the dosage are controlled, and the dosage accuracy is ensured, the daily dosage can be conveniently calculated, automatic control is completely realized, and personnel operation is not needed.
Drawings
FIG. 1 is a block diagram schematically showing the structure of a device for adding hydrochloric acid to silicon-containing wastewater.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a device for adding hydrochloric acid into silicon-containing wastewater comprises a transfer tank, wherein the interior of the transfer tank is fixedly communicated with a filter press separation device through a water pump, a hydrochloric acid adding device is arranged on one side of the transfer tank, the hydrochloric acid adding device comprises a hydrochloric acid barrel, hydrochloric acid is arranged in the hydrochloric acid barrel, an automatic detection device is arranged on the other side of the transfer tank, and the automatic detection device comprises a PH probe;
HCL metering pumps are fixedly connected inside the hydrochloric acid barrel, water outlet ends of the two HCL metering pumps are fixedly connected with pressure reducing valves, and one ends of the two pressure reducing valves are fixedly communicated with the inside of the transfer pool through water pipes;
the HCL metering pump is electrically connected with a PH display, and the input end of the PH display is electrically connected with the output end of the PH probe;
a drainage pipeline is fixedly communicated with the surface of the transfer pool, one end of the drainage pipeline is fixedly connected with a detection ball, and the inner wall of the detection ball is fixedly connected with the surface of the PH probe;
the inner wall of the transfer pool is fixedly connected with a sampling pump, and the water outlet end of the sampling pump is fixedly communicated with the surface of the detection ball through a water pipe;
the surface of the transfer pool is fixedly communicated with a manual detection ball, and an aeration device is paved in the transfer pool for stirring;
hydrochloric acid removes alumina components in water, and the reaction equation is as follows:
AL2O3+HCL＝ALCL3+H2↑；
hydrochloric acid reacts with elemental aluminum ions, and the equation is as follows:
AL3++HCL＝ALCL3+H2↑；
the feeding pressure of the filter press is 0.5Mpa, the running time is 24H, and the tympanic membrane time is 30 minutes;
a hydrochloric acid adding device is arranged on one side of a transfer pool, the hydrochloric acid adding device comprises a hydrochloric acid barrel, hydrochloric acid is arranged in the hydrochloric acid barrel, an automatic detection device is arranged on the other side of the transfer pool and comprises a PH probe, so that hydrochloric acid is added into the transfer pool, the PH value of water is regulated to be between 5 and 6, the water content of mud cakes is 55 percent, and no gassing occurs, the hydrochloric acid adding device comprises an HCL metering pump, an online detection control system and a sampling pump matching device, in order to ensure the PH stability in the pool, an aeration device is paved in the transfer pool for stirring, the HCL metering pump is started to operate when the PH is greater than or equal to 6 through online detection of the PH probe, the HCL metering pump stops operating when the PH is less than or equal to 6, detection data is transmitted to a PH display, the starting and stopping of the HCL metering pump and the dosage are controlled, and the dosage accuracy is ensured, the daily dosage can be conveniently calculated, automatic control is completely realized, and personnel operation is not needed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides a device for throwing hydrochloric acid into siliceous waste water, includes the transfer pond, its characterized in that: the inside in transfer pond is through the fixed intercommunication of suction pump and pressure filter separator, one side in transfer pond is provided with hydrochloric acid and throws feeder apparatus, hydrochloric acid is thrown feeder apparatus and is included the hydrochloric acid bucket, the inside of hydrochloric acid bucket is provided with hydrochloric acid, the opposite side in transfer pond is provided with automatic checkout device, automatic checkout device is including the PH probe.
2. The device for adding hydrochloric acid into silicon-containing wastewater according to claim 1, characterized in that: the hydrochloric acid barrel is characterized in that HCL metering pumps are fixedly connected inside the hydrochloric acid barrel, pressure reducing valves are fixedly connected at water outlet ends of the two HCL metering pumps, and one ends of the two pressure reducing valves are fixedly communicated with the inside of the transfer pool through water pipes.
3. The device for adding hydrochloric acid into silicon-containing wastewater according to claim 2, characterized in that: the HCL metering pump is electrically connected with a PH display, and the input end of the PH display is electrically connected with the output end of the PH probe.
4. The device for adding hydrochloric acid into silicon-containing wastewater according to claim 1, characterized in that: the surface fixing intercommunication of transfer pond has drainage pipe, drainage pipe's one end fixedly connected with detection ball, the inner wall of detection ball is connected with the fixed surface of PH probe.
5. The device for adding hydrochloric acid into silicon-containing wastewater according to claim 4, characterized in that: the inner wall fixedly connected with sample pump of transfer pond, the play water end of sample pump passes through the fixed surface intercommunication of water pipe and detection ball.
6. The device for adding hydrochloric acid into silicon-containing wastewater according to claim 1, characterized in that: the surface of the transfer pool is fixedly communicated with an artificial detection ball, and an aeration device is paved in the transfer pool for stirring.
7. The device for adding hydrochloric acid into silicon-containing wastewater according to claim 1, characterized in that: the hydrochloric acid removes alumina components in water, and the reaction equation is as follows:
AL2O3+HCL＝ALCL3+H2↑。
8. the device for adding hydrochloric acid into silicon-containing wastewater according to claim 1, characterized in that: the hydrochloric acid reacts with simple aluminum ions, and the formula is as follows:
AL3++HCL＝ALCL3+H2↑。
9. the device for adding hydrochloric acid into silicon-containing wastewater according to claim 1, characterized in that: the feeding pressure of the filter press is 0.5Mpa, the running time is 24H, and the tympanic membrane time is 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010555698.9A CN111661910A (en) | 2020-06-17 | 2020-06-17 | Device for adding hydrochloric acid into silicon-containing wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010555698.9A CN111661910A (en) | 2020-06-17 | 2020-06-17 | Device for adding hydrochloric acid into silicon-containing wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN111661910A true CN111661910A (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010555698.9A Pending CN111661910A (en) | 2020-06-17 | 2020-06-17 | Device for adding hydrochloric acid into silicon-containing wastewater |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800820A (en) * | 2014-12-31 | 2016-07-27 | 北京清大国华环境股份有限公司 | Treatment method and device for silicon containing wastewater |
| CN110217912A (en) * | 2019-06-28 | 2019-09-10 | 内蒙古久科康瑞环保科技有限公司 | The purification method of silicon-containing wastewater |
| CN210736454U (en) * | 2019-06-06 | 2020-06-12 | 北京泷涛环境科技有限公司 | Device for treating high-salt silica sol-containing wastewater |
| CN212740847U (en) * | 2020-06-17 | 2021-03-19 | 内蒙古华凯环保科技有限公司 | Device for adding hydrochloric acid into silicon-containing wastewater |
-
2020
- 2020-06-17 CN CN202010555698.9A patent/CN111661910A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800820A (en) * | 2014-12-31 | 2016-07-27 | 北京清大国华环境股份有限公司 | Treatment method and device for silicon containing wastewater |
| CN210736454U (en) * | 2019-06-06 | 2020-06-12 | 北京泷涛环境科技有限公司 | Device for treating high-salt silica sol-containing wastewater |
| CN110217912A (en) * | 2019-06-28 | 2019-09-10 | 内蒙古久科康瑞环保科技有限公司 | The purification method of silicon-containing wastewater |
| CN212740847U (en) * | 2020-06-17 | 2021-03-19 | 内蒙古华凯环保科技有限公司 | Device for adding hydrochloric acid into silicon-containing wastewater |
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