CN212315572U - Integrated waste liquid treatment equipment for ferrous chloride hydrochloric acid solution - Google Patents
Integrated waste liquid treatment equipment for ferrous chloride hydrochloric acid solution Download PDFInfo
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- CN212315572U CN212315572U CN202022109260.6U CN202022109260U CN212315572U CN 212315572 U CN212315572 U CN 212315572U CN 202022109260 U CN202022109260 U CN 202022109260U CN 212315572 U CN212315572 U CN 212315572U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides a ferrous chloride hydrochloric acid solution's liquid water disposal integration equipment, this equipment from the top down include air-purifying chamber, dry section in proper order, boil burning furnace and feed bin soon, the air-purifying chamber lower extreme pass through flange with dry section is fixed, the lower extreme of dry section pass through flange with it is fixed mutually to boil burning furnace soon, boils soon and forges the furnace bottom and is equipped with the feed bin. The utility model discloses a waste liquid treatment integration equipment of ferrous chloride hydrochloric acid solution directly retrieves oxide and the hydrogen chloride gas that obtains iron from ferrous chloride hydrochloric acid waste liquid, the utility model discloses the product that obtains is the oxide of iron, and its product value is far superior to ferrous chloride crystal to totally closed production can also be realized to integration equipment, and is profitable to the environment, improves the utilization ratio of waste liquid product simultaneously.
Description
Technical Field
The utility model belongs to the technical field of waste liquid treatment, a ferrous chloride hydrochloric acid solution's waste liquid treatment integration equipment is related to.
Background
At present, in the metallurgy and metal processing industry, in order to improve the surface structure of steel or process the surface, the corrosion action of strong acid (hydrochloric acid or sulfuric acid) is often used to chemically clean the surface of steel to remove the oxidized rusty material on the surface of steel, and when the cleaning is performed to a certain extent, the acid concentration in the cleaning solution is reduced, which results in the slow pickling rate, and the acid must be replaced by new acid to maintain a proper pickling rate. The discharge of the waste liquid generated in the pickling process forms the waste liquid containing high-concentration metal ions and residual acid, and the discharge amount of the waste liquid is increased along with the increase of the yield of steel products. The waste liquid has been managed as a hazardous waste in various countries due to its severe corrosiveness.
In the prior art, a ferrous chloride hydrochloric acid solution generally adopts a steam indirect heating and negative pressure evaporation concentration process, and gas generated by evaporation is condensed into dilute hydrochloric acid by a condenser and returns to an acid washing workshop for reuse; after the waste acid liquid is evaporated and concentrated to ensure that the ferrous chloride reaches a certain concentration, the concentrated solution is cooled to ensure that the ferrous chloride is separated out in a crystallization mode, and then the crystals of the ferrous chloride are obtained through centrifugal separation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a ferrous chloride hydrochloric acid solution's waste liquid treatment integration equipment. The utility model discloses an integration equipment can be followed and directly retrieved oxide and the hydrogen chloride gas body that obtains iron in the waste liquid of ferrous chloride hydrochloric acid solution, the utility model discloses the product that obtains is the oxide of iron, and its product value is far superior to ferrous chloride crystal, the utility model discloses can realize totally closed production, be good to the environment, improve the utilization ratio of waste liquid product simultaneously.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the integrated equipment for treating the waste liquid of the ferrous chloride hydrochloric acid solution sequentially comprises an air purifying chamber, a drying section, a rotary boiling calcining furnace and a storage bin from top to bottom, wherein the lower end of the air purifying chamber is fixed with the drying section through a connecting flange, the lower end of the drying section is fixed with the rotary boiling calcining furnace through a connecting flange, and the storage bin is arranged at the bottom end of the rotary boiling calcining furnace.
Further, the inside bottom of air-purifying chamber is equipped with the card, is equipped with a plurality of air vents on the card, corresponds the position on every air vent and installs filter bag and skeleton subassembly, and filter bag and skeleton subassembly set up in the air-purifying chamber, installs a plurality of gas bags in the outside of air-purifying chamber, is equipped with the pulse valve on every gas bag, and gas bag bottom and the jetting pipe intercommunication that sets up in the air-purifying chamber inside, the jetting pipe in addition with the upper end of the filter bag of filter bag and skeleton subassembly is linked together, and the pulse valve passes through the control of pulse control appearance, carries out bag-by-bag jetting to the filter bag of filter bag and skeleton subassembly, installs the apron in the top of air-purifying chamber, seals air-purifying chamber top opening, and the bottom of air-purifying chamber is equipped with flange for be.
Furthermore, the end of giving vent to anger of air-purifying chamber is connected with the draught fan entry through the pipeline, and the draught fan export communicates with tail gas clean-up system through the pipeline, and the tail gas after the purification can directly be retrieved.
Further, the dry section includes that first cylinder and high pressure spray the mechanism, is equipped with flange respectively at the upper and lower both ends of first cylinder, is equipped with the high pressure in first cylinder and sprays the mechanism, the high pressure sprays the mechanism and comprises a plurality of ring pipes that set up with one heart, and each ring pipe layering is fixed on the inner wall of first cylinder, and it has a plurality of holes that spray to equally divide cloth on every ring pipe, and each ring pipe is connected with the stuff pump through the inlet pipe respectively.
Further, the first cylinder is a two-layer steel cylinder, and a heat insulation material layer is arranged on the inner wall of the two-layer steel cylinder.
Furthermore, the rotary boiling calciner comprises a second cylinder, 6-10 heat source air inlet channels are arranged on the periphery of the second cylinder, a temperature measuring and pressure measuring device is arranged on the second cylinder, a connecting flange is arranged at the upper end of the second cylinder, and the bottom end of the second cylinder is fixed on the ground through a support.
Further, the second cylinder is a steel cylinder, and a fireproof temperature-resistant material layer is arranged on the inner wall of the steel cylinder.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a waste liquid treatment equipment is equipment as an organic whole, wherein spray mechanism, dry section, boil soon and forge burning furnace and clean gas chamber in including the high pressure, through flange lug connection between the equipment of each working segment, need not auxiliary assembly such as pipeline, can improve heat energy availability factor, improve the heat utilization efficiency, reduced the consumption of power of equipment, reduce equipment investment cost simultaneously, reduce equipment area. The integrated equipment can also realize totally-enclosed production, is beneficial to the environment and simultaneously improves the utilization rate of waste liquid products.
Drawings
FIG. 1 is a schematic structural view of the waste liquid treatment integrated equipment of the present invention;
FIG. 2 is a schematic structural view of a high pressure spray mechanism;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
in the figure: 1-air purification chamber; 1-1-gas outlet end; 2-a drying section; 2-1-a first cylinder; 2-2-high pressure spraying mechanism; 2-2-1-ring tube; 2-2-2-spraying holes; 2-2-3-feeding pipe; 3-rotary boiling calciner; 3-1-a second cylinder; 3-2-heat source air inlet channel; 4-a storage bin; 5-pattern plate; 6-filter bag and skeleton assembly; 7-air bag; 8-a pulse valve; 9-blowing pipe; 10-a cover plate; 11-a draught fan; 12-a tail gas purification system; 13-a fixed frame; 14-a guardrail; 15-bracket.
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.
Examples
Referring to fig. 1, the waste liquid treatment integrated equipment for the ferrous chloride hydrochloric acid solution sequentially comprises an air purifying chamber 1, a drying section 2, a rotary boiling calciner 3 and a storage bin 4 from top to bottom, wherein the lower end of the air purifying chamber 1 is fixed with the drying section 2 through a connecting flange, the lower end of the drying section 2 is fixed with the rotary boiling calciner 3 through a connecting flange, and the storage bin 4 is arranged at the bottom end of the rotary boiling calciner 3.
The inside bottom of air-purifying chamber 1 is equipped with card 5, is equipped with a plurality of air vents on card 5, corresponds the position on every air vent and installs filter bag and skeleton subassembly 6, and filter bag and skeleton subassembly 6 set up in air-purifying chamber 1, installs a plurality of gas bags 7 in air-purifying chamber 1's the outside, is equipped with pulse valve 8 on every gas bag 7, and 7 bottoms of gas bags with set up the inside jetting pipe 9 intercommunication in air-purifying chamber, jetting pipe 9 in addition with the upper end of the filter bag of filter bag and skeleton subassembly 6 is linked together, and pulse valve 8 is controlled through the pulse control appearance, carries out bag-by-bag jetting to the filter bag of filter bag and skeleton subassembly 6, installs apron 10 in air-purifying chamber 1's top, seals air-purifying chamber 1 top opening, and air-purifying chamber 1's bottom is equipped with flange for be connected with drying section 2.
The air outlet end 1-1 of the air purifying chamber 1 is connected with an inlet of an induced draft fan 11 through a pipeline, an outlet of the induced draft fan 11 is communicated with a tail gas purification system 12 through a pipeline, and purified tail gas can be directly recovered.
The drying section 2 comprises a first cylinder 2-1 and a high-pressure spraying mechanism 2-2, the upper end and the lower end of the first cylinder 2-1 are respectively provided with a connecting flange, the first cylinder 2-1 is internally provided with the high-pressure spraying mechanism 2-2, referring to fig. 2, the high-pressure spraying mechanism 2-2 consists of a plurality of concentric circular pipes 2-2-1, each circular pipe 2-2-1 is fixed on the inner wall of the first cylinder 2-1 in a layered manner, each circular pipe 2-2-1 can be fixed with the inner wall of the first cylinder 2-1 through 2 symmetrical inclined fixing frames 13, the diameter of each circular pipe is gradually increased from the right to the top, and a plurality of spraying holes 2-2-2 are uniformly distributed on each circular pipe 2-2-1, each ring pipe 2-2-1 is respectively connected with a slurry pump through a feeding pipe 2-2-3, the slurry pump conveys the waste liquid slurry of the ferrous chloride hydrochloric acid solution to each ring pipe 2-2-1 of the high-pressure spraying mechanism 2-2, and the waste liquid slurry enters the drying section 2 from a plurality of spraying holes 2-2-2.
The first cylinder 2-1 is a two-layer steel cylinder, and a heat insulation material layer is arranged on the inner wall of the two-layer steel cylinder.
An air inlet 2-1-1 is arranged at the lower end of the first cylinder body 2-1, and an air distribution valve and a temperature sensor are arranged at the air inlet 2-1-1.
Referring to fig. 3, the rotary boiling calciner 3 comprises a second cylinder 3-1, 6-10 heat source air inlet channels 3-2 are arranged on the periphery of the second cylinder 3-1 and used for being connected with a heat source providing device and providing heat sources for the drying section 2 and the rotary boiling calciner 3, a temperature and pressure measuring device is arranged on the second cylinder 3-1 and used for detecting the temperature and pressure in the rotary boiling calciner 3, so that the calcination temperature is controlled to be 650-1150 ℃, a connecting flange is arranged at the upper end of the second cylinder 3-1, and the bottom end of the second cylinder 3-1 is fixed on the ground through a support 15.
The second cylinder 3-1 is a steel cylinder, and a fireproof temperature-resistant material layer is arranged on the inner wall of the steel cylinder.
The filter bags in the filter bag and framework assembly 6 are high-temperature-resistant steel wire filter bags, and the framework is made of stainless steel materials.
High-temperature-resistant sealing gaskets are arranged at the joints of the connecting flanges among the air purifying chamber 1, the drying section 2 and the rotary boiling calcining furnace 3, so that the connection sealing performance is ensured.
Above the outside of the air purification chamber 1 there is also mounted a guardrail 14.
The utility model discloses an integration equipment realizes the processing method to the waste liquid of ferrous chloride hydrochloric acid solution, specifically realizes the step as follows:
enabling the waste liquid slurry of the ferrous chloride hydrochloric acid solution to enter a high-pressure spraying mechanism 2-2 through the action of a slurry pump, and drying the waste liquid slurry of the ferrous chloride hydrochloric acid solution in a drying section 2 through high-pressure spraying to form a powdery material; the drying temperature in the drying section 2 is controlled to be 450-600 ℃, the drying time is 3-5 s, and the drying is instantly realized; when the temperature sensor at the air inlet 2-1-1 of the first cylinder 2-1 of the drying section detects that the temperature in the drying section exceeds 450-600 ℃, the air distribution valve is opened to cool the drying section.
The powdery material directly enters a rotary boiling calciner 3 for calcination, and the calcination temperature is controlled between 650 ℃ and 1150 ℃. The iron oxide material generated after calcination enters a cooling system through a bin 4. In actual production, the corresponding calcination temperature can be set according to the specific required iron oxide type.
Meanwhile, the flue gas generated in the drying and calcining processes carries the materials to move upwards along the rotary boiling calcining furnace 3, the drying section 2 and the high-pressure spraying mechanism 2-2 under the action of the induced draft fan 11, the materials enter the air purifying chamber 1 for filtering, the filtered flue gas enters the tail gas purifying system 12, the purified gas can be directly recovered, the filtered materials are blown in the air purifying chamber 1 through the blowing pipe 9 to be settled to the high-temperature drying section 2, and the filtered materials are mixed with the slurry pumped into the slurry pump again to be dried and calcined together.
The utility model discloses an integration equipment can improve heat utilization rate greatly, makes heat utilization rate reach more than 85%. The integrated equipment can reduce the heat loss in the connection process of all devices of the split equipment.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (7)
1. The integrated equipment for treating the waste liquid of the ferrous chloride hydrochloric acid solution is characterized by comprising an air purifying chamber, a drying section, a rotary boiling calcining furnace and a storage bin from top to bottom in sequence, wherein the lower end of the air purifying chamber is fixed with the drying section through a connecting flange, the lower end of the drying section is fixed with the rotary boiling calcining furnace through a connecting flange, and the storage bin is arranged at the bottom end of the rotary boiling calcining furnace.
2. The integrated apparatus for treating waste liquid of ferrous chloride hydrochloric acid solution as claimed in claim 1, wherein a flower plate is provided at the bottom end inside the air purification chamber, a plurality of vent holes are provided on the flower plate, a filter bag and a skeleton assembly are provided at corresponding positions on each vent hole, the filter bag and the skeleton assembly are provided in the air purification chamber, a plurality of air bags are provided at the outer side of the air purification chamber, each air bag is provided with a pulse valve, the bottom end of the air bag is communicated with an injection tube provided inside the air purification chamber, the injection tube is further communicated with the filter bag and the upper end of the filter bag of the skeleton assembly, the pulse valve is controlled by a pulse controller to inject the filter bag of the filter bag and the filter bag of the skeleton assembly one by one, a cover plate is provided above the air purification chamber to close the opening above the air purification chamber, and a connecting flange is provided at the bottom of.
3. The integrated equipment for treating the waste liquid of the ferrous chloride hydrochloric acid solution according to claim 1, wherein the outlet end of the air purifying chamber is connected with the inlet of an induced draft fan through a pipeline, the outlet of the induced draft fan is communicated with a tail gas purifying system through a pipeline, and the purified tail gas can be directly recovered.
4. The integrated apparatus for treating waste liquid of ferrous chloride hydrochloric acid solution according to claim 1, wherein the drying section comprises a first cylinder and a high pressure spraying mechanism, the upper and lower ends of the first cylinder are respectively provided with a connecting flange, the first cylinder is internally provided with the high pressure spraying mechanism, the high pressure spraying mechanism comprises a plurality of concentric circular tubes, each circular tube is fixed on the inner wall of the first cylinder in a layered manner, each circular tube is equally distributed with a plurality of spraying holes, and each circular tube is respectively connected with a slurry pump through a feeding pipe.
5. The integrated apparatus for treating waste liquid of ferrous chloride hydrochloric acid solution according to claim 4, wherein the first cylinder is a two-layer steel cylinder, and a thermal insulation material layer is disposed on the inner wall of the two-layer steel cylinder.
6. The integrated equipment for treating the waste liquid of the ferrous chloride hydrochloric acid solution as claimed in claim 1, wherein the rotary boiling calciner comprises a second cylinder, 6-10 heat source air inlet channels are arranged on the periphery of the second cylinder, a temperature and pressure measuring device is arranged on the second cylinder, a connecting flange is arranged at the upper end of the second cylinder, and the bottom end of the second cylinder is fixed on the ground through a bracket.
7. The integrated apparatus for treating waste liquid of ferrous chloride hydrochloric acid solution according to claim 6, wherein the second cylinder is a steel cylinder, and a refractory temperature-resistant material layer is disposed on the inner wall of the steel cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022109260.6U CN212315572U (en) | 2020-09-23 | 2020-09-23 | Integrated waste liquid treatment equipment for ferrous chloride hydrochloric acid solution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022109260.6U CN212315572U (en) | 2020-09-23 | 2020-09-23 | Integrated waste liquid treatment equipment for ferrous chloride hydrochloric acid solution |
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| CN212315572U true CN212315572U (en) | 2021-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960473A (en) * | 2020-09-23 | 2020-11-20 | 沈阳宇能机械工程科技有限公司 | Integrated device and method for treating waste liquid of ferrous chloride hydrochloric acid solution |
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2020
- 2020-09-23 CN CN202022109260.6U patent/CN212315572U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111960473A (en) * | 2020-09-23 | 2020-11-20 | 沈阳宇能机械工程科技有限公司 | Integrated device and method for treating waste liquid of ferrous chloride hydrochloric acid solution |
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