CN216296338U - Vulcanization reactor - Google Patents
Vulcanization reactor Download PDFInfo
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- CN216296338U CN216296338U CN202122951779.3U CN202122951779U CN216296338U CN 216296338 U CN216296338 U CN 216296338U CN 202122951779 U CN202122951779 U CN 202122951779U CN 216296338 U CN216296338 U CN 216296338U
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Abstract
The utility model discloses a vulcanization reactor, which comprises a reaction container, a stirrer and a premixer for premixing waste acid and vulcanization chemicals, wherein the premixer is communicated with the reaction container, the stirrer is arranged in the reaction container, and a turbulence component is also arranged in the reaction container. The utility model has the advantages of high integration level, contribution to improving the reaction efficiency, reducing the total volume of equipment and the like.
Description
Technical Field
The utility model relates to the technical field of waste acid resource recycling equipment, in particular to a vulcanization reactor.
Background
In the industries of smelting or steel and the like, a large amount of waste acid is generated in the process of preparing acid from flue gas, and because the waste acid contains sulfuric acid, a certain amount of heavy metals such as zinc, lead, copper, cadmium, arsenic, antimony, thallium and the like, and nonmetallic substances such as fluorine, chlorine and the like, the waste acid needs to be recycled according to the requirements of circular economy and environmental protection. The prior common technology is that a sulfuration method is adopted to remove heavy metals such as copper and arsenic in waste acid, valuable metals are recovered, and then neutralization and advanced treatment are carried out step by step to obtain gypsum residue, neutralized residue, reuse water and the like.
The existing process technology has mature flow, but the equipment has overlarge volume and single function, needs various types of equipment to be matched for use, has overlong process flow, increases the difficulty of operation and control, has low reaction efficiency and medicament utilization rate, and increases the investment and operation cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the vulcanization reactor which has high integration level, is beneficial to improving the reaction efficiency and reducing the total volume of equipment.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a vulcanization reactor, includes reaction vessel, still includes the agitator and is used for dirty sour premixer that mixes with vulcanization medicament, the premixer with reaction vessel intercommunication, the agitator is located in the reaction vessel, still be equipped with the vortex part in the reaction vessel.
As a further improvement of the above technical solution: the vulcanization reactor also comprises a tubular absorption tower and an absorption mixed flow pump, one end of the tubular absorption tower is communicated with the reaction container, the other end of the tubular absorption tower is provided with a spray head, the inlet of the absorption mixed flow pump is communicated with the reaction container, and the outlet of the absorption mixed flow pump is communicated with the spray head through a spray pipe.
The sulfuration reagent can generate hydrogen sulfide gas under an acidic condition, the unreacted hydrogen sulfide gas enters the tubular absorption tower under the action of a system tail gas fan, the absorption mixed flow pump is started, the sulfuration liquid in the reaction container is pumped to the spray head in the tubular absorption tower through the spray pipe, and small liquid drops are formed through the spray head and react with the unreacted hydrogen sulfide gas. The method has the advantages that the back mixing of the vulcanizing liquid is enhanced, and simultaneously, the dissipated hydrogen sulfide gas is absorbed and recycled, so that the utilization rate of the medicament is improved, the safety of a vulcanization reaction area is ensured, and the continuous operation can be realized.
As a further improvement of the above technical solution: the tubular absorption tower is vertically arranged, the lower end of the tubular absorption tower is communicated with the reaction container, and the spray head is arranged at the upper end of the tubular absorption tower. The tubular absorption tower is arranged vertically, which is beneficial to reducing the space occupied by the equipment.
As a further improvement of the above technical solution: the tubular absorption tower is arranged on the side wall of the reaction container; or, a cover plate is arranged on the reaction container, and the tubular absorption tower is arranged on the cover plate. The tubular absorption tower is arranged on the side wall or the cover plate of the reaction container, so that the installation position is not additionally occupied, and the volume of the equipment is further reduced.
As a further improvement of the above technical solution: and a vulcanizing liquid overflow port is arranged on the upper side of the reaction container, and the vulcanizing liquid overflow port and the tubular absorption tower are oppositely arranged on two sides of the reaction container.
As a further improvement of the above technical solution: the spraying pipe is provided with a spraying valve and is connected with an overhauling branch pipe, and the overhauling branch pipe is provided with a bypass valve. The absorption mixed flow pump can realize multiple purposes, when in normal operation, the spraying valve is opened and the bypass valve is closed, and the vulcanizing liquid is sprayed and the back mixing is strengthened; and opening the bypass valve and closing the spraying valve during maintenance, and transferring the waste acid in the reaction container through the maintenance branch pipe.
As a further improvement of the above technical solution: the spray pipe is also provided with a pressure detection component, such as a pressure sensor and the like, and the pressure detection component is positioned between the spray head and the spray valve. Through pressure detection part detection pressure, guarantee that the pressure of shower nozzle department is 0.5~2.0MPa for the sulphide liquid can form less liquid drop but not atomizing, is favorable to absorbing and recycling the hydrogen sulfide gas of loss, improves the utilization ratio of medicament.
As a further improvement of the above technical solution: the shower nozzle is equipped with the multilayer, and staggers each other between each layer shower nozzle for the less liquid drop of shower nozzle spun sulphide liquid can fill up whole tubular absorption tower, fully contacts, reacts with the hydrogen sulfide gas body of loss.
As a further improvement of the above technical solution: a plurality of mixed flow components are arranged in the premixer, and the mixed flow components are of a Y-shaped structure. The mixed flow component with the Y-shaped structure can increase the stroke of reaction materials, so that the materials are fully contacted, but the pipeline resistance is not excessively increased.
As a further improvement of the above technical solution: the reaction vessel is provided with the lifting lugs, so that the reaction vessel can be conveniently hoisted and transported.
Compared with the prior art, the utility model has the advantages that: the vulcanization reactor disclosed by the utility model integrates multiple functions and multiple components, and is beneficial to reducing the total volume of equipment and the investment and operation cost. When in use, the waste acid and the vulcanizing agent enter a premixer in proportion, are primarily mixed and then enter a vulcanization reaction vessel; the stirrer is started, and materials are fully contacted by using the back mixing effect of the stirring and the turbulence component in the reaction container, so that the vulcanization reaction efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of a first embodiment of a sulfidation reactor of the present invention.
FIG. 2 is a schematic structural view of a second embodiment of the sulfidation reactor of the present invention.
The reference numerals in the figures denote: 1. a reaction vessel; 2. a stirrer; 3. a premixer; 4. a spoiler member; 5. a tubular absorption tower; 6. an absorption mixed flow pump; 7. a shower pipe; 8. a cover plate; 9. a sulfuration liquid overflow port; 10. a spray valve; 11. overhauling the branch pipe; 12. a bypass valve; 13. a pressure detecting member; 14. a flow mixing member; 15. lifting lugs; 16. a spray head; 17. an electric motor.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific examples of the specification.
The utility model discloses a multi-effect integrated vulcanization reactor which comprises a premixer 3, a reaction container 1 (the reaction container 1 preferably adopts a cylinder structure), a tubular absorption tower 5, a stirrer 2 (the stirrer 2 preferably rotates under the drive of a motor on a cover plate 8 so as to realize stirring) and an absorption mixed flow pump 6. A plurality of Y-shaped mixed flow components 14 are arranged in the premixer 3, two feed inlets are arranged at one end of the premixer 3, namely a waste acid feed inlet and a vulcanizing agent feed inlet, and the other end of the premixer is connected with a cylinder of the reaction vessel 1. The cylinder is unevenly or irregularly distributed with a plurality of turbulence components 4 along the inner wall, the top of the cylinder is provided with a cover plate 8, the side edge of the upper part of the cylinder is provided with a sulfuration liquid overflow port 9, the lower part of the cylinder is preferably of a conical or elliptical structure, the lowest part of the cylinder is provided with a sulfuration liquid discharge port, and the sulfuration liquid discharge port is connected with an inlet of an absorption mixed flow pump 6. Referring to fig. 1 and 2, the tubular absorption tower 5 may be disposed on the cover plate 8 or the upper side of the cylinder according to the size of the cylinder used as the reaction vessel 1 and arranged opposite to the sulfuration solution overflow port 9, and a spray head 16 is disposed inside the tubular absorption tower 5, the spray head 16 is preferably a spiral spray head, and the lower end is provided with a wedge-shaped liquid outlet, the opening direction of the wedge-shaped opening is opposite to the sulfuration solution overflow port. The stirrer 2 is driven by a motor 17 provided on the cover plate 8. The inlet of the absorption mixed flow pump 6 is connected with a vulcanizing liquid discharge port, and the outlet is connected with a spray head 16 through a spray pipe 7.
In particular, the sulfiding agent feed port may deliver both a liquid sulfiding agent (e.g., sodium sulfide or sodium hydrosulfide solution) and a gaseous sulfiding agent (e.g., hydrogen sulfide gas).
In specific implementation, a plurality of Y-shaped mixed flow components 14 are arranged in the premixer 3 along the direction of the fluid, and the mixed flow components 14 of the structure have certain coverage on the section of the premixer 3, so that the stroke of reaction materials is increased, the premixing effect is ensured, but the pipeline resistance is not excessively increased.
In specific implementation, the absorption mixed flow pump 6 has multiple functions, when in normal operation, the spraying valve 10 is opened, the bypass valve 12 is closed, and the vulcanizing liquid is sprayed and the back mixing is enhanced; during maintenance, the bypass valve 12 is opened and the spray valve 10 is closed, and the waste acid in the reaction container 1 is transferred through the maintenance branch pipe 11.
When the reactor is specifically implemented, the turbulence component 4 can be a T-shaped plate or other structures with bent parts, which is beneficial to enhancing the contact between reaction materials and improving the reaction efficiency.
In specific implementation, the opening height of the vulcanizing liquid overflow port 9 can ensure the retention time of the waste acid for the vulcanizing reaction to be 10-30 min.
In specific implementation, the rotating speed of the stirrer 2 is 40-90 r/min.
In practical application, the spray heads 16 in the tubular absorption tower 5 are preferably arranged in multiple layers, and the spray heads 15 in each layer are staggered.
In specific implementation, a pressure detection component 13 (such as a pressure sensor) is arranged at an inlet of the spray head 16, so that the pressure at the spray head 16 is ensured to be 0.5-2.0 MPa, and the sulfide liquid can form small liquid drops without atomization.
In practical application, the reaction conditions inside the tubular absorption tower 5 should satisfy: the liquid-gas ratio is 4-8L (sulfide solution)/m3The residence time of gas-liquid contact (after exhaust gas extraction) is 0.2-0.5 seconds.
In specific implementation, the material of the premixer 3 is preferably steel lining PO, the material of the cylinder of the reaction vessel 1 is carbon steel lining glue, the material of the tubular absorption tower 5 and the spray pipe 7 is glass fiber reinforced plastic, the material of the spray head 16 is PP, the material of the stirrer 2 is stainless steel lining glue, and the absorption mixed flow pump 6 is an engineering plastic pump.
When the reactor is specifically implemented, lifting lugs 15 (the lifting lugs 15 are preferably fixed by welding) are arranged on the outer wall of the barrel of the reactor 1, the number of the lifting lugs is 2-4, and the lifting is convenient.
The utility model discloses a vulcanization reactor, which comprises the following operation process steps in specific implementation:
1. one 25m3At a rate of 40m3The flow rate of the/h is that dirty acid is added into the premixer;
2. the concentration of As ions in the waste acid is 8000 mg/L;
3、vulcanizing agent of H2When calculated by S, the adding amount is 150m3/h；
4. The air volume of the system fan acting on the equipment is 2000m3/h, and the flow of the absorption mixed flow pump is 15m3/h；
5. Filtering the overflowing sulfide liquid, and detecting the concentration of As ions in the filtrate to be less than or equal to 5 mg/L.
The vulcanization reactor disclosed by the utility model integrates multiple functions and multiple components, improves the reaction efficiency, increases the utilization rate of the medicament, and reduces the total volume of equipment and the investment and operation cost. Experiments prove that the vulcanization reaction efficiency is greatly improved, the volume of the reactor is reduced by more than 30%, the recovery rate of valuable heavy metals can reach more than 99%, the utilization rate of a vulcanizing agent can reach more than 98%, the investment cost can be reduced by about 20%, and the operation cost can be reduced by about 10%.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the utility model, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A vulcanization reactor comprising a reaction vessel (1), characterized in that: still include agitator (2) and be used for dirty sour premixer (3) that mixes with the vulcanization medicament, premixer (3) with reaction vessel (1) intercommunication, agitator (2) are located in reaction vessel (1), still be equipped with vortex part (4) in reaction vessel (1).
2. The vulcanization reactor of claim 1, wherein: the device is characterized by further comprising a tubular absorption tower (5) and an absorption mixed flow pump (6), wherein one end of the tubular absorption tower (5) is communicated with the reaction container (1), a spray head (16) is arranged at the other end of the tubular absorption tower (5), an inlet of the absorption mixed flow pump (6) is communicated with the reaction container (1), and an outlet of the absorption mixed flow pump (6) is communicated with the spray head (16) through a spray pipe (7).
3. The vulcanization reactor of claim 2, wherein: the tubular absorption tower (5) is vertically arranged, the lower end of the tubular absorption tower (5) is communicated with the reaction container (1), and the spray head (16) is arranged at the upper end of the tubular absorption tower (5).
4. The vulcanization reactor of claim 3, wherein: the tubular absorption tower (5) is arranged on the side wall of the reaction container (1); or a cover plate (8) is arranged on the reaction container (1), and the tubular absorption tower (5) is arranged on the cover plate (8).
5. The vulcanization reactor of claim 4, wherein: the upper side of the reaction container (1) is provided with a vulcanizing liquid overflow port (9), and the vulcanizing liquid overflow port (9) and the tubular absorption tower (5) are oppositely arranged at two sides of the reaction container (1).
6. The vulcanization reactor of claim 2, wherein: the spraying device is characterized in that a spraying valve (10) is arranged on the spraying pipe (7) and is connected with an overhauling branch pipe (11), and a bypass valve (12) is arranged on the overhauling branch pipe (11).
7. The vulcanization reactor of claim 6, wherein: and a pressure detection part (13) is also arranged on the spray pipe (7), and the pressure detection part (13) is positioned between the spray head (16) and the spray valve (10).
8. The vulcanization reactor of claim 2, wherein: the spray heads (16) are provided with a plurality of layers, and the spray heads (16) of each layer are staggered with each other.
9. The vulcanization reactor of any one of claims 1-8, characterized in that: a plurality of mixed flow components (14) are arranged in the premixer (3), and the mixed flow components (14) are in a Y-shaped structure.
10. The vulcanization reactor of any one of claims 1-8, characterized in that: the reaction vessel (1) is provided with a lifting lug (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122951779.3U CN216296338U (en) | 2021-11-29 | 2021-11-29 | Vulcanization reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122951779.3U CN216296338U (en) | 2021-11-29 | 2021-11-29 | Vulcanization reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216296338U true CN216296338U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122951779.3U Active CN216296338U (en) | 2021-11-29 | 2021-11-29 | Vulcanization reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216296338U (en) |
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2021
- 2021-11-29 CN CN202122951779.3U patent/CN216296338U/en active Active
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