CN210332612U - Continuous solid-liquid reaction system for realizing waste gas recovery - Google Patents
Continuous solid-liquid reaction system for realizing waste gas recovery Download PDFInfo
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- CN210332612U CN210332612U CN201920415865.2U CN201920415865U CN210332612U CN 210332612 U CN210332612 U CN 210332612U CN 201920415865 U CN201920415865 U CN 201920415865U CN 210332612 U CN210332612 U CN 210332612U
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- 239000007788 liquid Substances 0.000 title claims abstract description 241
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 67
- 239000002912 waste gas Substances 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 48
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 38
- 239000007790 solid phase Substances 0.000 claims abstract description 38
- 238000003756 stirring Methods 0.000 claims abstract description 27
- 239000000725 suspension Substances 0.000 claims abstract description 24
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims description 17
- 239000007791 liquid phase Substances 0.000 claims description 16
- 239000013589 supplement Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
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- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
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- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 125000001967 indiganyl group Chemical group [H][In]([H])[*] 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
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- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
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- 235000002538 magnesium citrate Nutrition 0.000 description 1
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- PLSARIKBYIPYPF-UHFFFAOYSA-H trimagnesium dicitrate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O PLSARIKBYIPYPF-UHFFFAOYSA-H 0.000 description 1
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Abstract
The utility model relates to a continuous solid-liquid reaction system for realizing waste gas recovery, which comprises a reactor, a solid-liquid mixer, a solid-liquid separator and a delivery pump, wherein the part above the reaction liquid level in the reactor is used as a gas collection chamber, the top of the reactor is provided with an exhaust pipe, and the exhaust pipe is communicated with the gas collection chamber; the reactor is provided with a liquid raw material liquid inlet pipe and a suspension liquid inlet pipe, the solid-liquid mixer is used for stirring a solid phase raw material and a solvent into a suspension, the solid-liquid mixer is communicated with the reactor through the suspension liquid inlet pipe, and the suspension liquid inlet pipe and the liquid raw material liquid inlet pipe extend into the reactor below the reaction liquid level; the reactor is provided with at least one liquid outlet pipeline and a circulating pipeline. Solid phase raw materials are stirred into turbid liquid, the turbid liquid is fed into the reactor through a pipeline, the reactor does not need to be opened temporarily in the reaction process because of the supplement of the solid phase raw materials, therefore, the gas leakage in the reactor is avoided, the continuous solid-liquid reaction and the continuous gas collection are realized without stopping and adding materials.
Description
Technical Field
The utility model relates to a solid-liquid reaction device, concretely relates to can realize preventing excessive solid-liquid reaction system to reaction exhaust product recovery.
Background
In the existing production of solid-liquid phase chemicals, especially in the displacement reaction of acid, alkali and salt and the production of chemical product technology of double decomposition reaction, as most of chemical raw materials are acid, alkali and salt, and have certain corrosivity, most of the production raw materials are solid, liquid and solid-liquid combination, and the reaction condition is normal pressure, most of the production technology adopts a simple batch intermittent reaction technology, most of production equipment is a normal-pressure enamel reaction kettle, and batch feeding must be matched with frequent start and stop.
The chemical reaction mostly involves H2、CO2、H2S and other waste gases are generated, and due to the limitation of the intermittent open-type production process conditions, the gases cannot be completely and effectively isolated, and most of the gases are subjected to harmless treatment or directly discharged; in the generation of toxic and harmful gases such as H2In the S reaction, H2S tail gas needs to be pumped out for micro negative pressure absorption and cracking treatment, and if the negative pressure device fails, H2S can be released into the field operation environment, which brings harm to field personnel and has the danger of combustion and explosion. In the generation of H2In the reaction of gases, due to H2The gas is flammable and explosive, the lower explosion limit is low, the explosion range is wide, if the gas cannot be effectively collected, and the leakage risk is increased by frequently opening and stopping the vehicle, so that great potential safety hazards exist. In the production of CO2In the reaction of gases, a large amount of CO2The venting of the gas to the atmosphere increases the environmental pressure.
And H in the exhaust gas species2The combustion heat value of the fuel is very high, and the fuel is high-quality and clean chemical raw materials and fuel, namely CO2It is a widely used chemical raw material, and can be used as fire extinguishing agent, gas protecting agent, crop gas fertilizer and refrigerant. The gas-phase by-products are recycled, so that the environmental pressure and the potential safety hazard are relieved, and the by-products can be recycled.
The existing intermittent open production process is that solid and liquid chemical raw materials are directly fed through a feeding port (or a manhole), chemical reaction occurs when the solid and liquid raw materials are contacted, waste gas generated by the reaction is guided to be discharged, and part of gas is discharged to a production workshop in an unorganized manner.
The existing production process device has the following defects:
(1) frequent parking is performed, and each time the following steps are performed: the procedures of starting, feeding, reacting, discharging and the like increase the complexity of the operation. The operation has great dependence on manual operation and great labor intensity of workers.
(2) The single kettle intermittent production has low automation degree, great production control difficulty and fluctuation of product quality.
(3) Frequent stopping leads to gas leakage generated by reaction, and potential safety hazards exist.
(4) The batch feeding has the advantages of violent initial reaction, slow subsequent reaction, variable reaction rate and increased control difficulty.
(5) Gas phase by-products such as CO produced during the production process2、H2And the like cannot be recycled and can only be discharged as harmless waste gas. Resource waste is caused, and environmental protection pressure is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a solid-liquid reaction system is provided to above-mentioned prior art, let the reaction go on under sealed condition all the time, the serialization operation need not the parking reinforced, to the gas in the reaction product in time retrieve, do not have to leak, do not have the emission.
The utility model provides a technical scheme that above-mentioned problem adopted does: a continuous solid-liquid reaction system for realizing waste gas recovery comprises a reactor, a solid-liquid mixer, a solid-liquid separator and a delivery pump, wherein a gas collection chamber is arranged above the reaction liquid level in the reactor; the reactor is provided with a liquid raw material liquid inlet pipe and a suspension liquid inlet pipe, a solid-liquid mixer is used for stirring a solid phase raw material and a solvent into a suspension or forming a mixed liquid with the solid phase raw material by using the solvent as a carrier, the solid-liquid mixer is communicated with the reactor through the suspension liquid inlet pipe, and the suspension liquid inlet pipe and the liquid raw material liquid inlet pipe extend into the reactor below the reaction liquid level; the reactor is at least provided with a liquid outlet pipeline, the liquid outlet pipeline is provided with the solid-liquid separator, and a solid phase obtained by separating reaction liquid by the solid-liquid separator returns to the reactor through the pipeline; the reactor is provided with a circulating pipeline, the conveying pump is arranged on the circulating pipeline, and the reaction liquid continuously circulates inside and outside the reactor through the circulating pipeline.
In order to facilitate the continuous collection of gas generated by the solid-liquid reaction in the reactor, the solid-phase reactant (raw material) is prepared into suspension, the suspension is fed into the reactor through a pipeline, and the reactor does not need to be opened temporarily in the reaction process because of the supplement of the solid-phase raw material, so that the gas leakage in the reactor is also avoided.
Preferably, the solid-liquid mixer is configured to stir the solid-phase raw material and the solvent into a suspension by a built-in stirring structure, that is, the solid-phase reactant is suspended in the solvent, and the solvent in the present application refers to a solvent that does not participate in the reaction, or a mother liquor discharged from the reaction system may be selected, and the mother liquor should not contain the liquid raw material. Of course, the solid-liquid mixer may be a mixing kettle with stirring, or may be a jet-suction mixer or a simple liquid flushing arrangement.
Preferably, the gas-liquid separator is arranged on the exhaust pipe, reaction liquid is inevitably contained in gas in the reactor, and in order to improve gas collection purity, carried liquid needs to be removed, and the gas is purified by the gas-liquid separator.
In order to promote the solid-liquid reaction, the solid-phase raw material and the liquid raw material are sufficiently contacted. The bottom of the reactor is further arranged to be inverted cone-shaped, a hydraulic ejector is arranged at the bottom of the cone, and the hydraulic ejector is arranged at a position where a circulating pipeline is connected with a liquid return port of the reactor; the solid phase raw materials deposited in the reaction liquid are converged to the conical bottom as much as possible, meanwhile, the solid phase obtained by the separation of the solid-liquid separator on the liquid outlet pipeline also returns to the conical bottom, and the circulating liquid is sprayed to the solid phase raw materials from bottom to top by the hydraulic ejector, so that the solid phase raw materials are dispersed into the reaction liquid main body again for carrying out the reaction.
The liquid outlet pipe can also be provided with a branch connected to the circulating pipeline, and the liquid phase separated by the solid-liquid separator is returned to the reactor as circulating liquid through the circulating pipeline; the liquid outlet pipeline forms a liquid seal pipeline on the pipeline behind the solid-liquid separator, so that the phenomenon that gas leaks through the liquid outlet pipeline due to the fact that the liquid level of reaction liquid in the reactor is lowered to expose out of a connecting port of the liquid outlet pipeline and the reactor is avoided.
Preferably, a guide shell is arranged in the reactor, the hydraulic ejector is positioned below the shell opening of the guide shell and meets the requirement that the ejection direction of the hydraulic ejector faces to the middle of the guide shell from bottom to top, and circulation is formed inside and outside the guide shell.
The utility model provides a solid-liquid mixer is including the casing that can outwards open or close, the draft tube, take the (mixing) shaft of stirring leaf, the rotatory agitator motor of drive (mixing) shaft, the unsettled setting of draft tube is inside the casing, the (mixing) shaft of taking the stirring leaf stretches into in the middle of the draft tube, the feed liquor end and the inside intercommunication of casing of turbid liquid feed liquor pipe, solvent and solid starting material form turbid liquid under the stirring effect of (mixing) shaft in solid-liquid mixer, the draft tube of setting is favorable to forming the inner loop and help forms turbid liquid fast.
Compared with the prior art, the utility model has the advantages of:
1. the continuous production does not need frequent start and stop, simplifies the production operation, is convenient for automatic control, has constant and mild reaction conditions, and controls the reaction rate and the product quality. The error brought in the operation is reduced, and the production accident is reduced. The operation and labor intensity of workers are reduced.
2. The gas generated by the reaction is reliably isolated at the top of the reactor by the reaction liquid and can only be collected through a top gas phase outlet. In the reaction of generating H2 and the like with flammable and explosive gases, the gases are isolated in a safe and reliable state, and the production risk is reduced.
3. The waste gas generated by the reaction can be safely and reliably recycled, and can be reused as a byproduct after further treatment.
Drawings
FIG. 1 is a schematic structural view of a continuous solid-liquid reaction system according to example 1 of the present invention;
FIG. 2 is a schematic structural view of a continuous solid-liquid reaction system according to example 2 of the present invention;
FIG. 3 is a schematic structural view of a continuous solid-liquid reaction system according to example 3 of the present invention;
FIG. 4 is a schematic structural view of a continuous solid-liquid reaction system according to example 4 of the present invention;
FIG. 5 is a schematic structural view of a continuous solid-liquid reaction system with mechanical stirring according to example 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
As shown in figure 1, the continuous solid-liquid reaction system for realizing waste gas recovery comprises a reactor 2, a solid-liquid mixer 1, a solid-liquid separator 4 and a delivery pump 6, wherein a gas collection chamber is arranged above the reaction liquid level in the reactor 2, and an exhaust pipe is arranged at the top of the reactor 2 and communicated with the gas collection chamber. The reactor is provided with a liquid raw material liquid inlet pipe and a turbid liquid inlet pipe, and the two liquid inlet pipes extend into the reactor below the reaction liquid level.
The solid-liquid mixer 1 is used for stirring a solid-phase raw material and a solvent into a suspension, the solid-liquid mixer 1 is communicated with the reactor 2 through a suspension liquid inlet pipe, and the suspension is continuously conveyed to the position below the liquid level of the reactor.
The reactor 2 is provided with a liquid outlet pipeline, a solid-liquid separator 4 is arranged on the liquid outlet pipeline, and a solid phase obtained by separating reaction liquid by the solid-liquid separator 4 returns to the reactor 2 through the pipeline to continuously participate in the reaction; a liquid seal pipeline 5 is formed on the pipeline of the liquid outlet pipeline behind the solid-liquid separator 4, and the liquid phase obtained by separation of the solid-liquid separator 4 is used as a product solution to be conveyed to the next procedure. The reactor 2 is provided with a circulating pipeline, a delivery pump 6 is arranged on the circulating pipeline, and the reaction liquid continuously circulates inside and outside the reactor through the circulating pipeline.
The solid-liquid mixer 1 comprises a shell 101 capable of being opened or closed outwards, a guide shell 102, a stirring shaft 103 with stirring blades and a stirring motor for driving the stirring shaft 103 to rotate, the guide shell is arranged in the shell 101 in a suspension mode, the stirring shaft 103 with the stirring blades extends into the middle of the guide shell 102, and the liquid inlet end of a suspension liquid inlet pipe is communicated with the inside of the shell.
In this embodiment, can also set up mechanical stirring structure in reactor 2, in the installation of mechanical stirring structure, should make with reactor 2's seal structure, prevent to lead to the reactor leakproofness variation because of installation mechanical stirring structure to the risk that reaction gas leaked appears. See fig. 5. As can be seen from fig. 5, the solid-liquid mixer of the present application may use a liquid carrier to prepare a mixed solution from the solid raw material without a stirring shaft, and then introduce the mixed solution into the reactor 2 for reaction.
Example 2
As shown in fig. 2, this example relates to the reaction of iron powder and hydrochloric acid, the gas is hydrogen, and the iron powder is stirred into a suspension by the ferrous chloride mother liquor formed by the reaction, so as to realize continuous liquid feeding. The main difference between this solid-liquid reaction system and the system of example 1 is that:
in this embodiment, a gas-liquid separator is provided in the exhaust pipe line, and water is used as the washing liquid to wash the gas.
In the embodiment, a guide shell is arranged in the reactor, and internal circulation is formed under the action of the guide shell.
The bottom of the reactor 2 is in an inverted cone shape, a hydraulic ejector 3 is arranged at the bottom of the cone, and the hydraulic ejector 3 is arranged at the position of a liquid return port of the circulating pipeline connected with the reactor. The hydraulic ejector can be a commercially available hydraulic ejector.
The circulating pipeline is provided with a solid-liquid separator 4, the solid phase separated by the solid-liquid separator 4 returns to the conical bottom, the circulating liquid separated by the solid-liquid separator 4 flows into the middle of the guide shell from bottom to top through the hydraulic ejector 3, and the solid phase at the conical bottom is carried with heavy water and dispersed to the reactor main body in the spraying process.
Example 3
As shown in fig. 3, this example is designed to implement a solid-liquid reaction between a magnesium carbonate solid and citric acid, and the gas is carbon dioxide. The solid-liquid reaction system is different from the embodiment 2 in that the solid-liquid reaction system further comprises a second solid-liquid mixer, and the second solid-liquid mixer is used for pre-dissolving the citric acid crystal by magnesium citrate crystallization mother liquor generated by reaction to form a liquid reaction solution, and then feeding the liquid reaction solution into the reactor through a liquid raw material inlet pipe. The reaction system can realize continuous solid-liquid reaction with solid raw materials.
Example 4
As shown in fig. 4, this embodiment relates to the reaction between sulfuric acid and iron powder, the gas is hydrogen, and the iron powder is made into a suspension by using ferrous sulfate mother liquor, so as to realize continuous feeding of the iron powder. The continuous solid-liquid reaction system of the embodiment comprises two reactors 2, a first reactor and a second reactor, wherein the reaction liquid level of the first reactor is lower than that of the second reactor, and a reaction liquid overflow pipe 8 is arranged between the first reactor and the second reactor. During the reaction process, the reaction liquid in the second reactor can overflow into the first reactor.
The reaction liquid in the first and second reactors 2 is used as a gas collection chamber, the top parts of the first and second reactors are provided with exhaust pipes, and the exhaust pipes are communicated with the gas collection chamber. The first reactor is provided with a liquid raw material liquid inlet pipe for continuous feeding of concentrated sulfuric acid, and the liquid raw material liquid inlet pipe extends below the liquid level of the reaction liquid. The second reactor is provided with a solid-liquid mixer 1, the solid-liquid mixer is used for stirring iron powder and ferrous sulfate mother liquor into turbid liquid, the solid-liquid mixer 2 is communicated with the second reactor through a turbid liquid inlet pipe, and the turbid liquid inlet pipe extends below the liquid level of reaction liquid of the second reactor.
The first reactor is provided with a first liquid outlet pipeline and a first circulating pipeline, the first liquid outlet pipeline and the first circulating pipeline are both provided with a solid-liquid separator 4, a solid phase obtained by separating the first liquid outlet pipeline by the solid-liquid separator 4 is sent into the first reactor by the pipeline, and the first liquid outlet pipeline forms a liquid seal pipeline 5 on the pipeline behind the solid-liquid separator. The liquid phase and the solid phase obtained by the separation of the solid-liquid separator 4 on the first circulating pipeline are respectively connected into the first reactor in a circulating way, and the first circulating pipeline is provided with a delivery pump 6. The second reactor is provided with a second liquid outlet pipeline and a second circulating pipeline, the second liquid outlet pipeline and the second circulating pipeline are both provided with a solid-liquid separator 4, and the second liquid outlet pipeline forms a liquid seal pipeline 5 on a pipeline behind the solid-liquid separator. The solid phase obtained by the separation of the solid-liquid separator 4 on the second liquid outlet pipeline is sent into the second reactor through the pipeline, the liquid phase obtained by the separation of the solid-liquid separator 4 on the second liquid outlet pipeline is sent out, the liquid phase and the solid phase obtained by the separation of the solid-liquid separator 4 on the second circulating pipeline are respectively and circularly connected into the second reactor, the liquid phase obtained by the separation of the solid-liquid separator on the first liquid outlet pipeline is connected into the second circulating pipeline through the pipeline and converged into the second reactor, and the second circulating pipeline is also provided with the delivery pump 6.
As a design idea of this embodiment, the reactor further includes N intermediate reactors arranged between the first reactor and the second reactor, where N is a natural integer greater than 0, the first reactor, the N intermediate reactors, and the second reactor are sequentially connected in series, a reaction liquid level of any intermediate reactor is between reaction liquid levels of its front and rear adjacent reactors, and a reaction liquid overflow pipe 8 is arranged between the intermediate reactor and the adjacent reactor; the reaction liquid level in any intermediate reactor is used as a gas collection chamber, the top of the intermediate reactor is provided with an exhaust pipe, and the exhaust pipe is communicated with the gas collection chamber. Any intermediate reactor is provided with a liquid outlet pipeline and a circulating pipeline, the liquid outlet pipeline and the circulating pipeline are both provided with a solid-liquid separator 4, a solid phase obtained by separating the liquid outlet pipeline by the solid-liquid separator 4 is sent into the corresponding reactor by the pipeline, a liquid phase and a solid phase obtained by separating the liquid circulating pipeline by the solid-liquid separator 4 are respectively and circularly connected into the reactor, and a liquid phase obtained by separating the liquid outlet pipeline by the solid-liquid separator 4 is connected into the circulating pipeline of the next adjacent reactor.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a realize serialization solid-liquid reaction system of waste gas recovery which characterized in that: the reactor comprises a reactor (2), a solid-liquid mixer (1), a solid-liquid separator (4) and a delivery pump (6), wherein a gas collection chamber is arranged above the reaction liquid level in the reactor (2), and an exhaust pipe is arranged at the top of the reactor (2) and communicated with the gas collection chamber;
the reactor is provided with a liquid raw material liquid inlet pipe and a suspension liquid inlet pipe, the solid-liquid mixer (1) is used for stirring a solid-phase raw material and a solvent into a suspension or forming a mixed liquid with the solid-phase raw material by using the solvent as a carrier, the solid-liquid mixer (1) is communicated with the reactor (2) through the suspension liquid inlet pipe, and the suspension liquid inlet pipe and the liquid raw material liquid inlet pipe extend into the reactor below the reaction liquid level;
the reactor is at least provided with a liquid outlet pipeline, the liquid outlet pipeline is provided with the solid-liquid separator (4), and a solid phase obtained by separating reaction liquid by the solid-liquid separator (4) returns to the reactor (2) through the pipeline;
the reactor is provided with a circulating pipeline, the conveying pump (6) is arranged on the circulating pipeline, and the reaction liquid continuously circulates inside and outside the reactor through the circulating pipeline.
2. The continuous solid-liquid reaction system for realizing waste gas recovery according to claim 1, wherein: the solid-liquid mixer (1) is used for stirring a solid-phase raw material and a solvent into a suspension by a stirring structure.
3. The continuous solid-liquid reaction system for realizing waste gas recovery according to claim 1, wherein: and a gas-liquid separator is arranged on the exhaust pipe.
4. The continuous solid-liquid reaction system for realizing waste gas recovery according to claim 1, wherein: the bottom of the reactor (2) is in an inverted cone shape, a hydraulic ejector (3) is arranged at the bottom of the cone, and the hydraulic ejector (3) is arranged at a position of a liquid return port of the circulating pipeline connected with the reactor; the solid phase separated by the solid-liquid separator (4) returns to the bottom of the inverted cone, and the circulating liquid is sprayed to the solid phase from bottom to top by the hydraulic ejector (3).
5. The continuous solid-liquid reaction system for realizing waste gas recovery according to claim 1, wherein: the liquid outlet pipeline can also be provided with branches connected to a circulating pipeline, and the liquid phase obtained by separation of the solid-liquid separator (4) is returned to the reactor as circulating liquid through the circulating pipeline; the liquid outlet pipeline forms a liquid seal pipeline (5) on the pipeline behind the solid-liquid separator.
6. The continuous solid-liquid reaction system for realizing waste gas recovery according to claim 4, wherein: the reactor (2) is internally provided with a guide shell, and the hydraulic ejector is positioned below the opening of the guide shell and meets the requirement that the ejection direction of the hydraulic ejector faces to the middle of the guide shell from bottom to top.
7. The continuous solid-liquid reaction system for realizing exhaust gas recovery according to claim 1 or 2, wherein: the solid-liquid mixer (1) comprises a shell (101) which can be opened or closed outwards, a guide shell (102), a stirring shaft (103) with stirring blades and a stirring motor for driving the stirring shaft (103) to rotate, wherein the guide shell is arranged in the shell (101) in a suspension mode, the stirring shaft (103) with the stirring blades extends into the middle of the guide shell (102), and the liquid inlet end of a turbid liquid inlet pipe is communicated with the interior of the shell.
8. The utility model provides a realize serialization solid-liquid reaction system of waste gas recovery which characterized in that: the device comprises a first reactor and a second reactor, wherein the height of the reaction liquid level of the first reactor is lower than that of the second reactor, and a reaction liquid overflow pipe is arranged between the first reactor and the second reactor; the part above the reaction liquid level in the first reactor and the second reactor is used as a gas collection chamber, the top of the first reactor and the second reactor is provided with an exhaust pipe, and the exhaust pipe is communicated with the gas collection chamber;
the first reactor is provided with a liquid raw material liquid inlet pipe, and the liquid raw material liquid inlet pipe extends below the liquid level of the reaction liquid; the second reactor is provided with a solid-liquid mixer, the solid-liquid mixer is used for stirring solid-phase raw materials and a solvent into turbid liquid, the solid-liquid mixer is communicated with the second reactor through a turbid liquid inlet pipe, and the turbid liquid inlet pipe extends below the liquid level of reaction liquid of the second reactor;
the first reactor is provided with a first liquid outlet pipeline and a first circulating pipeline, the first liquid outlet pipeline and the first circulating pipeline are both provided with solid-liquid separators, a solid phase obtained by the separation of the solid-liquid separators on the first liquid outlet pipeline is sent into the first reactor through the pipeline, and a liquid phase and a solid phase obtained by the separation of the solid-liquid separators on the first circulating pipeline are respectively and circularly connected into the first reactor; the second reactor is provided with a second liquid outlet pipeline and a second circulating pipeline, the second liquid outlet pipeline and the second circulating pipeline are both provided with solid-liquid separators, a solid phase obtained by the separation of the solid-liquid separators on the second liquid outlet pipeline is sent into the second reactor through the pipeline, a liquid phase obtained by the separation of the solid-liquid separators on the second liquid outlet pipeline is sent out, a liquid phase and a solid phase obtained by the separation of the solid-liquid separators on the second circulating pipeline are respectively and circularly connected into the second reactor, and a liquid phase obtained by the separation of the solid-liquid separators on the first liquid outlet pipeline is connected into the second circulating pipeline through the pipeline and is converged into the second reactor.
9. The continuous solid-liquid reaction system for realizing waste gas recovery according to claim 8, wherein: the first liquid outlet pipeline and the second liquid outlet pipeline form a liquid seal pipeline (5) on the pipeline behind the solid-liquid separator.
10. The continuous solid-liquid reaction system for realizing waste gas recovery according to claim 8, wherein: the reactor comprises a first reactor, a second reactor, N intermediate reactors and a reaction liquid overflow pipe, wherein the first reactor, the N intermediate reactors and the second reactor are sequentially connected in series, the reaction liquid level of any intermediate reactor is between the reaction liquid level heights of the front adjacent reactor and the back adjacent reactor, and the reaction liquid overflow pipe is arranged between the intermediate reactor and the adjacent reactor; the part above the reaction liquid level in any intermediate reactor is used as a gas collection chamber, the top of the intermediate reactor is provided with an exhaust pipe, and the exhaust pipe is communicated with the gas collection chamber;
any intermediate reactor is provided with a liquid outlet pipeline and a circulating pipeline, solid-liquid separators are arranged on the liquid outlet pipeline and the circulating pipeline, a solid phase obtained by the separation of the solid-liquid separators on the liquid outlet pipeline is sent into the corresponding reactor through the pipeline, a liquid phase and a solid phase obtained by the separation of the solid-liquid separators on the circulating pipeline are respectively and circularly connected into the reactor, and a liquid phase obtained by the separation of the solid-liquid separators on the liquid outlet pipeline is connected into the circulating pipeline of the next adjacent reactor.
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