CN210278778U - Industrial purification system for removing sulfide gas - Google Patents
Industrial purification system for removing sulfide gas Download PDFInfo
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- CN210278778U CN210278778U CN201920820738.0U CN201920820738U CN210278778U CN 210278778 U CN210278778 U CN 210278778U CN 201920820738 U CN201920820738 U CN 201920820738U CN 210278778 U CN210278778 U CN 210278778U
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Abstract
The utility model discloses an industrial clean system of desorption sulphide gas, including the desulfurizing tower, defogging device and waste water tank, the desulfurizing tower includes: the air inlet pipe is coaxially arranged in the tower body of the desulfurizing tower; the jet flow devices are of a funnel-shaped structure, the plurality of jet flow devices are sequentially coaxially sleeved on the periphery of the air inlet pipe along the longitudinal direction, and the jet flow devices are communicated with the air inlet pipe; the first spraying device is of a funnel-shaped structure and is attached to the lower end of the jet flow device; the second spraying device is of a funnel-shaped structure and is positioned at the upper end of the air outlet at intervals; the gas outlet pipe is arranged on the side wall of the upper part of the desulfurization tower body; the inlet end of the demisting device is communicated with the outlet end of the air outlet pipe; and the inlet end of the waste water tank is communicated with the lower end of the desulfurizing tower body. The utility model has the advantages of high removal rate, high desulfurization efficiency, stable output and the like, and is suitable for the treatment of sulfide gas in large-scale medium and small-sized power plants.
Description
Technical Field
The utility model relates to a sweetener technical field specifically is a desorption sulphide gaseous industrial purification system.
Background
In recent years, many areas of China require factories to achieve ultra-low emissions, with sulfur dioxide emissions below 35mg/Nm3. At present, when the sulfur substances in the waste gas of a factory are treated, the tail gas of the factory is generally only introduced into a sulfur removing agent (strong alkaline liquid), and is discharged after being subjected to chemical reaction with the liquid, and under the conditions of high operation and maintenance level of the factory and good maintenance of a dust remover, the sulfur content of the sulfide gas is 30mg/Nm3-100mg/Nm3Meanwhile, the amount of sulfide gas is considerable, and the purification equipment for removing sulfide gas needs to purify the sulfide gas continuously and efficiently in a moment, so that the purified sulfide gas meets the emission requirement marked by local emission and is lower than the national emission standard, but the sulfur removal mode often cannot meet the emission requirement, and sulfur substances in the treated waste gas still exceed the standard.
In the prior art, a spray tower in a desulfurizing tower is one of the most widely used desulfurizing tower types, has the advantages of simple structure and mature and reliable process, is widely applied to the treatment of low-sulfur sulfide gas in large-scale and medium-scale and small-scale power plants, but only depends on single desulfurization of the spray tower, is difficult to realize the ultralow emission of sulfur dioxide, has unsatisfactory desulfurization efficiency, and often brings secondary pollution when the waste is recycled.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model also aims at providing an industrial purification system of desorption sulphide gas, have simple structure, the stable operation, the energy consumption is low, advantages such as long service life.
In order to realize the objects and other advantages of the present invention, an industrial purification system for removing sulfide gas is provided, comprising:
a desulfurization tower, comprising:
the lower end of the air inlet pipe is communicated with a booster fan, and a first slurry inlet branch pipe is arranged in the air inlet pipe at intervals;
the jet flow device is of a funnel-shaped structure, a first interlayer is arranged in the jet flow device, a plurality of jet flow devices are coaxially sleeved on the periphery of the air inlet pipe at intervals, the first interlayer is communicated with the air inlet pipe, and an air outlet is formed in the upper end face of the jet flow device and communicated with the first interlayer;
the first spraying device is of a funnel-shaped structure, a plurality of first spraying devices are coaxially sleeved on the periphery of the air inlet pipe at intervals, the first spraying devices are attached to the lower end of the jet flow device, the periphery of each first spraying device is attached to the inner peripheral wall of the desulfurizing tower body, and a second interlayer is arranged in each first spraying device;
the second spraying device is of a funnel-shaped structure, one second spraying device is arranged between every two adjacent first spraying devices, the second spraying devices are coaxially sleeved on the periphery of the air inlet pipe, the second spraying devices are distributed at the upper end of the air outlet hole, the periphery of the second spraying devices and the inner peripheral wall of the desulfurizing tower body are arranged at intervals, and a third interlayer is arranged in each second spraying device; and
the gas outlet pipe is arranged on the side wall of the upper part of the desulfurization tower body, and the inlet end of the gas outlet pipe is positioned at the upper end of the first spraying device;
the inlet end of the demisting device is communicated with the outlet end of the air outlet pipe, and the outlet end of the demisting device is communicated with a chimney; and
the inlet end of the waste water tank is communicated with a reflux opening at the bottom of the desulfurizing tower body;
the connection parts of the lower ends of the jet flow device, the first spraying device and the second spraying device and the periphery of the air inlet pipe are provided with a plurality of slurry outlets at intervals, and pressurized lime slurry is introduced into each of the second interlayer and the third interlayer through a slurry inlet pipe.
Preferably, the bottom of the desulfurization tower body is arranged into a funnel-shaped structure, a reflux port at the bottom of the desulfurization tower body is communicated with an inlet end of a slurry outlet pipe, and an outlet end of the slurry outlet pipe is communicated with the wastewater tank; the utility model discloses a desulfurization tower, including the intake pipe, the top of intake pipe is provided with first spray set, intake pipe top interval is located the below at desulfurization tower body top, intake pipe bottom entry end passes from inside behind the lateral wall of desulfurization tower body bottom with set up outside the desulfurization tower body booster fan intercommunication.
Preferably, the outer periphery of the jet flow device is attached to the inner peripheral wall of the tower body of the desulfurization tower, an annular first slurry outlet is formed in the inner periphery of an opening in the bottom of the jet flow device, the first slurry outlet and the air inlet pipe are coaxially arranged, and the inner diameter of the first slurry outlet is larger than the outer diameter of the air inlet pipe; a plurality of air guide tubes are arranged on the inner periphery of the first slurry outlet and are transversely and symmetrically distributed on the outer periphery of the air inlet tube, the first ends of the air guide tubes are communicated with the first interlayer, and the second ends of the air guide tubes are communicated with the air inlet tube; the air outlet hole is formed in the upper end face of the jet flow device on the periphery of the opening in the upper end of the first slurry outlet.
Preferably, an annular second slurry outlet is formed in the inner periphery of the bottom opening of the first spraying device, the second slurry outlet and the air inlet pipe are coaxially arranged, and the inner diameter of the second slurry outlet is consistent with that of the first slurry outlet; the inner periphery of the second pulp outlet is provided with a plurality of positioning columns, the positioning columns are transversely and symmetrically fixed to the outer periphery of the air inlet pipe, the size of each positioning column is consistent with the outer size of the air guide pipe, and the positioning columns are attached to the lower end of the air guide pipe.
Preferably, the periphery of the second spraying device and the inner peripheral wall of the tower body of the desulfurization tower are arranged at intervals, an annular third slurry outlet is formed in the inner periphery of the bottom opening of the second spraying device, the third slurry outlet and the air inlet pipe are coaxially arranged, and the inner diameter of the third slurry outlet is consistent with that of the second slurry outlet.
Preferably, a second slurry inlet branch pipe is axially arranged on the outer wall of the desulfurization tower body, a plurality of first liquid guide pipes are axially arranged on the pipe wall of the second slurry inlet branch pipe at intervals, the positions of the first liquid guide pipes correspond to the positions of the first spraying devices one by one, the first ends of the first liquid guide pipes are communicated with the second slurry inlet branch pipe, and the second ends of the first liquid guide pipes are communicated with the second interlayer; the inlet end of the first slurry inlet branch pipe sequentially penetrates through the side wall of the bottom of the air inlet pipe and the side wall of the bottom of the tower body of the desulfurization tower from the inside and then is led out outwards, and the led-out end is communicated with the slurry inlet pipe after being converged with the inlet end of the bottom of the second slurry inlet branch pipe.
Preferably, a plurality of second liquid guide tubes are arranged on the inner periphery of the third slurry outlet, the second liquid guide tubes are transversely and symmetrically distributed on the periphery of the second slurry inlet branch tube, a plurality of branch tube holes are formed in the tube wall of the air inlet tube at intervals along the radial direction, the opening positions of the branch tube holes correspond to the positions of the second liquid guide tubes one by one, the first ends of the second liquid guide tubes are communicated with the third interlayer, and the second ends of the second liquid guide tubes penetrate through the branch tube holes to be communicated with the second slurry inlet branch tube.
Preferably, a certain distance is led out from the top of the first slurry inlet branch pipe after the top of the first slurry inlet branch pipe penetrates through the top end of the air inlet pipe from the inside, the top of the leading-out end is located below the first spraying device at the top, and the second spraying device is arranged at the top end of the first slurry inlet branch pipe.
Preferably, a water level sensor is installed on the inner peripheral wall of the first slurry outlet of the jet flow device arranged at the lower part of the air inlet pipe, the terminal of the water level sensor is connected with a controller, and the controller is connected with a slurry inlet pump on the slurry inlet pipe.
Preferably, the lower surface of the first spraying device is provided with a plurality of mounting holes in a direction perpendicular to the surface of the first spraying device, and the mounting holes cover the lower surface of the first spraying device; the spray nozzle is arranged in the mounting hole, communicated with the second interlayer and sprayed in the direction vertical to the lower surface of the first spraying device, and the first spraying device and the second spraying device are arranged in parallel at intervals.
The utility model has the advantages as follows:
1. the utility model discloses simple structure is compact, by purpose-built desulfurizing tower, the defogging device, waste water tank etc. constitute, and it is high to have the sulphur removal rate, and desulfurization efficiency is big, and the output is stable, and the energy consumption is low, advantages such as long service life are applicable to some large-scale and well small-size power plants to the gaseous improvement of sulphide.
2. The utility model discloses a multiple jet device's inlet structure makes the air current fully smashed, effectively improves the contact rate of sulphide gas and lime slurry, carries out gradual contact between gas-liquid simultaneously, prolongs the absorption time, very big improvement sulfur dioxide's desorption rate.
3. The utility model discloses a set up the second spray set with the high-pressure offset of jet device to and the laminating is at the first spray set of jet device lower extreme, utilize two strands of high-speed gas-liquid flows to strike mutually earlier and carry out preliminary desulfurization, adopt the spraying technique to carry out during the gas-liquid double-phase cross flow contact absorption and react again, make under the condition of equal desulfurizing tower volume, have great area of contact and longer contact time between the gas-liquid, thereby improved sulfur dioxide's desorption rate and desulfurization efficiency.
4. The utility model discloses lower extreme opening interval with first spray set and jet flow set sets up the periphery in the intake pipe for when opening part sulphide gas and lime thick liquid are against current, take place the bubbling reaction between the gas-liquid, further improved sulphur removal rate and desorption efficiency.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a side view of a desulfurization tower of the present invention;
FIG. 2 is a longitudinal half-sectional view of the desulfurizing tower of the present invention;
fig. 3 is a schematic structural view of the jet flow device of the present invention;
fig. 4 is a schematic structural view of the spraying device of the present invention;
fig. 5 is an enlarged view of the present invention a;
fig. 6 is a plan view of the jet flow device of the present invention;
fig. 7 is a top view of the first spraying device of the present invention;
fig. 8 is a top view of the second spraying device of the present invention.
In the figure: 1. a desulfurizing tower body; 2. a booster fan; 3. an air inlet pipe; 4. a jet flow device; 5. a first spraying device; 6. a second spraying device; 7. a first slurry inlet branch pipe; 8. a second slurry inlet branch pipe; 9. an air outlet pipe; 10. a pulp outlet pipe; 11. a water level sensor; 12. a nozzle; 13. mounting holes; 41. an air outlet; 42. a first slurry outlet; 43. an air duct; 44. a manifold aperture; 51. a second slurry outlet; 52. a positioning column; 61. a third paddle outlet; 62. a second liquid guide pipe.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Referring to fig. 2, the present invention provides a technical solution: an industrial purification system for removing sulfide gas comprises a desulfurizing tower, a demisting device and a wastewater tank.
Specifically, the desulfurizing tower includes desulfurizing tower body 1, intake pipe 3, jet flow device 4, first spray set 5, second spray set 6 and outlet duct 9 etc. wherein, 3 coaxial settings in desulfurizing tower body 1 of intake pipe, and jet flow device 4, the coaxial interval cover of first spray set 5 and second spray set 6 are established in 3 peripheries of intake pipe, and jet flow device 4 and 3 intercommunications of intake pipe, and outlet duct 9 sets up on the lateral wall on 1 upper portion of desulfurizing tower body.
The bottom of the desulfurizing tower body 1 is set into a funnel-shaped structure, a backflow port at the bottom of the desulfurizing tower body 1 is communicated with an inlet end of a slurry outlet pipe 10, and an outlet end of the slurry outlet pipe 10 is communicated with a wastewater tank.
The lateral wall that the entry end of intake pipe 3 bottom passed 1 bottom of desulfurizing tower body from inside extends outward, should stretch out the end and set up in 1 outside booster fan 2 intercommunication of desulfurizing tower body, and booster fan 2 is leading-in to intake pipe 3 after with the gaseous pressurization of sulphide, and sulphide gas flows along intake pipe 3 upwards after that to spout the inside that enters into desulfurizing tower body 1 in the jet equipment 4 with 3 intercommunications of intake pipe.
A second slurry inlet branch pipe 8 is axially arranged on the outer wall of the desulfurizing tower body 1, and pressurized lime slurry is introduced into the first spraying device 5 by the second slurry inlet branch pipe 8; the interval is provided with first thick liquid branch pipe 7 in the intake pipe 3, and first thick liquid branch pipe 7 is introduced the second spray set 6 with the lime thick liquid of pressurization, and the lateral wall that the lateral wall of intake pipe 3 bottom and desulfurizing tower body 1 bottom were passed from inside in proper order to the lateral wall back of advancing thick liquid branch pipe 7 entry end and drawing forth, should draw forth the end and advance thick liquid 8 bottom entry ends of thick liquid branch pipe and gather the back and advance thick liquid pipe intercommunication with the second.
The jet flow device 4 is of a funnel-shaped structure, a plurality of jet flow devices 4 are coaxially arranged at intervals on the periphery of the air inlet pipe 3, the periphery of each jet flow device 4 is attached to the inner peripheral wall of the desulfurization tower body 1, a first interlayer is arranged in each jet flow device 4 and is communicated with the air inlet pipe 3, the upper end face of each jet flow device 4 is provided with an air outlet hole 41, each air outlet hole 41 is communicated with the first interlayer, specifically, the air inlet pipe 3 guides pressurized sulfide gas into the first interlayer and then sprays the sulfide gas into the desulfurization tower body 1 from the air outlet holes 41, the air inlet structure of each jet flow device 4 enables the air flow to be fully crushed, the contact rate of the sulfide gas and lime slurry is effectively improved, further, the jet flow devices 4 are coaxially arranged at intervals on the periphery of the air inlet pipe 3, the sulfide gas is sprayed outwards layer by layer, and therefore, the reaction contact area of the sulfide gas in the desulfurization tower body is further increased, and simultaneously, the contact time between gas and liquid is prolonged. The aperture of the air outlet 41 is between 100um and 1mm, and the air outlet is matched with the high pressure in the first interlayer, so that the liquid gathered on the upper end surface of the jet flow device 4 is prevented from entering the first interlayer through the air outlet 41.
First spray set 5 is a funnel-shaped structure, and the coaxial interval cover of a plurality of first spray set 5 is established in 3 peripheries of intake pipe, and the laminating of first spray set 5 sets up at the 4 lower extremes of jet device, and the laminating of 5 peripheries of first spray set and 1 internal perisporium in the desulfurizing tower body sets up, and further, has seted up the second intermediate layer in first spray set 5, and the second advances thick liquid branch pipe 8 and second intermediate layer intercommunication.
Specifically, a plurality of first liquid guide pipes are arranged on the pipe wall of the second slurry inlet branch pipe 8 at intervals along the axial direction, the positions of the first liquid guide pipes correspond to the positions of the first spraying devices 5 one by one, the first end of each first liquid guide pipe is communicated with the second slurry inlet branch pipe 8, and the second end of each first liquid guide pipe is communicated with the second interlayer.
In this embodiment, the lower surface of the first spraying device 5 is provided with a plurality of mounting holes 13 in a direction perpendicular to the surface, and the mounting holes 13 cover the lower surface of the first spraying device 5; and a nozzle 12 is arranged in the mounting hole 13, the nozzle 12 is communicated with the second interlayer, the nozzle 12 sprays along the direction vertical to the lower surface of the first spraying device 5, and the first spraying device 5 and the second spraying device 6 are arranged in parallel at intervals. That is to say, the direction that the first spray device 5 sprays the lime slurry is perpendicular to the path of gas flowing under the first spray device 5, and this kind of design makes under the equal first spray device 5 lower surface area's the condition, spray liquid that nozzle 12 sprays and sulfide gas that flows through its below obtain bigger area of contact to the desorption rate of sulfur dioxide has been improved. Meanwhile, the mounting holes 13 cover the lower surface of the first spraying device 5, that is, the nozzles 12 cover the lower surface of the first spraying device 5, so that the lime slurry sprayed in the first spraying device 5 covers the whole path through which the sulfide gas flows, the contact rate of the gas and the lime slurry is improved, and under the condition of matching with the same size of the desulfurization tower, the inner wall of the desulfurization tower body 1 is upwards provided with a multi-layer structure with the first spraying device 5 and the jet flow device 4 matched with each other, so that the contact efficiency and the contact distance of the gas and the lime slurry are effectively increased, and the reaction absorption efficiency of harmful gases is improved.
As can be seen from the above, the sulfide gas entering from the bottom of the gas inlet pipe 3 flows upward through the jet flow device 4, enters the first interlayer and then is sprayed out from the gas outlet 41, the pressurized lime slurry is introduced into the second interlayer through the first liquid guide pipe by the second slurry inlet branch pipe 8, and then the lime slurry is sprayed downward from the nozzle 12 on the lower surface of the first spraying device 5, that is, in the space between the first spraying device 5 and the jet flow device 4, the sulfide gas and the lime slurry are in gas-liquid two-phase full contact absorption neutralization reaction, so that the sulfide gas is subjected to one-time spraying absorption, the reaction residence time of the sulfide gas in the tower is increased, and the absorption rate of the sulfide gas is effectively improved.
The second spraying device 6 is of a funnel-shaped structure, the second spraying device 6 is arranged between every two adjacent first spraying devices 5, the second spraying device 6 is coaxially sleeved on the periphery of the air inlet pipe 3, the second spraying device 6 is distributed at the upper end of the air outlet hole 41, the periphery of the second spraying device 6 and the inner peripheral wall of the desulfurizing tower body 1 are arranged at intervals, a third interlayer is arranged in the second spraying device 6, and the first slurry inlet branch pipe 7 is communicated with the third interlayer.
Specifically, the pressurized lime slurry is guided into the third interlayer by the first slurry inlet branch pipe 7, the high-pressure lime slurry sprayed in the second spraying device 6 is parallel to sulfide gas uniformly sprayed out of the jet flow device 4, high-pressure hedging occurs, so that two high-speed gas-liquid flows impact with each other to perform desulfurization, the removal rate of sulfur dioxide is greatly improved, the sulfide gas is subjected to primary spraying absorption of the lime slurry below the second spraying device 6 and then overflows upwards from a gap between the second spraying device 6 and the desulfurization tower body 1, the sulfide gas is subjected to secondary spraying absorption of the lime slurry sprayed by the first spraying device 5, and then sequentially passes through the first spraying device 5, the gap between the jet flow device 4 and the air inlet pipe 3 and overflows upwards, and the lime slurry passes through the lime slurry liquid layer sprayed in the second spraying device 6 positioned on the upper layer in a crossed manner to perform desulfurization, and so on, therefore, the sulfide gas is sprayed and absorbed for multiple times, the spraying reaction path is long, and the reaction residence time of the sulfide gas in the tower is prolonged, so that the absorption rate of the sulfide gas is effectively improved.
In the embodiment, the upper end and the lower end of the air inlet pipe 3 are respectively provided with a first spraying device 5, and the top of the air inlet pipe 3 is positioned below the top of the desulfurizing tower body 1; the top of the first slurry inlet branch pipe 7 penetrates through the top end of the air inlet pipe 3 from the inside and then is led out for a certain distance, the top of the leading-out end is positioned below the first spraying device 5 at the top, and the top end of the first slurry inlet branch pipe 7 is provided with a second spraying device 6; the inlet rear end of the outlet pipe 9 is arranged on the side wall of the upper part of the desulfurizing tower body 1, and the inlet end of the outlet pipe 9 is positioned above the first spraying device 5 at the top.
Furthermore, in order to make the waste liquid reflux, a plurality of slurry outlets are arranged at the connection positions of the lower ends of the jet flow device 4, the first spray device 5 and the second spray device 6 and the periphery of the air inlet pipe 3 at intervals.
Specifically, an annular first slurry outlet 42 is formed in the inner periphery of an opening in the bottom of the jet device 4, the first slurry outlet 42 and the air inlet pipe 3 are coaxially arranged, the inner diameter of the first slurry outlet 42 is larger than the outer diameter of the air inlet pipe 3, a plurality of air guide pipes 43 are arranged in the inner periphery of the first slurry outlet 42, the air guide pipes 43 are transversely and symmetrically distributed in the periphery of the air inlet pipe 3, the first ends of the air guide pipes 43 are communicated with the first interlayer, and the second ends of the air guide pipes 43 are communicated with the air inlet pipe 3.
Annular second grout outlet 51 has been seted up to the opening internal periphery of first spray set 5 bottom, and second grout outlet 51 sets up with intake pipe 3 is coaxial, and the internal diameter of second grout outlet 51 is unanimous with the internal diameter of first grout outlet 42, sets up a plurality of reference columns 52 in second grout outlet 51 internal periphery, and the horizontal symmetry of a plurality of reference columns 52 is fixed in the periphery of intake pipe 3, and the size of reference column 52 is unanimous with the outer dimension of air duct 43, and the reference column 52 laminating sets up at air duct 43 lower extreme.
An annular third slurry outlet 61 is formed in the inner periphery of an opening in the bottom of the second spraying device 6, the third slurry outlet 61 and the air inlet pipe 3 are coaxially arranged, the inner diameter of the third slurry outlet 61 is consistent with that of the second slurry outlet 51, a plurality of second liquid guide pipes 62 are arranged in the inner periphery of the third slurry outlet 61, the plurality of second liquid guide pipes 62 are transversely and symmetrically distributed on the periphery of the second slurry inlet branch pipe 8, a plurality of branch pipe holes 44 are formed in the pipe wall of the air inlet pipe 3 at intervals along the radial direction, the forming positions of the branch pipe holes 44 are in one-to-one correspondence with the positions of the second liquid guide pipes 62, a first end of each second liquid guide pipe 62 is communicated with the third interlayer, and a second end of each second liquid guide pipe 62 penetrates through the branch pipe hole 44 to be communicated.
As can be seen from the above, by setting the dimensions between the positioning post 52 and the gas guide tube 43, and between the second slurry outlet 51 and the first slurry outlet 42, the waste lime slurry can flow out from the slurry outlet to the maximum extent, so that the waste lime slurry is prevented from being accumulated between the spraying device and the jet device 4 due to the excessive flow rate of the spraying device, and at the same time, the lower end openings of the first spraying device 5 and the jet device 4 are spaced from each other at the periphery of the gas inlet tube 3, so that the sulfide gas and the lime slurry at the openings generate the counter-current, that is, the waste lime slurry flows from the second slurry outlet 51 to the first slurry outlet 42, and at the same time, the sulfide gas flows from the first slurry outlet 42 to the second slurry outlet 51, so that the gas-liquid reaction occurs, and the sulfide gas is further desulfurized, thereby not only effectively utilizing the sprayed lime slurry and improving the utilization rate of the lime slurry, meanwhile, the absorption rate and the removal efficiency of the sulfide gas are improved, and the cost is reduced.
In this embodiment, a water level sensor 11 is installed on the inner peripheral wall of the first slurry outlet 42 of the jet flow device 4 at the lower part of the air inlet pipe 3, and a controller is connected to the terminal of the water level sensor 11 and is connected to a slurry inlet pump on the slurry inlet pipe. Specifically, the water level sensor 11 measures the amount of the waste lime slurry which does not flow down in time in the slurry outlet, and the slurry inlet pump is adjusted by the controller, so that the output frequency of the liquid in the slurry inlet pipe is controlled, and the phenomenon that the waste lime slurry is accumulated on the upper surface of the jet flow device 4 in a large amount to cause blockage and lead to the fact that sulfide gas cannot be normally sprayed out from the gas outlet 41 can be effectively prevented. The utility model discloses in, through the liquid level height of the lime thick liquid that gathers above the jet device 4 of 3 lower parts of monitoring intake pipe, the simultaneous control advances the inflow of thick liquid flow and booster fan 2 of thick liquid pipe, realize the balance of the two, the flow of giving vent to anger that also is jet device 4 reaches dynamic balance with spray set's the flow of spouting, the liquid level height of the lime thick liquid that gathers in order to maintain every layer of jet device 4 bottom is lower, guarantee that the lime thick liquid that gathers above the jet device 4 of 3 lower parts of intake pipe can not be to the gaseous hindrance of causing of jet device 4 blowout sulphide, gas can smoothly flow.
The inlet end of the demisting device is communicated with the outlet end of the air outlet pipe 9, the outlet end of the demisting device is communicated with a chimney, and the purified wet sulfide gas is discharged from the chimney after being dried by the demisting device.
The entry end of waste water tank and the backward flow mouth intercommunication of desulfurizing tower body 1 bottom, the waste lime thick liquid is collected into waste water tank and is prevented to bring secondary pollution.
As described above, the sulfide gas is pressurized by the booster fan 2 and then introduced into the gas inlet pipe 3, the sulfide gas flows upward along the gas inlet pipe 3 and is ejected from the jet flow device 4 communicated with the gas inlet pipe 2 into the interior of the tower body of the desulfurization tower, the sulfide gas is first ejected uniformly from the gas outlet hole 41 of the jet flow device 4 at the bottommost portion, and forms high-pressure hedging with the lime slurry ejected from the second spray device 6 at the bottommost portion disposed at the upper end of the gas outlet hole 41, and a first gas-liquid reaction is performed, and then the sulfide gas overflows upward from the gap between the second spray device 6 at the bottommost portion and the inner wall of the tower body 1, at this time, the first spray device 5 at the bottommost portion ejects the lime slurry in the direction perpendicular to the lower surface of the first spray device 5, and performs a gas-liquid two-phase cross-flow contact absorption and neutralization reaction with the sulfide gas, that is, the sulfide gas sequentially passes through the second slurry outlet of the first spray device 5 positioned at the bottommost upper layer and the first slurry outlet of the spray device 4 positioned at the bottommost upper layer upwards, and performs bubbling reaction with the lime slurry flowing downwards in the second spray device 5 to complete the third desulfurization of the sulfide gas, the desulfurization structure is a one-layer structure, when the sulfide gas subjected to three-step desulfurization flows through the spray device 4 positioned at the bottommost upper layer, the sulfide gas reacts with the lime slurry sprayed out of the second spray device 6 positioned at the bottommost upper layer along the longitudinal direction and is mixed with the sulfide gas sprayed out of the air outlet 41 at the bottommost upper layer, and by analogy, the steps of multi-layer desulfurization reaction are repeated, finally, the wet sulfide gas which is fully purified and reaches the discharge mark is introduced into the demisting device from the air outlet pipe 9 to be dried, and finally is discharged from a chimney, and the waste lime slurry flows out layer by layer from the slurry outlets downwards, finally, the waste water is led into a waste water tank through a pulp outlet pipe 10 for recycling.
The utility model adopts the air inlet structure of the multiple jet device 4, which ensures that the airflow is fully crushed, effectively improves the contact rate of the sulfide gas and the lime slurry, and simultaneously, the gas and the liquid are gradually contacted, thereby prolonging the absorption time and greatly improving the removal rate of sulfur dioxide; the utility model discloses a set up with the second spray set 6 of 4 high-pressure offsets of jet flow device to and laminate in the first spray set 5 of 4 lower extremes of jet flow device, utilize two strands of high-speed gas-liquid flows to strike mutually earlier and carry out preliminary desulfurization, adopt spraying technique to carry out gas-liquid double-phase cross flow contact absorption neutralization reaction again, make under the condition of equal desulfurizing tower volume, have great area of contact and longer contact time between the gas-liquid, thus improved the desorption rate and the desulfurization efficiency of sulfur dioxide; the utility model discloses set up the periphery at the intake pipe with the lower extreme opening interval of first spray set 5 and jet flow unit 4 for when opening part sulphide gas and lime thick liquid are against current, take place the bubbling reaction between the gas-liquid, further improved sulphur removal rate and desorption efficiency. In a word, the industrial purification system for removing the sulfide gas has the advantages of high sulfur removal rate, high desulfurization efficiency, stable output, low energy consumption, long service life and the like, and is suitable for treating the sulfide gas in large-scale, medium-scale and small-scale power plants.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will recognize that: various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (10)
1. An industrial purification system for removing sulfide gas, comprising:
a desulfurization tower, comprising:
the device comprises an air inlet pipe (3) which is coaxially arranged in a desulfurization tower body (1), wherein the lower end of the air inlet pipe (3) is communicated with a booster fan (2), and a first slurry inlet branch pipe (7) is arranged in the air inlet pipe (3) at intervals;
the jet flow device (4) is of a funnel-shaped structure, a first interlayer is arranged in the jet flow device (4), the jet flow devices (4) are coaxially sleeved on the periphery of the air inlet pipe (3) at intervals, the first interlayer is communicated with the air inlet pipe (3), an air outlet hole (41) is formed in the upper end face of the jet flow device (4), and the air outlet hole (41) is communicated with the first interlayer;
the first spraying device (5) is of a funnel-shaped structure, a plurality of first spraying devices (5) are coaxially arranged at intervals and sleeved on the periphery of the air inlet pipe (3), the first spraying devices (5) are attached to the lower end of the jet flow device (4), the periphery of the first spraying devices (5) is attached to the inner peripheral wall of the desulfurizing tower body (1), and a second interlayer is arranged in each first spraying device (5);
the second spraying device (6) is of a funnel-shaped structure, one second spraying device (6) is arranged between every two adjacent first spraying devices (5), the second spraying device (6) is coaxially sleeved on the periphery of the air inlet pipe (3), the second spraying devices (6) are distributed at the upper ends of the air outlet holes (41), the periphery of the second spraying device (6) and the inner peripheral wall of the desulfurization tower body (1) are arranged at intervals, and a third interlayer is arranged in each second spraying device (6); and
the gas outlet pipe (9) is arranged on the side wall of the upper part of the desulfurization tower body (1), and the inlet end of the gas outlet pipe (9) is positioned at the upper end of the first spraying device (5);
the inlet end of the demisting device is communicated with the outlet end of the air outlet pipe (9), and the outlet end of the demisting device is communicated with a chimney; and
the inlet end of the wastewater water tank is communicated with a reflux opening at the bottom of the desulfurizing tower body (1);
the connection parts of the lower ends of the jet flow device (4), the first spraying device (5) and the second spraying device (6) and the periphery of the air inlet pipe (3) are provided with a plurality of slurry outlets at intervals, and pressurized lime slurry is introduced into each of the second interlayer and the third interlayer through a slurry inlet pipe.
2. The industrial purification system for removing sulfide gas according to claim 1, wherein the bottom of the desulfurization tower body (1) is arranged in a funnel-shaped structure, the reflux port at the bottom of the desulfurization tower body (1) is communicated with the inlet end of a slurry outlet pipe (10), and the outlet end of the slurry outlet pipe (10) is communicated with the wastewater tank; intake pipe (3) upper and lower both ends are provided with one respectively first spray set (5), intake pipe (3) top interval is located the below at desulfurizing tower body (1) top, intake pipe (3) bottom entry end is passed from inside behind the lateral wall of desulfurizing tower body (1) bottom with set up and be in desulfurizing tower body (1) is outside booster fan (2) intercommunication.
3. The industrial purification system for removing sulfide gas according to claim 2, wherein the outer periphery of the jet flow device (4) is attached to the inner peripheral wall of the desulfurization tower body (1), an annular first slurry outlet (42) is formed in the inner periphery of the bottom opening of the jet flow device (4), the first slurry outlet (42) is coaxial with the gas inlet pipe (3), and the inner diameter of the first slurry outlet (42) is larger than the outer diameter of the gas inlet pipe (3); a plurality of air guide tubes (43) are arranged on the inner periphery of the first pulp outlet (42), the air guide tubes (43) are transversely and symmetrically distributed on the outer periphery of the air inlet pipe (3), the first ends of the air guide tubes (43) are communicated with the first interlayer, and the second ends of the air guide tubes (43) are communicated with the air inlet pipe (3); the air outlet hole (41) is formed in the upper end face of the jet flow device (4) on the periphery of the opening at the upper end of the first slurry outlet (42).
4. The industrial purification system for removing sulfide gas according to claim 3, wherein an annular second slurry outlet (51) is formed in the inner periphery of the bottom opening of the first spraying device (5), the second slurry outlet (51) is arranged coaxially with the gas inlet pipe (3), and the inner diameter of the second slurry outlet (51) is consistent with the inner diameter of the first slurry outlet (42); the inner periphery of the second pulp outlet (51) is provided with a plurality of positioning columns (52), the positioning columns (52) are transversely and symmetrically fixed on the periphery of the air inlet pipe (3), the size of each positioning column (52) is consistent with the outer size of the air guide pipe (43), and the positioning columns (52) are attached to the lower end of the air guide pipe (43).
5. The industrial purification system for removing sulfide gas according to claim 4, wherein the outer periphery of the second spray device (6) is spaced apart from the inner peripheral wall of the tower body (1) of the desulfurization tower, an annular third slurry outlet (61) is formed in the inner periphery of the bottom opening of the second spray device (6), the third slurry outlet (61) is coaxial with the air inlet pipe (3), and the inner diameter of the third slurry outlet (61) is consistent with the inner diameter of the second slurry outlet (51).
6. The industrial purification system for removing sulfide gas according to claim 5, wherein a second slurry inlet branch pipe (8) is axially arranged on the outer wall of the desulfurization tower body (1), a plurality of first liquid guide pipes are axially arranged on the pipe wall of the second slurry inlet branch pipe (8) at intervals, the positions of the first liquid guide pipes correspond to the positions of the first spraying devices (5) one by one, the first ends of the first liquid guide pipes are communicated with the second slurry inlet branch pipe (8), and the second ends of the first liquid guide pipes are communicated with the second interlayer; the inlet end of the first slurry inlet branch pipe (7) penetrates through the side wall of the bottom of the air inlet pipe (3) and the side wall of the bottom of the desulfurizing tower body (1) in sequence from the inside and then is led out outwards, and the leading-out end is communicated with the slurry inlet pipe after being converged by the inlet end of the bottom of the second slurry inlet branch pipe (8).
7. The industrial purification system for removing sulfide gas according to claim 6, wherein a plurality of second liquid guiding pipes (62) are arranged on the inner periphery of the third slurry outlet (61), the plurality of second liquid guiding pipes (62) are transversely and symmetrically distributed on the outer periphery of the second slurry inlet branch pipe (8), a plurality of branch pipe holes (44) are formed in the pipe wall of the air inlet pipe (3) at intervals along the radial direction, the opening positions of the branch pipe holes (44) correspond to the positions of the second liquid guiding pipes (62) one by one, the first ends of the second liquid guiding pipes (62) are communicated with the third interlayer, and the second ends of the second liquid guiding pipes (62) pass through the branch pipe holes (44) and are communicated with the second slurry inlet branch pipe (8).
8. The industrial purification system for removing sulfide gas according to claim 6, wherein the top of the first slurry inlet branch pipe (7) is led out from the top of the inlet pipe (3) from the inside to a certain distance, the top of the led-out end is positioned below the first spray device (5) at the top, and the top of the first slurry inlet branch pipe (7) is provided with one second spray device (6).
9. An industrial purification system for removing sulfide gases according to claim 3, wherein a water level sensor (11) is installed on the inner peripheral wall of the first slurry outlet (42) of the jet flow device (4) arranged at the lower part of the gas inlet pipe (3), the terminal of the water level sensor (11) is connected with a controller, and the controller is connected with a slurry inlet pump on the slurry inlet pipe.
10. The industrial purification system for removing sulfide gas according to claim 1, wherein the lower surface of the first spraying device (5) is provided with a plurality of mounting holes (13) in a direction perpendicular to the surface, and the mounting holes (13) cover the lower surface of the first spraying device (5); install nozzle (12) in mounting hole (13), nozzle (12) with the second intermediate layer intercommunication, just nozzle (12) along with first spray set (5) lower surface vertically direction sprays, first spray set (5) and second spray set (6) parallel interval set up.
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|---|---|---|---|
| CN201920820738.0U CN210278778U (en) | 2019-06-03 | 2019-06-03 | Industrial purification system for removing sulfide gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180373A (en) * | 2019-06-03 | 2019-08-30 | 苏州仕净环保科技股份有限公司 | A kind of Industrial cleaning facility system removing sulfide gas |
| CN117085503A (en) * | 2023-10-19 | 2023-11-21 | 汇舸(南通)环保设备有限公司 | Intelligent desulfurization treatment spray device for purifying ship tail gas |
-
2019
- 2019-06-03 CN CN201920820738.0U patent/CN210278778U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180373A (en) * | 2019-06-03 | 2019-08-30 | 苏州仕净环保科技股份有限公司 | A kind of Industrial cleaning facility system removing sulfide gas |
| CN110180373B (en) * | 2019-06-03 | 2023-11-17 | 苏州仕净科技股份有限公司 | Industrial purification system for removing sulfide gas |
| CN117085503A (en) * | 2023-10-19 | 2023-11-21 | 汇舸(南通)环保设备有限公司 | Intelligent desulfurization treatment spray device for purifying ship tail gas |
| CN117085503B (en) * | 2023-10-19 | 2024-01-23 | 汇舸(南通)环保设备有限公司 | Intelligent desulfurization treatment spray device for purifying ship tail gas |
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