CN209507606U - Desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products - Google Patents
Desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products Download PDFInfo
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- CN209507606U CN209507606U CN201821909669.2U CN201821909669U CN209507606U CN 209507606 U CN209507606 U CN 209507606U CN 201821909669 U CN201821909669 U CN 201821909669U CN 209507606 U CN209507606 U CN 209507606U
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Abstract
The utility model discloses the processing equipments that a kind of desulphurization catalyst regenerates obtained sulfuric acid by-products, to solve to reduce the technical issues of impurity in the obtained sulfuric acid by-products of desulphurization catalyst regeneration influences subsequent technique.Desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products, comprising: mixing reactor, for the sulfuric acid received and ammonium hydroxide hybrid reaction to be obtained the mixed liquor containing ammonium sulfate solution and precipitate metal hydroxides and export the mixed liquor；Solid-liquid separator, the impurity for receiving the mixed liquor, solid-liquid separation treatment being carried out to the mixed liquor and ammonium sulfate solution and metal hydroxide-containing are discharged respectively.The processing equipment that the desulphurization catalyst of the utility model regenerates obtained sulfuric acid by-products can effectively remove together the impurity such as iron, aluminium in the sulfuric acid while being sulphur ammonium by the sulfuric acid conversion, and gained sulphur ammonium is easy to use.
Description
Technical field
The utility model relates to the technical field of regeneration of desulphurization catalyst, and in particular to a kind of regeneration of desulphurization catalyst is obtained
The processing method and equipment of sulfuric acid by-products.
Background technique
Desulfurization technology of the catalysis method flue gas desulfurization technique as great application prospect, typically, the basic principle is that: cigarette
Sulfur dioxide, water, oxygen in gas are attracted to the upper of catalyst and the generation that reacts under the catalytic action of active component
Sulfuric acid；After the sulfuric acid adhered on catalyst reaches a certain level, dilute sulfuric acid and/or water are reused as regenerated liquid to the catalysis
Agent carries out circulated sprinkling to remove the sulfuric acid of attachment on a catalyst and discharge catalyst activity position (above-mentioned circulated sprinkling process
Referred to as catalyst regeneration)；And the regenerated liquid (dilute sulfuric acid) after use is re-used as sulfuric acid by-products and carries out later use.
It is equipped with the Chemical Manufactures such as the coking plant of ammonium sulfate workshop section and catalysis method flue gas desulfurization workshop section, processing occasion at the same time, on
State the raw material that the obtained sulfuric acid by-products of catalyst regeneration are typically transported to ammonium sulfate workshop section and are used as production sulphur ammonium.But always with
Come, the sulfuric acid is sent directly into ammonium sulfate workshop section；Also it has no that someone discloses and proposed the problem of doing so.It is practical based on this
Understanding and specific engineering practice of the novel utility model people for above-mentioned catalysis method flue gas desulfurization technique overall technology system
Experience, utility model people points out: regenerated liquid can be to desulphurization plant, generating apparatus and the facilities such as relevant pipeline and valve carry out again
Corrosion, in addition erosion of the regenerated liquid to catalyst, leads to that the impurity such as certain iron, aluminium can be carried in sulfuric acid, influence sulphur ammonium quality.
Utility model content
The purpose of this utility model is to provide a kind of desulphurization catalyst regenerate obtained sulfuric acid by-products processing method and
Equipment, to solve to reduce the technical issues of impurity in the obtained sulfuric acid by-products of desulphurization catalyst regeneration influences subsequent technique.
To achieve the goals above, one aspect according to the present utility model provides a kind of desulphurization catalyst regeneration institute
Obtain the processing method of sulfuric acid by-products.Desulphurization catalyst regenerates the processing method of obtained sulfuric acid by-products, comprising: takes the sulfuric acid
It is mixed with ammonium hydroxide and reacts to obtain the mixed liquor containing ammonium sulfate solution and precipitate metal hydroxides；Mixed liquor is separated by solid-liquid separation
Handle and obtain respectively the impurity of ammonium sulfate solution and metal hydroxide-containing.
The desulphurization catalyst of the utility model regenerates in the processing method of obtained sulfuric acid by-products, generally by the sulfuric acid and
Ammonium hydroxide be sufficiently mixed after mixed liquor pH value control be 9-11, be preferably controlled to 9-10, more preferably control be 9.5-10.This
Outside, the mixed liquor is that the sulfuric acid for being generally 5-15% by mass concentration is mixed and reacted with the ammonium hydroxide that mass fraction is 5-20%
It obtains.
The processing method that the desulphurization catalyst of the utility model regenerates obtained sulfuric acid by-products is particularly suitable for being equipped with simultaneously
The Chemical Manufacture of ammonium sulfate workshop section and catalysis method flue gas desulfurization workshop section, processing occasion, for example it is equipped with catalysis method flue gas desulfurization workshop section
Coking plant etc..At this moment, the ammonium hydroxide may be derived from ammonium sulfate workshop section, while can be by solid-liquid separation treatment ammonium sulfate solution obtained
Return to ammonium sulfate workshop section.In this way, allowing for the flexible utilization for realizing material between catalysis method flue gas desulfurization workshop section and ammonium sulfate workshop section.
The processing method that the desulphurization catalyst of the utility model regenerates obtained sulfuric acid by-products can also further take described
Sulfuric acid mixes with the impurity of solid-liquid separation treatment metal hydroxide-containing obtained and carries out neutralization reaction, the metal
Tail washings is discharged after hydroxide reaction dissolution.In this way, obtained sulfuric acid by-products directly can be regenerated come molten using desulphurization catalyst
Solve the impurity of solid-liquid separation treatment metal hydroxide-containing obtained, dissolved tail washings convenient for processing (can carry out into
The sewage treatment of one step).
To achieve the goals above, other side according to the present utility model provides a kind of desulphurization catalyst regeneration
The processing equipment of obtained sulfuric acid by-products.Desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products, comprising: hybrid reaction
Device, for the sulfuric acid received and ammonium hydroxide hybrid reaction to be obtained the mixing containing ammonium sulfate solution and precipitate metal hydroxides
Liquid simultaneously exports the mixed liquor；Solid-liquid separator, for receive the mixed liquor, to the mixed liquor carry out solid-liquid separation treatment and point
Not Pai Chu ammonium sulfate solution and metal hydroxide-containing impurity.
Further, connected between the mixing reactor and the source of supply of the sulfuric acid by vitriolic acid flux control unit
It connects, the vitriolic acid flux control unit includes signal detecting part and flow control executing agency, and the signal detecting part includes using
In to the first signal detecting part that is tentatively controlled of sulfuric acid amount for entering mixing reactor and for into mixing reactor
The second signal test section that is accurately controlled of sulfuric acid amount, first signal detecting part is is set to mixing reactor and institute
The flow sensor between the source of supply of sulfuric acid is stated, the second signal test section is that the pH value being set in mixing reactor passes
Sensor, the flow sensor and pH sensor respectively be set between mixing reactor and the source of supply of the sulfuric acid
The connection of flow control operator signals；Pass through ammonium hydroxide flow control between the mixing reactor and the source of supply of the ammonium hydroxide
Component connection, the ammonium hydroxide flow control component includes signal detecting part and flow control executing agency, the signal detecting part
Including the first signal detecting part tentatively controlled for the ammonia vol to entrance mixing reactor and for being mixed to entrance
The second signal test section that the ammonia vol of reactor is accurately controlled, first signal detecting part are to be set to hybrid reaction
Flow sensor between device and the source of supply of the ammonium hydroxide, the second signal test section is to be set in mixing reactor
PH sensor, flow sensor and pH sensor respectively be set between mixing reactor and the source of supply of the ammonium hydroxide
Flow control operator signals connection.
Further, the source of supply of the sulfuric acid is dense for storing in the catalyst step circulated sprinkling regenerative system
Spend the reservoir of highest sulfuric acid.
Further, the source of supply of the ammonium hydroxide is preferred from ammonium sulfate workshop section, is used to that sulphur be discharged on the solid-liquid separator
The outlet of ammonium salt solution is connected to ammonium sulfate workshop section by pipeline.
It further, including at least two mixing reactors, can be meshingly right between at least two mixing reactor
Same solid-liquid separator exports mixed liquor.
Further, each mixing reactor at least two mixing reactor respectively with same solid-liquid separator it
Between connected by mixed liquor flow control component；When at least two mixing reactor a mixing reactor with it is described
When blocking/be connected by corresponding mixed liquor flow control component between same solid-liquid separator, another mixing reactor with
It simultaneously turns on/blocks by corresponding mixed liquor flow control component between the same solid-liquid separator.
Further, the solid-liquid separator or on solid-liquid separator for the impurity of metal hydroxide-containing to be discharged
It exports and is connected between the impurity treatment device of connection and the source of supply of the sulfuric acid by flow control component, the flow control portion
Part includes signal detecting part and flow control executing agency, and the signal detecting part includes being set at solid-liquid separator or impurity
Manage the pH sensor in device, the pH sensor and the confession for being set to solid-liquid separator or impurity treatment device and the sulfuric acid
Flow control operator signals connection between Ying Yuan.
The mixing reactor can be a kind of mixing reactor with agitating device.The solid-liquid separator can be used
Plate centrifuge.The agitating device being stirred to substance therein can be set on the impurity treatment device.
The desulphurization catalyst of the utility model regenerate obtained sulfuric acid by-products processing method and equipment can will described in
Sulfuric acid conversion effectively removes the impurity such as iron, aluminium in the sulfuric acid while being sulphur ammonium together, and gained sulphur ammonium is easy to use.
The utility model is described further with reference to the accompanying drawings and detailed description.The utility model is additional
Aspect and advantage will be set forth in part in the description, and partially will become apparent from the description below, or practical by this
Novel practice is recognized.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to assist understanding to the utility model, provided in attached drawing
Content and its related explanation can be used for explaining the utility model in the present invention, but is not constituted to the utility model not
Work as restriction.In the accompanying drawings:
Fig. 1 is obtained the knot of one embodiment of the processing equipment of sulfuric acid by-products by the regeneration of the utility model desulphurization catalyst
Structure schematic diagram.
Specific embodiment
Clear, complete explanation is carried out to the utility model with reference to the accompanying drawing.Those of ordinary skill in the art are being based on
The utility model will be realized in the case where these explanations.Before being illustrated in conjunction with attached drawing to the utility model, spy is needed
It is not pointed out that:
The technical solution provided in each section including following the description, technical characteristic in the utility model,
In the case where not conflicting, these technical solutions, technical characteristic be can be combined with each other.
In addition, the embodiments of the present invention being related in following the description are generally only the reality of the utility model a part
Example is applied, instead of all the embodiments.Therefore, based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, the model of the utility model protection all should belong to
It encloses.
The specification and claims of the utility model and term " includes " in related part and its is any
Deformation, it is intended that cover and non-exclusive include.
Fig. 1 is obtained the knot of one embodiment of the processing equipment of sulfuric acid by-products by the regeneration of the utility model desulphurization catalyst
Structure schematic diagram.As shown in Figure 1, the processing equipment that the utility model desulphurization catalyst regenerates obtained sulfuric acid by-products includes that mixing is anti-
Answer device 100 and solid-liquid separator 200, wherein the sulfuric acid and ammonium hydroxide hybrid reaction that mixing reactor 100 is used to receive
It obtains the mixed liquor containing ammonium sulfate solution and precipitate metal hydroxides and exports the mixed liquor, solid-liquid separator 200 is for receiving
The mixed liquor carries out solid-liquid separation treatment to the mixed liquor and the miscellaneous of ammonium sulfate solution and metal hydroxide-containing is discharged respectively
Matter.
The processing equipment that above-mentioned desulphurization catalyst regenerates obtained sulfuric acid by-products is typically configured is equipped with sulphur ammonium work at the same time
Section and the Chemical Manufacture of catalysis method flue gas desulfurization workshop section, processing occasion, for example it is equipped with the coking plant of catalysis method flue gas desulfurization workshop section
Deng.Wherein, catalysis method flue gas desulfurization workshop section generally comprises desulfurizing tower and catalyst circulation spray regenerative system.
The general structure of desulfurizing tower are as follows: including tower body, desulphurization catalyst is equipped in tower body, the catalyst is a kind of main
By the way that the sulfur dioxide in flue gas is catalytically conveted to sulfuric acid to realize the catalyst of flue gas desulfurization, described urge is located on tower body
The lower section of agent is equipped with smoke inlet, is equipped with exhanst gas outlet positioned at the top of the catalyst.
Catalyst circulation sprays regenerative system general structure are as follows: including being set to the spray in tower body and being located above catalyst
It drenches device and provides the reservoir of regenerated liquid for spray thrower, reservoir connect to be formed with spray thrower and tower body bottom respectively can make to regenerate
The circulatory system of liquid shuttling movement, is equipped in the circulatory system to flow for regenerated liquid and provides the pump of power.
The operational process of catalysis method flue gas desulfurization workshop section can be described as: flue gas enters desulfurizing tower and pass through from smoke inlet urges
Agent, during this, sulfur dioxide, water, oxygen in flue gas are attracted to the upper of catalyst and the catalysis in active component
It reacts under effect and generates sulfuric acid, desulfurizing tower is discharged from exhanst gas outlet in the flue gas after desulfurization；When the sulfuric acid adhered on catalyst
After reaching a certain level, dilute sulfuric acid and/or water is used to carry out circulated sprinkling to the catalyst as regenerated liquid in catalyst
The sulfuric acid of upper removal attachment simultaneously discharges catalyst activity position.Regenerated liquid (dilute sulfuric acid) after use is re-used as sulfuric acid by-products storage
In reservoir.
Catalyst circulation spray regenerative system is preferably configured to catalyst step circulated sprinkling regenerative system.Catalyst step
Circulated sprinkling regenerative system is able to use the dilute sulfuric acid (afterbody regenerated liquid is generally water) of concentration from high to low successively to urging
Agent carries out the circulated sprinkling regular hour, and the regenerated liquid of each circulated sprinkling enters in independent reservoir.
Step series is generally set as 3-4 grades.Such as when step series is set as 3 grades, the regeneration of first order circulated sprinkling
Liquid be the higher dilute sulfuric acid of concentration, second level circulated sprinkling regenerated liquid be the lower dilute sulfuric acid of concentration, afterbody regenerated liquid
For water.
Catalyst step circulated sprinkling regenerative system is preferable to catalyst regeneration effect, and can obtain a part of concentration
Higher dilute sulfuric acid, consequently facilitating to the carry out later use of the higher dilute sulfuric acid of this moiety concentrations.
The catalyst mainly includes absorbent charcoal based catalyst (active component is added on the basis of active carbon), active carbon
Fiber base catalyst (active component is added on the basis of activated carbon fibre) etc..The principle of such catalyst is: in flue gas
Sulfur dioxide, water, oxygen, which are adsorbed on a catalyst and react under the catalytic action of active component, generates sulfuric acid.It is such
The specific ingredient and manufacturing method of catalyst are the prior arts, therefore details are not described herein.Use the flue gas desulfurization of such catalyst
Technology is commonly referred to as catalysis method flue gas desulfurization technique.
In addition to above-mentioned catalysis method flue gas desulfurization technique, desulfurization of flue gas by adsorption technology technology is using conducts such as conventional activated carbon/cokes
Adsorbent simultaneously realizes desulfurization by adsorbing the sulfur dioxide in flue gas.In general, also having one in the sulfur dioxide being adsorbed
It is partially converted into sulfuric acid, therefore, after adsorbent saturation other than using conventional hot recycling mode, this explanation also can be used
The above-mentioned regeneration method to desulphurization catalyst of book regenerates adsorbent, at this moment, the catalysis in adsorbent and the utility model
Agent be it is equivalent, i.e., the protection scope of the utility model is also belonged to the processing of the obtained sulfuric acid by-products of the adsorbent reactivation.
When the processing equipment that above-mentioned desulphurization catalyst regenerates obtained sulfuric acid by-products is configured in while being equipped with ammonium sulfate workshop section
When with the Chemical Manufacture of catalysis method flue gas desulfurization workshop section, processing occasion, the source of supply of the ammonium hydroxide can come from ammonium sulfate workshop section, and
On the solid-liquid separator 200 ammonium sulfate workshop section can be connected to by pipeline for the outlet of ammonium sulfate solution to be discharged.In this way, allowing for
The flexible utilization of material is realized between catalysis method flue gas desulfurization workshop section and ammonium sulfate workshop section.
When catalysis method flue gas desulfurization workshop section includes catalyst circulation spray regenerative system, above-mentioned desulphurization catalyst regenerates institute
Obtain the sulfuric acid of the processing equipment of sulfuric acid by-products source of supply Ah can be catalyst circulation spray regenerative system in reservoir.
And when catalyst circulation spray regenerative system is selected as catalyst step circulated sprinkling regenerative system, above-mentioned desulfurization
The source of supply of the sulfuric acid of the processing equipment of the obtained sulfuric acid by-products of catalyst regeneration is preferably the regeneration of catalyst step circulated sprinkling
For storing the reservoir of the highest sulfuric acid of concentration in system, to improve the production efficiency of sulphur ammonium.
It, generally can will be described in order to be sufficiently precipitated in the impurity such as sulfuric acid and the iron, the aluminium that make in sulfuric acid when ammonium hydroxide hybrid reaction
The pH value control of mixed liquor after sulfuric acid and ammonium hydroxide are sufficiently mixed is 9-11, is preferably controlled to 9-10, more preferably control is 9.5-
10。
And in order to more accurately control the pH value of the mixed liquor after the sulfuric acid and ammonium hydroxide are sufficiently mixed, it needs mixed to entering
The ratio of the sulfuric acid and ammonium hydroxide that close reactor 100 is controlled.
By the sulfuric acid concentration that desulphurization catalyst regenerates obtained sulfuric acid by-products be not stablize always it is constant, so if
The pH stable of mixed liquor after maintaining sulfuric acid described in mixing reactor 100 and ammonium hydroxide to be sufficiently mixed, it is necessary to entrance
The sulfuric acid of mixing reactor 100 and the ratio of ammonium hydroxide are accurately adjusted.
Therefore, as shown in Figure 1, the utility model desulphurization catalyst regenerates one of the processing equipment of obtained sulfuric acid by-products
In embodiment, connected between the mixing reactor 100 and the source of supply 310 of the sulfuric acid by vitriolic acid flux control unit 110
It connects, the vitriolic acid flux control unit 110 includes signal detecting part and flow control executing agency 111, the signal detecting part
Including the first signal detecting part for tentatively being controlled the sulfuric acid amount for entering mixing reactor 100 and for mixed to entering
The second signal test section that the sulfuric acid amount of 100 devices of reaction is accurately controlled is closed, first signal detecting part is mixed to be set to
The flow sensor 112 between reactor 100 and the source of supply of the sulfuric acid is closed, the second signal test section is mixed to be set to
Close the pH sensor 113 in reactor, the flow sensor 112 and pH sensor 113 mix instead with being set to respectively
111 signal of flow control executing agency between device 100 and the source of supply 310 of the sulfuric acid is answered to connect.
In addition, then passing through ammonia between the mixing reactor 100 and the source of supply 320 of the ammonium hydroxide in above-described embodiment
Water flow control unit 120 connects, and the ammonium hydroxide flow control component 120 includes signal detecting part and flow control executing agency
121, the signal detecting part includes that the first signal for tentatively being controlled the ammonia vol for entering mixing reactor 100 is examined
Survey portion and the second signal test section accurately controlled for the ammonia vol to entrance mixing reactor 100, first letter
Number test section is the flow sensor 122 being set between mixing reactor 100 and the source of supply 320 of the ammonium hydroxide, described
Binary signal test section is the pH sensor 123 being set in mixing reactor, the flow sensor 122 and pH sensor
123 believe with the flow control executing agency 121 being set between mixing reactor 100 and the source of supply 320 of the ammonium hydroxide respectively
Number connection.
The flow control executing agency 111 of above-mentioned vitriolic acid flux control unit 110 and the stream of ammonium hydroxide flow control component 120
Amount control executing agency 121 generally realizes flow control by valve.
The flow sensor 112 of above-mentioned vitriolic acid flux control unit 110 and the flow sensing of ammonium hydroxide flow control component 120
Device 122 can use existing various flow rate sensor, and details are not described herein.
The pH sensor 113 of above-mentioned vitriolic acid flux control unit 110 and the pH value of ammonium hydroxide flow control component 120 sense
Device 123 can be same device, be also possible to different devices.
Based on above-mentioned vitriolic acid flux control unit 110 and ammonium hydroxide flow control component 120, pass through the source of supply 310 of sulfuric acid
It, can be first with above-mentioned vitriolic acid flux control unit 110 when with the source of supply 320 of ammonium hydroxide to 100 transferring raw material of mixing reactor
Flow sensor 112 detection signal come adjust flow control executing agency 111 to enter mixing reactor 100 sulphur
Acid amount is tentatively controlled, and adjusts flow using the detection signal of the flow sensor of ammonium hydroxide flow control component 120 122
Control executing agency 121 is to tentatively control the ammonia vol for entering mixing reactor 100；When sulfuric acid and ammonium hydroxide are sufficiently mixed
The pH value of mixed liquor after being sufficiently mixed after conjunction further according to sulfuric acid and ammonium hydroxide further adjusts vitriolic acid flux control unit 110
Flow control executing agency 111 or the flow control executing agency 121 of ammonium hydroxide flow control component 120 finally ensure described mixed
The pH value for closing liquid reaches setting numerical value.
Settable at least two mixing of processing equipment that the utility model desulphurization catalyst regenerates obtained sulfuric acid by-products is anti-
Device 100 is answered, and mixed liquor meshingly can be exported to same solid-liquid separator 200 between at least two mixing reactor 100,
In this way, when can save only one mixing reactor 100 to the mixing reactor 100 after each output mixed liquor to next
Waiting time when secondary output mixed liquor.
As shown in Figure 1, regenerating a reality of the processing equipment of obtained sulfuric acid by-products in the utility model desulphurization catalyst
It applies in example, setting is there are two mixing reactor 100, and each mixing reactor 100 in the two mixing reactors 100 is respectively and together
It is connected between one solid-liquid separator 200 by mixed liquor flow control component 130；One in the two mixing reactors 100
It is hindered between a mixing reactor 100 and the same solid-liquid separator 200 by corresponding mixed liquor flow control component 130
When disconnected/conducting, another mixing reactor 100 then mixes liquid stream by corresponding between the same solid-liquid separator 200
Amount control unit is simultaneously turned on/is blocked.
In this way, will be continual to the same solid-liquid point by rotation each other between the two mixing reactors 100
Mixed liquor is provided from device 200.
For the ease of passing through the impurity of metal hydroxide-containing caused by solid-liquid separation treatment to solid-liquid separator 200
Processing, the utility model desulphurization catalyst regenerate the processing equipment of obtained sulfuric acid by-products also further by the separation of solid and liquid
Device 200 or on solid-liquid separator 200 for be discharged metal hydroxide-containing impurity outlet connection impurity treatment device 400
It is connect between the source of supply 310 of the sulfuric acid by flow control component 410, the flow control component 410 includes signal
Test section and flow control executing agency 412, the signal detecting part include being set to solid-liquid separator 200 or impurity treatment device
PH sensor 411 in 400, the pH sensor 411 be set to solid-liquid separator 200 or impurity treatment device 400 with
412 signal of flow control executing agency connection between the source of supply 310 of the sulfuric acid.
As shown in Figure 1, regenerating a reality of the processing equipment of obtained sulfuric acid by-products in the utility model desulphurization catalyst
It applies in example, for the outlet connection impurity treatment device of the impurity of metal hydroxide-containing to be discharged on the solid-liquid separator 200
400, the agitating device being stirred to substance therein, impurity treatment device 400 and institute are provided on the impurity treatment device 400
It states and is connected between the source of supply 310 of sulfuric acid by flow control component 410, the signal detecting part of flow control component 410 includes
The pH sensor 411 being set in impurity treatment device 400, the pH sensor 411 be set to impurity treatment device 400 with
412 signal of flow control executing agency connection between the source of supply 310 of the sulfuric acid.
Above-mentioned impurity treatment device 400 by the impurity of received sulfuric acid and metal hydroxide-containing in mixing and carrying out
And reaction, and tail washings is discharged after metal hydroxides reaction dissolution.Adding for sulfuric acid is controlled by pH sensor 411
Enter amount, tail washings can be made to reach subsequent sewage treatment requirement.
It is described in one embodiment that the utility model desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products
Mixing reactor 100 uses the mixing reactor with agitating device；Solid-liquid separator 200 then uses plate centrifuge (such as
Fig. 1, plate centrifuge with can rotating mechanism drive under high-speed rotating internal rotating component 210).
Above-described embodiment of the processing equipment of obtained sulfuric acid by-products is regenerated below with reference to the utility model desulphurization catalyst,
The embodiment for regenerating the processing method of obtained sulfuric acid by-products to the utility model desulphurization catalyst is illustrated.
The embodiment that the utility model desulphurization catalyst regenerates the processing method of obtained sulfuric acid by-products includes:
(1) sulfuric acid and ammonium hydroxide are separately added into mixing reactor 100
Sulfuric acid regenerates obtained sulfuric acid by-products from desulphurization catalyst, more specifically comes autocatalytic method flue gas desulfurization workshop section
Catalyst step circulated sprinkling regenerative system in for storing the liquid storage of the highest sulfuric acid (mass concentration 5-15%) of concentration
Slot.
Sulfuric acid enters mixing reactor 100 by vitriolic acid flux control unit 110, and inlet passes through vitriolic acid flux control unit
The flow information detected of flow sensor 112 of part 110 and time are calculated.When inlet reaches given threshold, sulphur
The flow control executing agency 111 of sour flow control component 110 will block the supply of sulfuric acid.
(mass fraction is generally 5-20% to ammonium hydroxide, is fixed as herein 10%) from ammonium sulfate workshop section.Ammonium hydroxide passes through ammonia aqua stream
It measures control unit 120 and enters mixing reactor 100, inlet passes through 122 institute of flow sensor of ammonium hydroxide flow control component 120
The flow information of detection and time are calculated.When inlet reaches given threshold, the flow of ammonium hydroxide flow control component 120
Control executing agency 121 will block the supply of ammonium hydroxide.
Hereafter, by pH sensor 113, (pH sensor 113 and pH sensor 123 are same dress in this embodiment
Set) control flow control executing agency 111 and the ammonium hydroxide flow control component 120 of vitriolic acid flux control unit 110 respectively
Flow control executing agency 121, i.e., the pH value detected when pH sensor 113 is lower than the control of given threshold season ammonium hydroxide flow
The flow control executing agency 121 of component 120 processed is connected, when the pH value that pH sensor 113 detects is higher than given threshold
The flow control executing agency 111 of vitriolic acid flux control unit 110 is enabled to be connected.
The agitating device continuous running of mixing reactor 100 in the above process.
After the pH value that pH sensor 113 detects reaches setting condition, the completion of the sulfuric acid and ammonium hydroxide is mixed and anti-
It should obtain the process of the mixed liquor containing ammonium sulfate solution and precipitate metal hydroxides.
(2) by mixed liquor be delivered to solid-liquid separator 200 carry out solid-liquid separation treatment and respectively obtain ammonium sulfate solution and
The impurity of metal hydroxide-containing.
Solid-liquid separator 200 uses plate centrifuge, after mixed liquor enters plate centrifuge, in internal rotating member
The solid kinds such as precipitate metal hydroxides under 210 promotion in mixed liquor impurity is assembled to the inner wall of plate centrifuge, and sulphur
Ammonium salt solution then flows out to ammonium sulfate workshop section from the bottom of plate centrifuge.
The solid kinds such as precipitate metal hydroxides inside plate centrifuge impurities accumulation to a certain extent, can be by these
Solid kind impurity is discharged into impurity treatment device 400 after smashing pine.
(3) impurity treatment
The impurity of received sulfuric acid and metal hydroxide-containing is mixed and is carried out neutralization reaction by impurity treatment device 400,
And tail washings is discharged after metal hydroxides reaction dissolution.The additional amount that sulfuric acid is controlled by pH sensor 411, can
The pH value of tail washings is set to reach subsequent sewage treatment requirement.
Relevant parameter using the embodiment 1-3 of the above method is as shown in table 1.
Table 1
The related content of the utility model is illustrated above.Those of ordinary skill in the art are being based on these explanations
In the case where will realize the utility model.Above content based on the utility model, those of ordinary skill in the art are not having
Every other preferred embodiment and embodiment obtained under the premise of creative work are made, all should belong to practical
Novel protected range.
Claims (10)
1. the processing equipment that desulphurization catalyst regenerates obtained sulfuric acid by-products characterized by comprising mixing reactor is used for
The sulfuric acid received and ammonium hydroxide hybrid reaction are obtained into the mixed liquor containing ammonium sulfate solution and precipitate metal hydroxides and defeated
The mixed liquor out；Solid-liquid separator, for receiving the mixed liquor, solid-liquid separation treatment and be discharged respectively to the mixed liquor
The impurity of ammonium sulfate solution and metal hydroxide-containing.
2. equipment as described in claim 1, it is characterised in that: lead between the mixing reactor and the source of supply of the sulfuric acid
The connection of persulfuric acid flow control component, the vitriolic acid flux control unit includes signal detecting part and flow control executing agency,
The signal detecting part include for enter the first signal detecting part for tentatively being controlled of sulfuric acid amount of mixing reactor with
Second signal test section for accurately being controlled the sulfuric acid amount for entering mixing reactor, first signal detecting part are
The flow sensor being set between mixing reactor and the source of supply of the sulfuric acid, the second signal test section are to be set to
PH sensor in mixing reactor, the flow sensor and pH sensor respectively be set to mixing reactor and institute
State the flow control operator signals connection between the source of supply of sulfuric acid；The source of supply of the mixing reactor and the ammonium hydroxide
Between connected by ammonium hydroxide flow control component, the ammonium hydroxide flow control component includes that signal detecting part and flow control execute
Mechanism, the signal detecting part include the first signal detection for tentatively being controlled the ammonia vol for entering mixing reactor
Portion and the second signal test section accurately controlled for the ammonia vol to entrance mixing reactor, first signal detection
Portion is the flow sensor being set between mixing reactor and the source of supply of the ammonium hydroxide, and the second signal test section is to set
The pH sensor being placed in mixing reactor, the flow sensor and pH sensor respectively be set to mixing reactor
Flow control operator signals between the source of supply of the ammonium hydroxide are connect.
3. equipment as described in claim 1, it is characterised in that: the source of supply of the sulfuric acid is catalyst step circulation spray
For storing the reservoir of the highest sulfuric acid of concentration in leaching regenerative system.
4. equipment as described in claim 1, it is characterised in that: the source of supply of the ammonium hydroxide comes from ammonium sulfate workshop section；The solid-liquid
Ammonium sulfate workshop section is connected to by pipeline for the outlet of ammonium sulfate solution to be discharged on separator.
5. equipment as described in claim 1, it is characterised in that: the mixing reactor is a kind of mixing with agitating device
Reactor.
6. the equipment as described in any one of claim 1 to 5 claim, it is characterised in that: at least two mixing of setting
Reactor meshingly can export mixed liquor to same solid-liquid separator between at least two mixing reactor.
7. equipment as claimed in claim 6, it is characterised in that: each mixing reactor at least two mixing reactor
It is connect between same solid-liquid separator by mixed liquor flow control component respectively；When at least two mixing reactor
A mixing reactor and the same solid-liquid separator between pass through corresponding mixed liquor flow control component blocking/conducting
When, it is led simultaneously between another mixing reactor and the same solid-liquid separator by corresponding mixed liquor flow control component
It is logical/to block.
8. the equipment as described in any one of claim 1 to 5 claim, it is characterised in that: the solid-liquid separator is adopted
Use plate centrifuge.
9. the equipment as described in any one of claim 1 to 5 claim, it is characterised in that: the solid-liquid separator or
With the impurity treatment device and the sulfuric acid of the outlet connection of the impurity on solid-liquid separator for metal hydroxide-containing to be discharged
It is connected between source of supply by flow control component, the flow control component includes that signal detecting part and flow control execute machine
Structure, the signal detecting part include the pH sensor being set in solid-liquid separator or impurity treatment device, the pH value sensing
Device and the flow control operator signals being set between solid-liquid separator or impurity treatment device and the source of supply of the sulfuric acid
Connection.
10. equipment as claimed in claim 9, it is characterised in that: be provided on the impurity treatment device to substance therein into
The agitating device of row stirring.
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|---|---|---|---|
| CN201821909669.2U CN209507606U (en) | 2018-11-20 | 2018-11-20 | Desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909669.2U CN209507606U (en) | 2018-11-20 | 2018-11-20 | Desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products |
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| CN209507606U true CN209507606U (en) | 2019-10-18 |
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| CN201821909669.2U Active CN209507606U (en) | 2018-11-20 | 2018-11-20 | Desulphurization catalyst regenerates the processing equipment of obtained sulfuric acid by-products |
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2018
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Denomination of utility model: Treatment equipment for by product of sulfuric acid from regeneration of desulfurization catalyst Effective date of registration: 20210508 Granted publication date: 20191018 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd. Chinese Sichuan Pledgor: CHENGDU DAQI ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Registration number: Y2021980003363 |
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Date of cancellation: 20220527 Granted publication date: 20191018 Pledgee: The Agricultural Bank of Chengdu branch of Limited by Share Ltd. Chinese Sichuan Pledgor: CHENGDU DAQI ENVIRONMENTAL TECHNOLOGY CO.,LTD. Registration number: Y2021980003363 |
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Address after: 610000 room 3502, 35 / F, unit 1, building 1, No. 89 Cuihua Road, No. 99 Jitai 1st Street, No. 108 Shenghua Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan Patentee after: Chengdu Daqi Technology Co.,Ltd. Address before: No. 3203, 32F, building 2, No. 69, Ronghua North Road, high tech Zone, Chengdu, Sichuan 610000 Patentee before: CHENGDU DAQI ENVIRONMENTAL TECHNOLOGY CO.,LTD. |