CN102502529A - Automatic control temperature-regulating acid-regulating water-regulating system in drying absorption contact sulfuric acid production - Google Patents
Automatic control temperature-regulating acid-regulating water-regulating system in drying absorption contact sulfuric acid production Download PDFInfo
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Abstract
The invention relates to an automatic control temperature-regulating acid-regulating water-regulating system in drying absorption contact sulfuric acid production, which comprises a drying acid bin, a first acid absorption bin, a second acid absorption bin, a drying acid cooling tube, a first acid absorption cooling coil, a second acid absorption cooling coil, a cooling spray header and a data table or a self-actuated computer program controller, wherein, a hand-operated gate valve is arranged between the drying acid bin and the first acid absorption bin; a drying acid cooling coil connected with a drying tower is arranged at a feed opening of the drying acid bin; a drying acid branch pipe communicated with material in the first acid absorption bin is arranged on the drying acid cooling coil; and the data table or the self-actuated computer program controller is connected with an electronic box relay. The automatic control temperature-regulating acid-regulating water-regulating system can increase the sulfuric acid output by about 10 percent, not only increases the economic benefits but also reduces the difficulty of tail gas treatment, and reduces the alkali consumption amount in tail gas treatment; possible environment pollution is reduced; in addition, the extent of injury on operators suffering from occupational diseases can be reduced, particularly, the injury caused by heavy metal Hg and gaseous sulfur trioxide on human bodies can be reduced.
Description
Technical field
The present invention relates to the automatic control temperature adjustment acid adjustment water transfer system of a kind of dried suction contact acid in producing.
Background technology
For a long time, the sour gentle acid concentration of the moving regulation and control of the dried suction of China, the full armrest of contact acid production both inaccurately also can influence sulphuric acid output because of human factor, cause the environmental protection accident, and system's structure is unreasonable.
Summary of the invention
The object of the present invention is to provide the automatic control temperature adjustment acid adjustment water transfer system of a kind of dried suction contact acid rational in infrastructure, that can control temperature adjustment acid adjustment water transfer automatically in producing.
The object of the invention is realized through following technical scheme: it comprises dry sour village, the sour village of a suction, two suction acid villages, dry sour cooling tube, the sour cooling coil of a suction, two suction sour cooling coil, chilling spray water pipe and data sheet or computer program two-position controllers; Between a described dry acid village and a suction acid village, be provided with hand sluice valve, the opening for feed of collecing in dry acid is provided with the dry sour cooling coil that links to each other with drying tower, on the sour cooling coil of drying, is provided with one to inhale the dry sour take-off pipe that the material in the acid village is connected; One inhale the acid village opening for feed be provided with one and inhale the tower sour cooling coil of a suction that links to each other; Described one inhale sour cooling coil be provided with can be in dry acid village the sour take-off pipe of a suction of discharges material; Inhale the sour opening for feed of collecing said two and be provided with the sour cooling coil of two suctions that links to each other with two suction towers; Inhaling acid village and two one inhales and also is respectively equipped with a suction acid concentration regulating tube and the two suction acid concentration regulating tubes that link to each other with running water pipe on the acid village; The chilling spray water pipe is inhaled sour cooling coil, two to the sour cooling tube of drying, respectively and is inhaled sour cooling coil spraying cooling water; Inhale sour cooling coil, two at the sour cooling tube of described drying, and inhale and be respectively equipped with the dry sour temperature inductor block, that is used to detect respective acids village discharging acid temperature on the pipe near place, respective acids village of sour cooling coil and inhale sour temperature inductor block, two and inhale sour temperature inductor block, inhale acid village, two in described dry acid village, and inhale on the village wall that acid collects respectively that correspondence is provided with dry acid concentration inductor block, a suction acid concentration inductor block, two suction acid concentration inductor blocks; On the wall in dry acid village, also be provided with dry acid solution face height positioning inductor, on the chilling spray water pipe, be provided with water transfer control SV; Described data sheet or computer program two-position controller are connected with the electronic box rly.; The sour temperature inductor block of described drying, the sour temperature inductor block of a suction, the sour temperature inductor block of two suctions, dry acid concentration inductor block, a suction acid concentration inductor block, two are inhaled the acid concentration inductor blocks, dry acid solution face height positioning inductor is connected with computer program two-position controller or data sheet two-position controller respectively, and described water transfer control SV is connected with the electronic box rly. respectively.
Advantage of the present invention: adopt data sheet automatic control or computer program automatically temperature adjustment, acid adjustment, the water transfer system of control can increase sulphuric acid output about 10%, not only increased economic benefit but also alleviated the difficulty of vent gas treatment, reduce the consumption of alkali in the vent gas treatment; Reduce possible environmental pollution; Reduced the harm of hazard rating, especially heavy metal Hg that the operative employee suffers from occupational illness and sulfur trioxide gas to human body; This system is to lead sulfide, zinc sulphide, copper, iron and use the production of the dried suction of sulphur production vitriolic contact process to use.
Prove in the experiment that one inhales sour temperature control should be controlled between the 98.10%-98.20% to the best acid concentration of the assimilation effect of SO3 in the time of 45 ℃-50 ℃; Two inhale sour temperature should be controlled at 35 ℃-40 ℃.Assimilation effect is best during acid concentration 98.20%-98.30%; Effect was best when 35 ℃ of-40 ℃ of acid concentrations of dry acid acid temperature absorbed the water vapour in SO2, O2, the N2 mixed gas when being controlled at 93.80%-94.2%.But acid is inhaled concentration and is difficult to control often, in theory SO3 ()+H2O (I)=H2SO4 (I)+▲ H=-130.3KJ/mol0.Inhaling acid with one is example; The sulfuric acid water diversion volume that to produce one ton of concentration be 98.10%-98.20% approximates 198.37-199.18kg for [1000 * (1-98.1)/100+981 * (18/98)] to [1000 * (1-98.2)/100+982 * (18/98)], and the difference of two numbers is 0.81kg water only.Be difficult to control.It emits the heat of about 130.3 * 10010.2KJ simultaneously, needs a large amount of water coolants to inhale sour comb to one and cools off, when regulating sulfuric acid concentration, owing to increase or reduced the water diversion volume in the sour village.Make that the vitriolic assimilation effect is different and cause the unbalanced fluctuation of a large amount of heats of emitting when SO3 gas is absorbed and cause the rapid fluctuation of acid temperature; Both whiles (both are meant sulfuric acid concentration and acid temperature) influence the assimilation effect of sulfuric acid to SO3 gas; So in doing suction, contact acid production, require to regulate sour Wen Yaowen; Regulating water diversion volume, the acid adjustment amount (dry sour acid concentration is to go into the dry sour sour flow of collecing by adjusting one inspiration to carry out) of acid concentration also wants surely; The front is talked about, and the control fluctuation range of the sour water diversion volume of ton of the optimal absorption effect of a suction acid is 0.81kg water only.Do not have to stablize the link of each temperature adjustment of control, water transfer, acid adjustment, cause a large amount of harmful SO3 gas to diffuse among atmosphere easily, cause environmental pollution.Adopt data sheet automatic control or the temperature adjustment of computer program self-acting control, acid adjustment, water transfer system then can solve existing acid temperature, sour fluctuation problem of inhaling concentration in above-mentioned dried suction, the contact acid production easily.Make to be controlled at absorption region of a best and so in the gas washing in SA production, reduce the fluctuating factor in the operation.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present invention.
Fig. 2 is the structural representation of dry acid concentration acid adjustment unit R4.
Fig. 3 is the structural representation of dry acid solution face height controller R13.
Fig. 4 is the structural representation of a suction acid concentration water transfer unit R5.
Label declaration: acid village, 4 dry sour cooling tubes, the sour cooling coil of 5 one suctions, the sour cooling coil of 6 two suctions, 7-1,7-2,7-3 chilling spray water pipe, 8 data sheet or computer program two-position controller are inhaled in 1 dry acid village, the sour village of 2 one suctions, 3 two, 9 electronic box rly.s, 10 1 are inhaled acid concentration regulating tube and two and inhaled acid concentration regulating tube, 11 acid adjustment concentration ponds, 12 acid adjustment liquid level ponds, 13 water transfer controlling boxs.
The dry sour temperature water transfer control SV of R1, R2 one inhale sour temperature water transfer control SV,
R3 two inhale sour temperature water transfer control SV, the dry acid concentration acid adjustment of R4 unit,
R5 one inhale sour acid concentration water transfer unit, R6 two inhale sour acid concentration water transfer unit,
The dry sour temperature inductor block of R7, the sour temperature inductor block of R8 one suction,
R9 two inhale sour temperature inductor block, R10 drying acid concentration inductor block,
R11 one inhale acid concentration inductor block, R12 two inhale the acid concentration inductor blocks,
The dry acid solution face height controller (acid adjustment) of R13, R14 hand sluice valve,
The dry acid solution face of R15 height positioning inductor, R16 warning howler;
A1 often open master control SV, A2 secondary control SV, A3 water clock SV, A4 hand sluice valve,
A5 often open control sour SV, the control of A6 secondary control acid SV, A7 hand sluice valve,
A8 often open water transfer SV, A9 secondary control water transfer SV, A10 water clock water transfer SV,
A11 manually controls water transfer valve, A12 water transfer case tank level control ball float (valve).
Embodiment
Below in conjunction with Figure of description and embodiment content of the present invention is elaborated:
Shown in Fig. 1-4; Automatic control temperature adjustment acid adjustment water transfer system during a kind of dried suction contact acid is produced is characterized in that: it comprises that dry acid village 1, inhales acid village 2, two and inhale acid village 3, dry sour cooling tube 4, and inhale sour cooling coil 5, two and inhale sour cooling coil 6, chilling spray water pipe 7 and computer program two-position controller or data sheet two-position controller 8; It also comprises electronic box rly. 9.Between a described dry acid village 1 and a described suction acid village 2, be provided with hand sluice valve R14; Opening for feed in dry acid village 1 is provided with the dry sour cooling coil 4 that links to each other with drying tower; On the sour cooling coil 4 of drying, be provided with one and inhale the dry sour take-off pipe that the material in the acid village 2 is connected, on the sour take-off pipe of drying, be provided with dry acid solution face height controller R13; One inhale acid village 2 opening for feed be provided with one and inhale the tower sour cooling coil 5 of a suction that links to each other; Does is whether described one inhales sour cooling coil 5 provided with and (describe correct to dry acid village discharges material?) one inhale sour take-off pipe, inhale on the sour take-off pipe described one and be provided with dry acid concentration acid adjustment unit R4; Inhale the sour opening for feed of collecing said two and be provided with the sour cooling coil 6 of two suctions that links to each other with two suction towers; Also be provided with can collecing and a sour suction acid concentration and the two suction acid concentration regulating tubes 10 that supply water of collecing of two suctions to a suction acid respectively of linking to each other with running water pipe on 3 in sour village 2 of a suction and sour village of two suctions; The water outlet place, a suction acid village that is positioned at of inhaling acid concentration regulating tubes 10 in a described suction acid concentration and two is provided with a suction acid concentration unit R5; The water outlet place, two suction acid villages that is positioned at of inhaling acid concentration regulating tubes 10 in a described suction acid concentration and two is provided with two suction acid concentration unit R6, inhales on the acid concentration unit R5 described one also to be provided with warning howler R16; Chilling spray water pipe 7-1,7-2,7-3 inhale sour cooling coil 5, two to the sour cooling coil 4, of drying respectively and inhale sour cooling coil 6 spraying cooling water; Inhaling sour cooling coil, two at the sour cooling coil of described drying, inhales and is respectively equipped with the dry sour temperature inductor block R7, that is used to detect respective acids village discharging acid temperature on the pipe near place, respective acids village of sour cooling coil and inhales sour temperature inductor block R8, the sour temperature inductor block R9 of two suctions; Inhale in described dry acid village, and to be respectively equipped with dry acid concentration inductor block R10, on the village wall of inhaling the acid village in acid village, two and to inhale acid concentration inductor block R11, two and inhale acid concentration inductor block R12; On the wall that dry acid is collectd, also be provided with dry acid solution face height positioning inductor R15, inhale sour temperature water transfer control SV R2, the sour temperature water transfer control of two suctions SV R3 at chilling spray water pipe 7-1,7-2, the last dry sour temperature water transfer control SV R1, that is respectively equipped with of 7-3; Described data sheet or computer program two-position controller 8 are connected 9 with the electronic box rly.; Described R7-R12 and R15 are connected with computer program two-position controller or data sheet two-position controller 8 respectively, and described R1-R6, R13, R16 are connected with electronic box rly. 9 respectively.
Described data sheet refers to the water yield, temperature, measuring acid concentration table.
Described data sheet or computer program two-position controller 8 are meant and can control automatically without computer program, and the employing data sheet is controlled automatically.
As shown in Figure 2, described dry acid concentration acid adjustment unit R4 is made up of acid adjustment concentration pond 11 and acid adjustment consistency controller.Described acid adjustment consistency controller comprises often opens master control SV A1, secondary control SV A2, water clock SV A3, hand sluice valve A4; Connect an end of often opening master control SV A1, secondary control SV A2, water clock SV A3, hand sluice valve A4 on the described acid adjustment concentration pond respectively; The other end of often opening master control SV A1, secondary control SV A2, water clock SV A3, hand sluice valve A4 connects the pipeline that material is flowed into dry acid village.
As shown in Figure 3, described dry acid solution face height controller R13 is made up of acid adjustment liquid level pond 12 and acid adjustment LLC, and described acid adjustment LLC comprises often opens the sour SV A5 of control, secondary control control acid SV A6, hand sluice valve A7; Connect an end of often opening the sour SV A5 of control, secondary control control acid SV A6, hand sluice valve A7 on the described acid adjustment liquid level pond respectively; The other end of often opening the sour SV A5 of control, secondary control control acid SV A6, hand sluice valve A7 connects the pipeline that can material be flowed into a suction acid village, also is provided with on the described dry acid solution face height controller R13 and leads to the pipeline that dry acid is collectd.
As shown in Figure 4; Described one inhales acid concentration water transfer unit R5 is made up of water transfer controlling box 13 and water transfer unit, and described water transfer unit comprises often to be opened water transfer SV A8, secondary control water transfer SV A9, water clock water transfer SV A10, manually control water transfer valve A11, water transfer case tank level control ball float (valve) A12; Connect respectively on the described water transfer controlling box and often open water transfer SV A8, secondary control water transfer SV A9, water clock water transfer SV A10, manually control water transfer valve A11; The other end of often open water transfer SV A8, secondary control water transfer SV A9, water clock water transfer SV A10, manually controlling water transfer valve A11 connects and can water be flowed into one and inhale the pipeline in acid village, and the liquid level top of described water transfer controlling box also is provided with water transfer case tank level control ball float (valve) A12 that is connected with running water pipe.
A1-A3, A5-A6, A8-A10 and and A12 be connected with data sheet or computer program two-position controller 8.
Automatic Control Theory of the present invention is: the temperature information that (1) data sheet or computer program two-position controller collect through acid temperature inductor block R7, R8, R9 is controlled the unlatching size of R1, R2, R3 SV; Make the chilling spray water pipe spray the corresponding water yield; Reduce acid liquor temperature, thus control acid temperature.(2) the acid concentration data message that collects through acid concentration inductor block R10, R11, R12 of data sheet or computer program two-position controller comes automatically the dry acid concentration acid adjustment unit R4 of control, to inhale acid concentration water transfer unit R5, two to inhale acid concentration water transfer unit R6, thereby reach the dry acid concentration, in dry acid village is inhaled the control that acid acid village acid strength and two is inhaled the acid strength in acid acid village.(3) the acid solution face height in dry sour village is inhaled acid village acid solution face height a little more than one.The unnecessary dry acid in dry acid acid village flows into one and inhales the acid village when producing at ordinary times, when needs blowing out or other reasons need the enfleurage running, closes dry acid village and and inhales hand sluice valve R14 or the SV of acid between collecing.The dry acid solution face height dimension of collecing for the acid of keeping dry is held in the height that it is fixed that is weighed, and then should install a liquid level inductor block additional in dry acid village.Data sheet or computer program two-position controller are controlled sour village of acid inflow one suction that the acid adjustment control section on the dry sour time acid tube flows back to the sour village of drying automatically through this inductor block, make the sour acidic group of collecing of drying originally be in a scope that weighing apparatus is fixed.(4) when running into the time variable control scope that the feasible acid of fault or other human factors is warm, acid strength surpasses data sheet or the computer program two-position controller is set, data sheet or computer program two-position controller send guard signal through warning howler R16.(5) temperature adjustment, acid adjustment, the automatic control of water transfer are provided with manual control device simultaneously, but in case reasons such as line fault manual operation when causing fault.
In conjunction with Fig. 1-Fig. 4, the technological process of acid adjustment of the present invention, water transfer, thermoregulated automatic control is explained in detail as follows:
(1) weighing apparatus of temperature adjustment, acid adjustment and the liquid level in the sour village of dry acid is fixed
(1) after dry sour temperature inductor block R7 passes to induced signal data sheet or computer program two-position controller 8; Data sheet or computer program two-position controller are given dry sour temperature water transfer control SV R1 according to signal output wave, make the sour temperature of dry acid remain at 38 ℃.When the acid temperature surpasses 39 ℃; Data sheet or computer program two-position controller output signal make the R1 valve opening solenoid big; Strengthen the cool water shower amount; When sour temperature was lower than 36 ℃, the R1 SV opened smaller automatically or cuts out other SV, under data sheet or computer program two-position controller program setting, realized control automatically.
(2) dry acid concentration leans on one to inhale the vitriol oil control more than 98.20% that acid is collectd.Its acid adjustment device control unit is as shown in Figure 2:
When concentration is the dry sour after drying tower has absorbed thinning the releasing of water vapour in the mixing raw material gas of 93.8%-94.2%; Need inhale the concentration that refluxes in the acid village from one is the additional dry acid of the vitriol oil village more than 98.20%, makes the dry acid concentration in drying acid village remain on about 94%.A1 often opens master control SV A1 and plays the major control effect.When dry acid absorbed 20kg water in 1 hour in drying tower.Then often open master control SV A1 and just be adjusted into one hour from one and inhale and flow into the 0.35 ton of vitriol oil in dry acid village the acid village (when this returned acid concentration is 98.40%), the remaining 59kg vitriol oil is controlled by secondary control SV A2 and is called in the 50kg vitriol oil.The remaining 9kg vitriol oil is by water clock SV A3 control, and secondary control or water clock SV are opened in good time or closed to data sheet or computer program two-position controller according to the dry acid concentration that collects.Concentration change became 94.20% o'clock unlatching water clock SV by 94.15% in sequence of control was provided with.Acid strength is reduced to by 94.20% and was closed water clock SV or secondary control SV at 94.10% o'clock.A4 is a hand sluice valve, is used to prevent outage and fault and establishes.
If it is same when high that the acid village is inhaled in dry acid village and; Then should install the dry acid solution face height controller R13 of a cover additional; Make the acid solution in dry acid village remain on a height that weighing apparatus is fixed; Its unit synoptic diagram is as shown in Figure 3, and the height that under dry acid solution face height controller R13 effect, remains acid solution face in this unit is in a steady state value.A5 is for often opening the sour electromagnetism liquid level of control.Liquid level based on dry acid village keeps normally open, and its adjusting aperture is slightly less than a suction acid stream and inhales the acid amount that sour return duct flows into drying acid village less than one.Remaining regulated quantity is by secondary control control acid SV A6 control (increasing amount that comprises moisture content absorption in the material mixed gas is also regulated by SV), so that the dry acid in dry acid village remains in the isostatic scope.
(2) one inhale temperature adjustment, the water transfer in acid village
(1) shown in Fig. 1-4; After R8 passes to data sheet or computer program two-position controller to a suction acid temperature through inductor block; Data sheet or computer program two-position controller are controlled the acid temperature in R2 solenoid control one suction acid village automatically in 48 ℃ scope, when the sour temperature in a suction acid village is increased to 49 ℃, strengthen or open inferior valve; When one inhales sour temperature drop to 46 ℃, reduce or close time valve.The sour temperature of one suction is remained in 46 ℃ of-49 ℃ of scopes.
(2) one inhale the sour acid strength of collecing leans on the water transfer unit to come controlling acidity.Its schematic diagram is (Fig. 4) as follows
A12 is a water transfer case tank level control ball float (valve) to guarantee the water transfer control stabilization, keeps the water yield in certain height.A8 often drives the water transfer SV, when one inhale the acid village acid concentration be 98.10%-98.20% the vitriol oil through pump pump into one inhale absorbed in the tower sulfur trioxide gas become the higher vitriol oil of concentration through flow back to after the comb water cooling one inhale the acid village after.At this moment should replenish a part of water and reduce suction acid acid concentration in the village.At this moment often drive the water transfer SV through (Fig. 4) A8 and inhale acid water transfer in the village to one; Water diversion volume is decided according to the vitriolic hourly output, suppose produced in 1 hour 1 ton of sulfuric acid calculate (get rid of dry acid village flow into one inhale the acid village dilute sulphuric acid is prerequisite) then normally open solenoid valve per hour inhale acid village water transfer 170kg to one.Remaining 28.37-29.18kg water is controlled by secondary control water transfer SV R9.Set per hour water transfer 25kg of secondary control water transfer SV R9.Remaining 3.37-4.18kg water is controlled by water clock water transfer SV A10.It is 98.15% to be changed at 98.20% o'clock that the control of data sheet or computer program is provided with acid concentration, and secondary control or water clock water transfer SV A9 or A10 open, and when acid concentration reduces to 98.12%, close A9 or A10.A11 manually controls the water transfer gate valve, uses as backup to prevent fault and other reason.
(3) two inhale temperature adjustment, the water transfer control in acid village
The water transfer in this acid village, temperature adjustment principle with one inhale temperature adjustment, the water transfer device is the same, just the concentration of acid solution should be controlled between the 98.20%-98.30%.
(4) in acid strength control, lower like the tartaric acid temperature, then can suitably improve 0.1% percentage point acid and inhale concentration.
(5) control acid adjustment, water transfer, any data of temperature adjustment are regulated and control voluntarily.
Nucleidic mass in the said sulfuric acid calculates by S:32 O:16 H:1.
Claims (4)
1. do to inhale the automatic control temperature adjustment acid adjustment water transfer system of contact acid in producing for one kind, it is characterized in that: it comprises that dry acid village (1), inhales acid village (2), two and inhale acid village (3), dry sour cooling tubes (4), one and inhale sour cooling coil (5), two and inhale sour cooling coil (6), chilling spray water pipe (7) and computer program two-position controller or data sheet two-position controllers (8); Between a dry acid village and a suction acid village, be provided with hand sluice valve, the opening for feed of collecing in dry acid is provided with the dry sour cooling coil that links to each other with drying tower, on the sour cooling coil of drying, is provided with one to inhale the dry sour take-off pipe that the material in the acid village is connected; One inhale the acid village opening for feed be provided with one and inhale the tower sour cooling coil of a suction that links to each other; Described one inhale sour cooling coil be provided with can be in dry acid village the sour take-off pipe of a suction of discharges material; Inhale the sour opening for feed of collecing said two and be provided with the sour cooling coil of two suctions that links to each other with two suction towers; Inhaling acid village and two one inhales and also is respectively equipped with a suction acid concentration regulating tube and the two suction acid concentration regulating tubes that link to each other with running water pipe on the acid village; The chilling spray water pipe is inhaled sour cooling coil, two to the sour cooling tube of drying, respectively and is inhaled sour cooling coil spraying cooling water; Inhale sour cooling coil, two at the sour cooling tube of described drying, and inhale and be respectively equipped with the dry sour temperature inductor block, that is used to detect respective acids village discharging acid temperature on the pipe near place, respective acids village of sour cooling coil and inhale sour temperature inductor block, two and inhale sour temperature inductor block, inhale acid village, two in described dry acid village, and inhale on the village wall that acid collects respectively that correspondence is provided with dry acid concentration inductor block, a suction acid concentration inductor block, two suction acid concentration inductor blocks; On the wall in dry acid village, also be provided with dry acid solution face height positioning inductor, on the chilling spray water pipe, be provided with water transfer control SV; Described data sheet or computer program two-position controller are connected with the electronic box rly.; The sour temperature inductor block of described drying, the sour temperature inductor block of a suction, the sour temperature inductor block of two suctions, dry acid concentration inductor block, a suction acid concentration inductor block, two are inhaled the acid concentration inductor blocks, dry acid solution face height positioning inductor is connected with data sheet or computer program two-position controller (8) respectively, and described water transfer control SV is connected with electronic box rly. (9) respectively.
2. the automatic control temperature adjustment acid adjustment water transfer system during dried suction contact acid according to claim 1 is produced is characterized in that: the described dry acid solution face height controller (R13) that on the sour take-off pipe of drying, is provided with; One inhale acid village (2) opening for feed be provided with one and inhale the tower suction sour cooling coil (5) that links to each other; Described one inhales sour cooling coil (5) is provided with and can inhales sour take-off pipe to one of dry acid village discharges material, inhales on the sour take-off pipe described one to be provided with dry acid concentration acid adjustment unit (R4); The water outlet place, a suction acid village that is positioned at of inhaling acid concentration regulating tubes (10) in a described suction acid concentration and two is provided with a suction acid concentration unit (R5); The water outlet place, two suction acid villages that is positioned at of inhaling acid concentration regulating tubes (10) in a described suction acid concentration and two is provided with two suction acid concentration units (R6), inhales on the acid concentration unit (R5) described one also to be provided with warning howler (R16); Described dry acid concentration acid adjustment unit (R4), a suction acid concentration unit (R5), two suction acid concentration units (R6), warning howler (R16), dry acid solution face height controller (R13) are connected with electronic box rly. (9) respectively.
3. the automatic control temperature adjustment acid adjustment water transfer system in producing based on the described dried suction contact acid of claim 1; It is characterized in that: described chilling spray water pipe is divided into dry sour chilling spray water pipe (7-1), to be inhaled sour chilling spray water pipe (7-2), two and inhales sour chilling spray water pipes (7-3), inhales sour chilling spray water pipe (7-2), two at the sour chilling spray water pipe of drying (7-1), and inhales sour chilling spray water pipes (7-3) and be respectively equipped with dry sour temperature water transfer control magnetic valve (R1), and inhale sour temperature water transfer control magnetic valve (R2), two and inhale sour temperature water transfer control magnetic valve (R3); Dry sour temperature water transfer control magnetic valve (R1), one is inhaled sour temperature water transfer control magnetic valve (R2), the two sour temperature water transfer control magnetic valves of suction (R3) link to each other with electronic box relay (9) respectively.
4. prepare automatic CONTROL PROCESS according to the described dried suction contact acid of claim 1-3, it is characterized in that: its controlled step is following:
(1) weighing apparatus of temperature adjustment, acid adjustment and the liquid level in the sour village of dry acid is fixed
(1) after dry sour temperature inductor (R7) passes to induced signal tables of data or computer program automatic controller (8); Tables of data or computer program automatic controller are given dry sour temperature water transfer control magnetic valve R1 based on signal output control signal, make the sour temperature of dry acid remain at 38 ℃; When the acid temperature surpasses 39 ℃; Tables of data or computer program automatic controller output signal make (R1) valve opening solenoid big; Strengthen the cool water shower amount; When sour temperature was lower than 36 ℃, (R1) magnetic valve left smaller automatically or cuts out other magnetic valve, under tables of data or computer program automatic controller program setting, realized control automatically;
(2) dry acid concentration leans on one to inhale the vitriol oil control more than 98.20% that acid is collectd:
When concentration is the dry sour after drying tower has absorbed thinning the releasing of water vapour in the mixing raw material gas of 93.8%-94.2%; Need inhale the concentration that refluxes in the acid village from one is the additional dry acid of the vitriol oil village more than 98.20%, makes the dry acid concentration in drying acid village remain on about 94%; When dry acid absorbed 20kg water in 1 hour in drying tower; This returned acid concentration is 98.40%; Then often drive master control SV (A1) and just be adjusted into one hour from one and inhale and flow into the 0.35 ton of vitriol oil in dry acid village the acid village, the remaining 59kg vitriol oil is called in the 50kg vitriol oil by secondary control SV (A2) control; The remaining 9kg vitriol oil is by water clock SV (A3) control, and secondary control or water clock SV are opened in good time or closed to data sheet or computer program two-position controller according to the dry acid concentration that collects; Concentration change became 94.20% o'clock unlatching water clock SV by 94.15% in sequence of control was provided with; Acid strength is reduced to by 94.20% and was closed water clock SV or secondary control SV at 94.10% o'clock;
(2) one inhale temperature adjustment, the water transfer in acid village
(1) after (R8) passes to data sheet or computer program two-position controller to a suction acid temperature through inductor block; Data sheet or computer program two-position controller are controlled (R2) solenoid control one automatically and are inhaled the sour warm in 48 ℃ scope of acid village; When one inhale the acid village sour temperature when being increased to 49 ℃, strengthen or open time valve, when one inhales sour temperature drop to 46 ℃; Reduce or close time valve, make one to inhale sour temperature and remain in 46 ℃ of-49 ℃ of scopes all the time;
(2) one inhale the sour acid strength of collecing leans on the water transfer unit to come controlling acidity:
When one inhale the acid village acid concentration be 98.10%-98.20% the vitriol oil through pump pump into one inhale absorbed in the tower sulfur trioxide gas become the higher vitriol oil of concentration through flow back to after the comb water cooling one inhale the acid village after; At this moment should replenish a part of water and reduce suction acid acid concentration in the village; At this moment often drive the water transfer SV to a suction acid water transfer in the village through (A8), water diversion volume is decided according to the vitriolic hourly output, supposes 1 hour and produces 1 ton of sulfuric acid calculating; Then normally open solenoid valve is per hour inhaled acid village water transfer 170kg to one; Remaining 28.37-29.18kg water is set per hour water transfer 25kg of secondary control water transfer SV (R9) by secondary control water transfer SV (R9) control, and remaining 3.37-4.18kg water is controlled by water clock water transfer SV (A10); It is 98.15% to be changed at 98.20% o'clock that the control of data sheet or computer program is provided with acid concentration; Secondary control or water clock water transfer SV (A9) or (A10) open when acid concentration reduces to 98.12%, are closed (A9) or (A10);
(3) two inhale temperature adjustment, the water transfer control in acid village
The water transfer in this acid village, temperature adjustment principle with one inhale temperature adjustment, the water transfer device is the same, just the concentration of acid solution should be controlled between the 98.20%-98.30%;
Nucleidic mass in the said sulfuric acid calculates by S:32 O:16 H:1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110355559 CN102502529B (en) | 2011-11-11 | 2011-11-11 | Automatic control temperature-regulating acid-regulating water-regulating system in drying absorption contact sulfuric acid production |
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| CN 201110355559 CN102502529B (en) | 2011-11-11 | 2011-11-11 | Automatic control temperature-regulating acid-regulating water-regulating system in drying absorption contact sulfuric acid production |
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| CN102502529B CN102502529B (en) | 2013-06-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818088A (en) * | 1970-04-18 | 1974-06-18 | Zieren Chemiebau Gmbh Dr A | Self-regulating acid circulation in the contact process |
| CN85109383A (en) * | 1985-11-21 | 1987-09-16 | C-I-L公司 | Sulfur trioxide absorption and technological process thereof |
| CN1136801A (en) * | 1994-10-13 | 1996-11-27 | 埃德默斯顿公司 | Reactor container, plant and process for production of sulfuric acid |
| CN202322380U (en) * | 2011-11-11 | 2012-07-11 | 王强斌 | System for automatically controlling temperature adjustment, acidity adjustment and water adjustment in sulfuric acid production by virtue of dry adsorption contact method |
-
2011
- 2011-11-11 CN CN 201110355559 patent/CN102502529B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818088A (en) * | 1970-04-18 | 1974-06-18 | Zieren Chemiebau Gmbh Dr A | Self-regulating acid circulation in the contact process |
| CN85109383A (en) * | 1985-11-21 | 1987-09-16 | C-I-L公司 | Sulfur trioxide absorption and technological process thereof |
| CN1136801A (en) * | 1994-10-13 | 1996-11-27 | 埃德默斯顿公司 | Reactor container, plant and process for production of sulfuric acid |
| CN202322380U (en) * | 2011-11-11 | 2012-07-11 | 王强斌 | System for automatically controlling temperature adjustment, acidity adjustment and water adjustment in sulfuric acid production by virtue of dry adsorption contact method |
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