CN109499299B - Desulfurizing device capable of replacing materials online - Google Patents
Desulfurizing device capable of replacing materials online Download PDFInfo
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- CN109499299B CN109499299B CN201811408670.1A CN201811408670A CN109499299B CN 109499299 B CN109499299 B CN 109499299B CN 201811408670 A CN201811408670 A CN 201811408670A CN 109499299 B CN109499299 B CN 109499299B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
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Abstract
The invention discloses a desulfurization device for replacing materials on line, which comprises two seal boxes arranged at two sides of the desulfurization device, wherein each seal box is divided into a seal cavity and a motor cavity by a partition plate, a motor is arranged in each motor cavity, a clip-shaped slide rail is arranged in each seal cavity, and a plurality of airtight blocking pieces sliding along the slide rails are arranged on the slide rails; still be provided with the briquetting between two filter screens, airtight separation blade is run through respectively at the both ends of briquetting to be connected with the motor that drives the briquetting and do the return-type motion, the passageway I that the briquetting set up on through the bottom plate breaks away from two filter screens to get back to in two filter screens through passageway II that set up on the roof, still be provided with on the sealed chamber and surround the same perforation of area size with briquetting movement route, be provided with the closing plate in the perforation, the closing plate passes through the bracing piece and is connected with the backup pad that sets up on the seal box. The invention can ensure the air tightness of the device in the process of replacing the desulfurizer and the compactness of the desulfurizer among filter screens.
Description
Technical Field
The invention relates to the technical field of dry desulphurization, in particular to a desulphurization device for replacing materials on line.
Background
The biogas produced from the anaerobic fermentation device, especially when fermented at medium or high temperature, carries a large amount of H2And S. Because a large amount of water vapor exists in the biogas, the water and H in the biogas2And the corrosion and the blockage of metal pipelines, valves and flow meters are accelerated under the combined action of S. In addition, H2SO formed after combustion of S2And the sulfurous acid is combined with water vapor in combustion products, so that the metal surface of equipment is corroded, and the pollution to the atmospheric environment is caused, and the human health is influenced. Therefore, before using the biogas, the H must be removed2S。
The dry desulfurization is a simple, high-efficiency and relatively low-cost desulfurization methodThe method is generally suitable for the desulfurization of the biogas with small biogas amount and low hydrogen sulfide concentration. The basic principle of the equipment for removing hydrogen sulfide in biogas gas by a dry method is O2Make H2One method of oxidizing S to sulfur or sulfur oxides may also be referred to as a dry oxidation process. The dry method equipment is composed of a container filled with filler containing activated carbon and iron oxide. Gas is passed at a low flow rate from one end through the packing layer in the vessel, hydrogen sulfide (H)2S) is oxidized into sulfur or sulfur oxides, the sulfur or sulfur oxides remain in the filler layer, and the purified gas is discharged from the other end of the container. The dry desulfurization has the problems that the desulfurizer can not be replaced on line and can be replaced after shutdown, which causes inconvenience to the production process. In some domestic factories, the technology of online replacement of the desulfurizer is also adopted, but the air tightness of the device is difficult to guarantee in the replacement process of the desulfurizer, and after the desulfurizer is replaced, cavities may appear in the desulfurizer among filter screens, which affects the desulfurization effect.
Document CN87212901 discloses a divided bucket type dry box desulfurization device for purifying coal gas, which is provided with one or more desulfurization buckets in a dry box, and a desulfurizer is layered in the desulfurization buckets. When the desulfurizer is replaced, the desulfurizer can be lifted out by opening the box cover. The desulfurizing hopper and the bottom of the dry box are sealed by sand, and the gas to be desulfurized can be output only after passing through a desulfurizing agent. However, the device does not solve the problem of air tightness of the device in the desulfurization process, and the compactness of the desulfurizer among filter screens cannot be ensured.
Disclosure of Invention
The invention aims to provide a desulfurizing device for replacing materials on line, which can ensure the air tightness of the device in the process of replacing a desulfurizing agent and the compactness of the desulfurizing agent among filter screens.
The desulfurization device comprises an air inlet pipe and an exhaust pipe which are arranged on the desulfurization device, and at least two filter screens which are arranged between a top plate and a bottom plate of the desulfurization device, wherein a desulfurizer is arranged between the two filter screens, a feed inlet for filling the desulfurizer is formed in the top plate, a discharge outlet for discharging the desulfurizer is formed in the bottom plate, two seal boxes are arranged on two sides of the desulfurization device, the seal boxes are divided into a seal cavity and a motor cavity by a partition plate, a motor is arranged in the motor cavity, a clip rail is arranged in the seal cavity, and a plurality of airtight blocking pieces which slide along the clip rail are arranged on the clip rail; still be provided with the briquetting between two filter screens, airtight separation blade is run through respectively at the both ends of briquetting to be connected with the motor that drives the briquetting and do the return-type motion, the passageway I that the briquetting set up on through the bottom plate breaks away from two filter screens to get back to in two filter screens through passageway II that set up on the roof, still be provided with on the sealed chamber and surround the same perforation of area size with briquetting movement route, be provided with the closing plate in the perforation, the closing plate passes through the bracing piece and is connected with the backup pad that sets up on the seal box.
The desulfurizer used by the invention is granular, the surface of the desulfurizer is honeycomb-shaped, has larger pore-isolated substances and good flow capacity adsorption performance, and consists of a chemical desulfurizer and an active carbon desulfurizer, wherein the chemical desulfurizer comprises an iron-based desulfurizer, such as a powdery iron oxide desulfurizer.
The motor in the motor cavity is an explosion-proof motor, the explosion-proof motor does not generate electric sparks during operation, can be used in flammable and explosive places, and is mainly used in coal mines, petroleum and natural gas, petrochemical industry and chemical industry. The explosion-proof motor is connected with a loop circuit consisting of gears, a power source is provided through the explosion-proof motor, the fixing piece arranged on the loop circuit makes a loop motion, two ends of the pressing block are respectively fixed on the fixing piece corresponding to the motor cavity, and the pressing block makes a loop motion along with the fixing piece.
The invention realizes on-line replacement of the desulfurizer and ensures the compactness of the desulfurizer through the reciprocating motion of the pressing block. The initial position of briquetting is located the feed inlet below, when needing to be changed the desulfurizer, opens feed inlet and discharge gate simultaneously, discharges the desulfurizer from the discharge gate through the slow, at the uniform velocity, closely knit motion of briquetting, when can avoiding opening the discharge gate, the desulfurizer local whereabouts is inhomogeneous, causes the vacuole formation between the filter screen, influences the effect of online desulfurization when changing the desulfurizer.
In the process of discharging the inactivated desulfurizer below the pressing block, new desulfurizer can be slowly and uniformly filled above the pressing block, so that the effect of desulfurization is not influenced even if the desulfurizer is replaced on line. After the inactivated desulfurizer is completely discharged, the discharge port is closed, the pressing block leaves between the two filter screens through the channel I arranged on the bottom plate, and the pressing block passes through the channel II arranged on the top plate to return to the two filter screens according to the shape of the slide rail, the pressing block completely replaces the new desulfurizer in the filter screens at the moment, a certain pressure is downwards applied to the pressing block at the moment, a certain displacement is completed, the compactness of the new desulfurizer is ensured, and then the pressing block stops moving and is restarted when waiting for next desulfurizer replacement.
The pressing block is a pressing plate or a rolling shaft, the pressing plate does not rotate when moving, and the rolling shaft rotates automatically when moving.
For preventing that the desulfurizer from blockking up passageway I and passageway II, be provided with airtight switch I in passageway I, be provided with airtight switch II in passageway II, airtight switch can also prevent that sour gas from overflowing from feed inlet and discharge gate through the passageway, and airtight switch's setting can increase the use validity and the gas tightness of device.
The sealed chamber includes desulphurization unit's curb plate and baffle, is provided with two liang of continuous, whole annular airtight separation blades between baffle and curb plate, the briquetting runs through an airtight separation blade wherein and is fixed with this airtight separation blade, does the in-process of returning the shape motion at the briquetting, and the airtight separation blade fixed with the briquetting also can drive other airtight separation blades and do the shape motion in the slide rail.
Because the briquetting can form the cutting of returning the shape to curb plate and baffle in the in-process of doing the returning the shape motion, consequently can form the perforation on curb plate and the baffle, be provided with the closing plate in the perforation, the weight of closing plate is supported by the bracing piece, the bracing piece passes the motor and is fixed with the backup pad that sets up on the motor chamber to make the closing plate become a part in sealed chamber. For the fixed effect of strengthening the bracing piece, the bracing piece can set up many according to the demand. At this moment, can form annular channel between closing plate and curb plate, closing plate and the baffle, annular channel can supply the briquetting to do the return circular motion, and the airtight separation blade of doing the annular motion along with the briquetting then can seal annular channel, can play certain sealed effect.
The airtight blocking pieces comprise a support matched with the sliding rail and an air bag arranged in the support, a cavity is formed in the air bag, and the cavities between every two adjacent airtight blocking pieces are communicated with each other. The airtight blocking piece bracket has the function of enabling the airtight blocking piece to have a certain fixed appearance and to slide on the sliding rail, and the expansion and the contraction of the air bag can change the clearance between the airtight blocking piece and the side plate and the partition plate. When sealing is needed, the air bag is expanded to seal the sealing cavity; when the airtight blocking piece is required to move, the air bag is contracted, and the airtight blocking piece can move conveniently.
In order to prevent the air bag from being corroded by hydrogen sulfide, the air bag is made of fluororubber such as perfluoroelastomer, can resist high temperature and hydrogen sulfide corrosion, and can be expanded to seal the sealing cavity after being inflated.
The pressing block is provided with a vent pipe, one end of the vent pipe is communicated with the air bag, and the other end of the vent pipe is connected with an inflating device arranged on the motor. The inflation and deflation of the air bag are controlled by an inflation device on the motor, the deflation of the inflation device is controlled when the airtight blocking piece needs to move, and the inflation of the inflation device is controlled when the airtight blocking piece is still.
The discharge gate is close to filter screen department and is provided with the row's of confession briquetting passing floodgate, the discharge gate is kept away from filter screen department and is provided with airtight floodgate, it is provided with passageway I to arrange between floodgate and the airtight floodgate. Due to the arrangement of the double gates, the air tightness of the discharge hole can be better ensured.
And the discharge gate and/or the airtight gate are/is provided with a pressure sensor, and the pressure sensor is connected with the motor through a controller. The pressure of the briquetting needs to be adjusted within a proper range, if the pressure is too low, the compactness of the desulfurizer cannot be guaranteed, and if the pressure is too high, the desulfurizer may be discharged from the gap of the filter screen under pressure. Through the arrangement of the pressure sensor, the pressure of the pressing block can be controlled within a limited range all the time, and the pressing block can keep moving slowly, stably and at a constant pressure, so that the compactness of the desulfurizer is ensured.
And a slag discharge port for discharging the desulfurizer is arranged on the bottom plate of the sealing cavity. Because airtight separation blade can move in sealed chamber, consequently there is certain clearance between airtight separation blade and the closing plate, can the certain amount desulfurizer of seepage in the clearance, when sealed chamber needs to be sealed, the desulfurizer of seepage can produce the help effect to sealed chamber's sealed, when airtight separation blade needs to move, the desulfurizer of seepage then can cause the hindrance to airtight separation blade in the clearance. And the bottom of the sealing cavity is provided with a slag discharge port, so that leaked desulfurizing agent can be discharged, and the airtight blocking piece can freely move when needing to move. And a switch is also arranged at the slag discharge hole.
The bottom plate is provided with a collecting tank for collecting the desulfurizer discharged from the slag discharge port and the discharge port, so that the waste of the desulfurizer can be avoided, and the desulfurizer can be recycled after being collected.
The cross-sectional area of the feed inlet is the same as the area enclosed by the two filter screens and the two side plates on the desulfurization device, and the feed inlet is connected with the feed delivery groove. The feeding hole is arranged in such a way, so that the novel desulfurizer can be uniformly paved on the pressing block when the pressing block moves downwards, and the compactness of the novel desulfurizer is ensured to a certain extent.
The desulfurizing device is sequentially connected with a storage tank for collecting the desulfurizing agent and a heating box for heating and reducing the desulfurizing agent, and the desulfurizing agent reduced by the heating box is conveyed back to the conveying tank through a transmission device. After the desulfurizer is inactivated, the desulfurizer can be pyrolyzed and reduced again through collection and heating treatment, the desulfurizer can be reused after being conveyed back to the conveying trough again, and the use efficiency of the desulfurizer can be improved through the arrangement of the collection and heating device.
The exhaust pipe is provided with a sulfur-containing gas content measuring sensor, the sensor is connected with an analyzer, and the desulfurization effect in the desulfurization agent replacement process can be monitored, so that different measures can be taken by workers according to different conditions in the replacement process.
In addition, still be provided with the airtight door that is used for overhauing the motor on the motor chamber, still be provided with exhaust apparatus on the motor chamber. When the motor breaks down and needs to be overhauled, the sulfur-containing gas in the motor cavity is exhausted through the exhaust device under the condition that the sealing cavity is sealed, the airtight door is opened again to carry out overhauling, and the working environment of workers can be conveniently overhauled and improved.
The invention has the beneficial effects that:
(1) the briquetting can continuously apply constant pressure to the inactivated desulfurizer in the process of replacing the desulfurizer, can ensure the compactness of the inactivated desulfurizer, and avoids the phenomenon that the desulfurization efficiency is influenced by a cavity formed in the process of replacing the inactivated desulfurizer.
(2) The briquetting can exert certain pressure to the desulfurizer of newly changing, can guarantee the closely knit degree of desulfurizer of newly changing, prevent to newly change and produce the cavity in the desulfurizer, influence desulfurization efficiency.
(3) The clearance between airtight separation blade and the closing plate can be adjusted through the mode nimble of aerifing with the gassing to airtight separation blade, makes the leakproofness that the staff can make things convenient for, effectual regulation sealed chamber.
(4) The pressure sensor is arranged to enable workers to quantitatively control the pressure of the pressing block, so that the pressing block can move within a limited pressure range, and the practical effect after the desulfurizer is replaced is improved.
(5) The cross section area of the feed port is the same as the area enclosed by the two filter screens, so that when the press block moves downwards, the newly replaced desulfurizer can be uniformly paved on the press block, and the compactness of the new desulfurizer is ensured to a certain extent.
(6) The channel I on the bottom plate and the channel II on the top plate enable the pressing block to reciprocate between the filter screens and outside the filter screens, and the pressing block can be conveniently switched in position in the filter screens.
(7) The slag discharge port arranged at the bottom of the sealing cavity enables the airtight blocking piece to discharge leaked desulfurizer from the slag discharge port when the airtight blocking piece needs to move, and the influence of the desulfurizer on the movement of the airtight blocking piece can be avoided.
(8) The desulfurizing device is connected with the collecting device and the heating device, and can pyrolyze and reduce the collected inactivated desulfurizing agent again, thereby improving the service efficiency of the desulfurizing agent.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
FIG. 2 is a cross-sectional view of an inlet duct, an exhaust duct and a screen of a desulfurization unit in accordance with the present invention.
Fig. 3 is an enlarged schematic view of a screen portion of the present invention.
FIG. 4 is a sectional view of the desulfurization apparatus of the present invention taken along the direction of the briquette.
FIG. 5 is a schematic structural view of the joint between the airtight baffle and the pressing block.
FIG. 6 is a schematic view of the arrangement of the airtight blocking sheets along the sliding rail according to the present invention.
The desulfurization device comprises a desulfurization device 1, a 111 top plate, a 112 bottom plate, a 113 side plate, a 114 partition plate, a 115 slag discharge port, a 116 air inlet pipe, a 117 exhaust pipe, a 2 storage tank, a 3 heating box, a 4 filter screen, 5 pressing blocks, a 511 vent pipe, a 6 conveying chute, a 611 conveying chute, a 7 discharging chute, a 711 discharging sluice, a 712 airtight sluice, a 713 collecting chute, a 714 conveying pipeline, 8 sliding rails, a 811 channel I, a 812 airtight switch I, a 813 channel II, a 814 airtight switch II, a 9 airtight baffle, a 911 support, a 912 airbag, a 913 cavity, 914 through holes, a 10 motor, 1011 motor guide rails, 1012 support plates and 1013 support rods.
Detailed Description
As shown in fig. 1-6, the present invention includes an air inlet pipe 116 and an air outlet pipe 117 disposed on a desulfurization device 1, and at least two filter screens 4 disposed between a top plate 111 and a bottom plate 112 of the desulfurization device 1, wherein a desulfurizer is disposed between the two filter screens 4, a feed inlet for filling the desulfurizer is disposed on the top plate 111, a discharge outlet for discharging the desulfurizer is disposed on the bottom plate 112, two seal boxes are disposed on two sides of the desulfurization device 1, the seal boxes are divided into a seal cavity and a motor cavity by a partition plate 114, a motor 10 is disposed in the motor cavity, a clip rail 8 is disposed in the seal cavity, and a plurality of airtight blocking pieces 9 sliding along the clip rail 8 are disposed on the clip rail 8; still be provided with briquetting 5 between two filter screens 4, airtight separation blade 9 is run through respectively at the both ends of briquetting 5 to be connected with the motor 10 that drives briquetting 5 and do the return movement, briquetting 5 breaks away from two filter screens 4 through passageway I811 that sets up on bottom plate 112 to in getting back to two filter screens 4 through passageway II 813 that sets up on roof 111, still be provided with the perforation that surrounds the same of area size with briquetting 5 movement path on the sealed chamber, be provided with the closing plate in the perforation, the closing plate passes through the bracing piece 1013 and is connected with the backup pad 1012 that sets up on the seal box.
In order to prevent the desulfurizer from blocking the channel I811 and the channel II 813, an airtight switch I812 is arranged in the channel I811, an airtight switch II 814 is arranged in the channel II 813, the airtight switches can also prevent sulfur-containing gas from overflowing from a feed inlet and a discharge outlet through the channels, and the setting of the airtight switches can increase the use effectiveness and the airtightness of the device.
In the actual production process, the position of the pressing block 5 can be manually switched without arranging the slide rail 8.
The sealed chamber includes lateral plate 113 and baffle 114 of desulphurization unit 1, is provided with two liang of continuous, whole annular airtight separation blade 9 that is between baffle 114 and lateral plate 113, briquetting 5 runs through an airtight separation blade 9 wherein and is fixed with this airtight separation blade 9, and in the in-process of the shape motion is done to briquetting 5, the airtight separation blade 9 of fixing with briquetting 5 also can drive other airtight separation blades 5 and do the shape motion back in slide rail 8.
The briquette 5 forms a loop-shaped cut to the side plate 113 and the partition plate 114 during the looping movement, so that a through hole is formed in the side plate 113 and the partition plate 114, a sealing plate is disposed in the through hole, the weight of the sealing plate is supported by the support rod 1013, and the support rod 1013 penetrates the motor 10 and is fixed to the support plate 1012 disposed on the motor cavity, so that the sealing plate 1012 becomes a part of the sealing cavity. In order to enhance the fixing effect of the support rod 1013, the support rod 1013 may be provided with a plurality of pieces as required. At this time, an annular passage is formed between the sealing plate and the side plate 113, and between the sealing plate and the partition plate 114, the annular passage can allow the pressing block 5 to do circular motion, and the airtight blocking piece 9 doing circular motion along with the pressing block 5 can seal the annular passage, so that a certain sealing effect can be achieved.
The air-tight baffle plates 9 comprise a bracket 911 matched with the sliding rail 8 and an air bag 912 arranged in the bracket 911, wherein a cavity 913 is arranged in the air bag 912, and the cavities 913 between two adjacent air-tight baffle plates 9 are communicated with each other through a through hole 914. The function of the support 911 of the airtight stop 9 is to make the airtight stop 9 have a certain fixed shape and slide on the slide rail 8, and the expansion and contraction of the air bag 912 can change the gap between the airtight stop 9 and the side plate 113 and the partition 114.
The pressing block 5 is provided with a vent pipe 511, one end of the vent pipe 511 is communicated with the air bag 912, and the other end of the vent pipe 511 is connected with an inflating device arranged on the motor 10. The inflation and deflation of the air bag 912 are controlled by the inflation device on the motor 10, the deflation of the inflation device is controlled when the airtight blocking piece 9 needs to move, and the inflation of the inflation device is controlled when the airtight blocking piece 9 is still.
The discharge gate is provided with the row's of supplying briquetting 5 to pass floodgate 711 near filter screen 4 department, the discharge gate is kept away from filter screen 4 department and is provided with airtight floodgate 712, be provided with passageway I811 between row's of material floodgate 711 and airtight floodgate 712. Due to the arrangement of the double gates, the air tightness of the discharge hole can be better ensured.
The discharge gate 711 and/or the airtight gate 712 are/is provided with a pressure sensor, and the pressure sensor is connected with the motor 10 through a controller. Through the arrangement of the pressure sensor, the pressure of the pressing block 5 can be always controlled within a limited range, so that the pressing block 5 can keep moving slowly, stably and at a constant pressure, and the compactness of the desulfurizer is ensured.
A slag discharge port 115 for discharging the desulfurizer is arranged on the bottom plate 112 of the sealed cavity. The bottom of the sealing cavity is provided with a slag discharge hole 115, so that leaked desulfurizing agent can be discharged, and the airtight blocking piece 9 can freely move when needing to move. A switch is also arranged at the slag discharge port 115.
The bottom plate 112 is provided with a collecting tank 713 for collecting the desulfurizer discharged from the slag discharge port 115 and the discharge port, and the collecting tank 713 is connected with a conveying pipe 714 for conveying the desulfurizer to the storage tank 2, so that waste of the desulfurizer can be avoided, and the desulfurizer can be recycled after being collected.
The cross-sectional area of the feed inlet is the same as the area enclosed by the two filter screens 4 and the two side plates 113 on the desulphurization device 1, and the feed inlet is connected with the feed delivery chute 6. The arrangement of the feeding hole can ensure that the fresh desulfurizer can be uniformly paved on the pressing block 5 when the pressing block 5 moves downwards, so that the compactness of the fresh desulfurizer is ensured to a certain extent.
The desulfurizing device 1 is sequentially connected with a storage box 2 for collecting the desulfurizing agent and a heating box 3 for heating and reducing the desulfurizing agent, and the desulfurizing agent reduced by the heating box 3 is conveyed back to a conveying trough 6 through a transmission device. After the desulfurizer is inactivated, the desulfurizer can be pyrolyzed and reduced again through collection and heating treatment, the desulfurizer can be reused after being conveyed back to the conveying trough 6 again, and the use efficiency of the desulfurizer can be improved through the arrangement of the collection and heating device.
The exhaust pipe 117 is provided with a sulfur-containing gas content measuring sensor, the sensor is connected with an analyzer, and the desulfurization effect in the desulfurizer replacement process can be monitored, so that different measures can be taken by workers for different conditions in the replacement process.
An airtight door for overhauling the motor 10 is further arranged on the motor cavity, and an exhaust device is further arranged on the motor cavity. When motor 10 broke down and need overhauld, under the sealed circumstances of guaranteeing the seal chamber, through exhaust apparatus with the sour gas discharge of motor intracavity, open the air-tight door again and can overhaul, can conveniently overhaul and improve staff's operational environment.
The method comprises the following steps:
(1) when the desulfurizer needs to be replaced, the inflation device is controlled to discharge gas in the air bag 912 in the airtight baffle 9, the switch on the slag discharge port 115 is opened, the discharge gate 711, the airtight gate 712 and the delivery gate 611 are opened at the same time, the motor 10 is started at the same time, the press block 5 is controlled to move downwards slowly at a constant pressure by the motor 10 while the desulfurizer is controlled to be discharged slowly, and new desulfurizer is uniformly spread on the press block 5 by adjusting the delivery gate 611;
(2) when the briquetting 5 moves to the position of the channel I811, the discharge gate 711, the airtight gate 712 and the delivery gate 611 are closed, the airtight switch I812 is opened, the briquetting 5 passes through the channel I811 and returns to the channel II 813 along the slide rail 8, and the airtight switch I812 is closed;
(3) under the condition that the airtight gate 712 is closed, the material conveying gate 611 is opened, so that the desulfurizer fills the gap between the airtight gate 712 and the material conveying gate 611, and then the material conveying gate 611 is closed, so that the discharge port is sealed;
(4) opening an airtight switch II 814 to enable the pressing block 5 to move to the position below the material conveying gate 611, then closing the airtight switch II 814, closing a switch on the slag discharge port 115, controlling the pressing block 5 to apply certain pressure to the new desulfurizing agent, enabling the pressing block 5 to stop moving, and then controlling an inflating device to inflate the air bag 912 in the airtight blocking piece 9 to enable the sealing cavity to be sealed;
(5) opening the material conveying gate 611 to fill the gap between the briquetting 5 and the material conveying gate 611 with the new desulfurizer, and closing the material conveying gate 611 to seal the material inlet;
(6) and (5) repeating the steps (1) to (5) when the desulfurizing agent needs to be replaced.
Claims (10)
1. The utility model provides a desulphurization unit of material is changed on line, is including setting up intake pipe (116), blast pipe (117) on desulphurization unit (1) to and set up two piece at least filter screens (4) between desulphurization unit (1) roof (111) and bottom plate (112), be provided with the desulfurizer between two filter screens (4), be provided with the feed inlet that is used for filling the desulfurizer on roof (111), be provided with the discharge gate that is used for discharging the desulfurizer on bottom plate (112), its characterized in that: two sealing boxes are arranged on two sides of the desulfurization device (1), the sealing boxes are divided into a sealing cavity and a motor cavity by a partition plate (114), a motor (10) is arranged in the motor cavity, a clip-shaped sliding rail (8) is arranged in the sealing cavity, and a plurality of airtight blocking pieces (9) sliding along the sliding rail (8) are arranged on the sliding rail (8); still be provided with briquetting (5) between two filter screens (4), airtight separation blade (9) are run through respectively at the both ends of briquetting (5) to be connected with motor (10) that drive briquetting (5) were done the back shape motion, I (811) of passageway that briquetting (5) set up through on bottom plate (112) break away from two filter screens (4) to get back to in two filter screens (4) through passageway II (813) that set up on roof (111), still be provided with the perforation that surrounds the area size the same with briquetting (5) movement route on the sealed chamber, be provided with the closing plate in the perforation, the closing plate passes through bracing piece (1013) and is connected with backup pad (1012) of setting on the seal box.
2. The desulfurization apparatus for replacing materials on line according to claim 1, wherein: the air-tight baffle plates (9) comprise a support (911) matched with the sliding rail (8) and an air bag (912) arranged in the support (911), a cavity (913) is arranged in the air bag (912), and the cavities (913) between two adjacent air-tight baffle plates (9) are communicated with each other.
3. The desulfurization apparatus for replacing materials on line according to claim 2, wherein: the pressing block (5) is provided with a vent pipe (511), one end of the vent pipe (511) is communicated with the air bag (912), and the other end of the vent pipe (511) is connected with an inflating device arranged on the motor (10).
4. The desulfurization apparatus for replacing materials on line according to claim 1, wherein: the discharge gate is provided with row material floodgate (711) that can supply briquetting (5) to pass near filter screen (4), the discharge gate is kept away from filter screen (4) and is located to be provided with airtight floodgate (712), it is provided with passageway I (811) to arrange between material floodgate (711) and airtight floodgate (712).
5. The desulfurization apparatus for replacing materials on line according to claim 4, wherein: and a pressure sensor is arranged on the discharge gate (711) and/or the airtight gate (712), and the pressure sensor is connected with the motor (10) through a controller.
6. The desulfurization apparatus for replacing materials on line according to claim 1, wherein: a slag discharge port (115) for discharging the desulfurizer is arranged on the bottom plate (112) of the sealed cavity.
7. The desulfurization apparatus for replacing materials on line according to claim 6, wherein: and a collecting tank (713) for collecting the desulfurizer discharged from the slag discharge port (115) and the discharge port is arranged on the bottom plate (112).
8. The desulfurization apparatus for replacing materials on line according to claim 1, wherein: the cross-sectional area of the feed inlet is the same as the area enclosed by the two filter screens (4) and the two side plates (113) on the desulphurization device (1), and the feed inlet is connected with the material conveying groove (6).
9. The desulfurization apparatus for replacing materials on-line according to claim 8, wherein: the desulfurizing device (1) is sequentially connected with a storage box (2) for collecting the desulfurizing agent and a heating box (3) for heating and reducing the desulfurizing agent, and the desulfurizing agent reduced by the heating box (3) is conveyed back into the conveying trough (6) through a transmission device.
10. The desulfurization apparatus for replacing materials on line according to any one of claims 1 to 9, wherein: and a sulfur-containing gas content measuring sensor is arranged at the exhaust pipe (117) and is connected with an analyzer.
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| CN201811408670.1A CN109499299B (en) | 2018-11-23 | 2018-11-23 | Desulfurizing device capable of replacing materials online |
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