CN115090103B - Waste gas pollutant purification system for waste lead storage battery treatment and purification method thereof - Google Patents
Waste gas pollutant purification system for waste lead storage battery treatment and purification method thereof Download PDFInfo
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- CN115090103B CN115090103B CN202210844643.9A CN202210844643A CN115090103B CN 115090103 B CN115090103 B CN 115090103B CN 202210844643 A CN202210844643 A CN 202210844643A CN 115090103 B CN115090103 B CN 115090103B
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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
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/10—Combinations of devices covered by groups B01D45/00, B01D46/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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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
- B01D53/50—Sulfur oxides
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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
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
The invention provides a waste gas pollutant purification system for waste lead storage battery treatment and a purification method thereof, wherein the waste gas pollutant purification system comprises a dust remover and a desulfurizing tower which are communicated with each other, wherein the dust remover is used for absorbing lead dust in smelting waste gas; the desulfurizing tower is used for removing sulfur dioxide and lead dust in the smelting waste gas, a demister is arranged in the desulfurizing tower, the demister comprises a plurality of blades which are arranged in parallel, the abdomen of each blade is bent, one end of each blade is hinged with a first support rod, and the other end of each blade is embedded in a second support rod; hinges are hinged between adjacent blades, and the hinges have folding angles in a normal state; the blade plate on the outermost side is connected with an adjusting mechanism, the adjusting mechanism is used for pushing the second support rod away from the blade plate and stretching the blade plate simultaneously to open the hinge and increase the distance between the blade plates; and a spraying assembly is arranged in the desulfurizing tower and used for washing scale blocks on the surfaces of the blades of the demister. The invention solves the problem that the scale of a demister is difficult to clean in the waste gas treatment process of waste lead storage battery treatment.
Description
Technical Field
The invention belongs to the technical field of waste lead treatment of storage batteries, and particularly relates to a waste gas pollutant purification system for waste lead storage battery treatment and a purification method thereof.
Background
The general method for treating waste lead accumulator is to pretreat the waste lead accumulator, mainly adopt mechanical crushing and sorting, and desulfurize the lead plaster containing sulfur, then recover lead and other useful substances by combined process of fire method, wet method and dry-wet method. The lead recovered by the pyrogenic process recovery process can be smelted by adopting a rotary kiln, and waste gas generated in the smelting process still contains more lead dust, smoke dust and partial sulfide, and can be discharged only by purifying waste gas pollutants.
For example, patent application publication No. CN108624757A discloses a method for manufacturing secondary lead for a storage battery, comprising the steps of: s1: crushing and sorting: crushing and separating the waste lead storage battery to obtain a lead grid and lead paste, and S2: primary detection: detecting the wastewater and the acid mist generated in the separation process in the S1, discharging the wastewater and the acid mist after the wastewater and the acid mist are detected to be qualified, and S3: lead plaster treatment: and (3) carrying out desulfurization, filter pressing and drying treatment on the lead plaster in the step (S2), and S4: and (3) secondary detection: and (3) detecting the wastewater and the waste gas generated in the desulfurization and filter pressing processes in the S3, and discharging the wastewater and the waste gas after the wastewater and the waste gas are detected to be qualified, wherein the step S5: smelting: and (4) smelting the lead plaster subjected to desulfurization, filter pressing and drying treatment in the step (S3) to obtain lead bullion, and refining the lead bullion to obtain secondary lead. The method detects the wastewater, waste gas and acid mist generated in the production process of the secondary lead, detects the qualified emission, is favorable for controlling the emission of pollutants which do not reach the standard and is favorable for protecting the environment.
In the waste gas of useless lead accumulator carries out the desulfurization treatment process, need use the defroster to carry out gas-liquid separation to the wet waste gas after the desulfurization, can deposit the dirt piece that contains plumbous and sulphur on the blade of defroster because the environmental atmosphere in the desulfurizing tower makes, long-term use back probably blocks up the defroster, if untimely inspection and clearance can cause the safety in production accident when serious. However, the vanes of the demister are usually configured in a multi-pass curved shape, and the spray water is difficult to effectively clean the dead-angle area inside the vanes, which makes the demister difficult to clean.
Disclosure of Invention
The invention aims to provide a waste gas pollutant purification system for waste lead storage battery treatment, which aims to solve the problem that scales of a demister are difficult to clean in the waste gas treatment process of waste lead storage battery treatment.
The invention provides the following technical scheme:
a waste gas pollutant purification system for waste lead storage battery treatment comprises a dust remover and a desulfurizing tower which are communicated with each other;
the dust remover is used for absorbing lead dust in the smelting waste gas;
the desulfurization tower is used for removing sulfur dioxide and lead dust in the smelting waste gas, a demister is arranged in the desulfurization tower, the demister comprises a plurality of blades which are arranged in parallel, the abdomen of each blade is bent, one end of each blade is hinged with a first support rod, and the other end of each blade is embedded in a second support rod; hinges are hinged between the adjacent leaf plates, and the hinges have folding angles in a normal state; the blade plate on the outermost side is connected with an adjusting mechanism, and the adjusting mechanism is used for pushing the lower support rod away from the blade plate and stretching the blade plate at the same time, so that the hinge is opened to increase the distance between the blade plates;
and a spraying assembly is arranged in the desulfurizing tower and used for washing scale blocks on the surfaces of the blades of the demister.
Preferably, the adjusting mechanism comprises a driving rod, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a pressure rod and a guide block, the driving rod is rotatably mounted on the desulfurization tower, the end part of the driving rod is hinged with the first connecting rod, the first connecting rod is sequentially hinged with the second connecting rod, the third connecting rod and the fourth connecting rod in the direction away from the driving rod, and the other ends of the second connecting rod, the third connecting rod and the fourth connecting rod are respectively hinged on the pressure rod, the guide block and the blade plate on the outermost side; the guide block is fixed on the inner wall of the desulfurizing tower, a guide hole for guiding the lifting action of the pressure lever is arranged in the guide block, and the end part of the pressure lever is fixedly connected with the second support rod;
when the driving rod rotates downwards, the end part of the first connecting rod is pressed down, so that the inclined first connecting rod rotates to tend to the vertical direction, and the other end of the first connecting rod pulls the blade outwards; and meanwhile, the driving rod drives the pressure rod to move downwards when rotating, so that the second support rod is far away from the blade plate.
Preferably, the blade plate on the outermost side is provided with a strip-shaped groove, a follower is mounted at the end of the four connecting rods, and when the driving rod is rotated, the follower rolls along the strip-shaped groove.
Preferably, the blade plate on the outermost side is provided with a strip-shaped hole used for passing through a connecting rod IV, the strip-shaped hole is communicated with the strip-shaped groove, and the connecting rod IV is inserted into the strip-shaped hole and then is installed in the strip-shaped groove.
Preferably, the second support rod is provided with a positioning groove, and the end part of the blade plate is embedded into the positioning groove.
Preferably, the positioning groove comprises a coarse positioning part and a fixing part, the coarse positioning part is positioned at the notch of the positioning groove, and the width of the coarse positioning part is gradually reduced from the notch to the inside of the groove until the width of the coarse positioning part is equal to that of the fixing part; the fixing part is positioned in the groove and tightly fixes the end part of the blade.
Furthermore, a first contact block and a second contact block are oppositely arranged between the adjacent blade plates, the first contact block and the second contact block are electrically connected with the conductive blocks in the blade plates, and each group of the first contact block and the second contact block is connected in series into the detection circuit; when the driving rod rotates to the position, the first contact block is abutted to the end face of the second contact block to be in a conduction state, the first contact block and the second contact block of all the blades are conducted, the detection circuit is conducted at the moment, and the fact that all the blades are reliably inserted into the positioning groove is indicated.
Further, a motor is installed on the outer wall of the desulfurizing tower, and an output shaft of the motor is connected with the driving rod; a flat hole is formed in the tower wall of the desulfurizing tower and is used for avoiding a driving rod to rotate; and an organ cover is arranged in the flat hole and used for sealing the flat hole, and the organ cover is fixedly connected with the driving rod and deforms along with the rotation of the driving rod.
Preferably, the upper side and the lower side of the demister are both provided with a spraying assembly for washing the upper side and the lower side of the demister; the left side and the right side of the blade plate are provided with the adjusting mechanisms, and the adjusting mechanisms are unfolded towards the left side and the right side simultaneously to form the upper ends or the lower ends of the blade plates.
Another object of the present invention is to provide a method for purifying waste gas pollutants for waste lead storage battery treatment, which comprises the following steps:
waste gas generated when the lead-containing substance of the waste lead storage battery is smelted is sent into a dust remover to filter lead dust;
the filtered waste gas is sent into a desulfurizing tower for desulfurization, and the desulfurized flue gas is discharged out of the desulfurizing tower after upward gas-liquid separation through a demister;
when the surfaces of the blades of the demister are scaled, a motor of the adjusting mechanism is started, the driving rod is rotated downwards, the second supporting rod and the opened blades are synchronously lowered by the adjusting mechanism, the distance between the blades is increased, and then the blades are sprayed from the upper side and the lower side;
the motor rotates forwards and backwards in a reciprocating manner, so that the blades are opened and folded repeatedly, and the spraying assembly is used for dynamically washing the blades;
after spraying, the adjusting mechanism resets the driving rod, so that the support rod supports and fixes the blade plate again.
The invention has the beneficial effects that:
after the lead-containing waste gas is subjected to dust removal and desulfurization for a period of time, in order to efficiently remove scale blocks on the surfaces of the blades of the demister, the blade mounting structure is provided with a first support rod hinged at one end and a second support rod embedded at the other end, hinges are hinged between adjacent blades, and the hinges have folding angles in a normal state. The blade plate at the outermost side is connected with the adjusting mechanism, the second support rod is pushed away from the blade plate by the adjusting mechanism, the end part of the blade plate can move, the blade plate is stretched by the adjusting mechanism simultaneously, the hinge is opened, the distance between the blade plates is increased, the dead angle at the inner side of the blade plate can be more fully washed by spray water, and the cleaning effect is improved. The motor is reciprocal just reversing, makes the paddle open repeatedly constantly, folding action, realizes that spray assembly washes the paddle developments, and the washing effect is better.
The adjusting mechanism comprises a driving rod, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a pressure rod and a guide block, and the specific mounting structures of the components are matched with each other, so that the actions of pushing the second support rod and opening the blade plate can be simultaneously completed by only one driving action of the driving rod, and the equipment structure is more compact.
A positioning groove is formed in the second support rod, and the end portion of the leaf plate is embedded into the positioning groove. The constant head tank includes thick location portion and fixed part, and thick location portion is located the notch department of constant head tank to the width is great, even there is slight incline in the angle of acanthus leaf also can slide in thick location portion smoothly, and then continues to insert in the fixed part by accurate, firmly fixed.
When the driving rod rotates to the position, the first contact block is abutted to the end face of the second contact block to be in a conduction state, the first contact block and the second contact block of all the blade plates are conducted, and at the moment, the fact that all the blade plates are inserted into the positioning groove is shown, and the second support rod completes resetting. Because the contact blocks of each group are sequentially connected in series, when any one group of contact block I and the contact block II are not conducted, the whole circuit cannot be conducted, and at the moment, the demister can be continuously used only by checking the assembly state between the support rod II and the blade.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a demister portion of the present invention;
FIG. 3 is a schematic view of the installation of the adjustment mechanism of the present invention;
FIG. 4 is a schematic view of the adjustment mechanism of the present invention in operation when the louvers are opened;
fig. 5 is a schematic cross-sectional view of a strip aperture and a strip groove of the present invention.
Labeled as: 1. a dust remover; 2. a desulfurizing tower; 21. a tower body; 211. flat holes; 212. a guide groove; 213. a magnet block; 214. an organ cover; 22. an air inlet; 23. an air outlet; 24. slurry; 25. a slurry pump; 26. a guniting assembly; 27. a bubble net disk; 28. a demister; 281. a leaf plate; 2811. a strip-shaped groove; 2812. a strip-shaped hole; 2813. a first contact block; 2814. a second contact block; 2815. a conductive block; 282. a first support rod; 283. a second support rod; 2831. positioning a groove; 2832. a coarse positioning part; 2833. a fixed part; 284. a hinge; 285. an adjustment mechanism; 2851. a motor; 2852. a driving lever; 2853. a first connecting rod; 2854. a second connecting rod; 2855. a third connecting rod; 2856. a connecting rod IV; 28561. a follower; 2857. a pressure lever; 2858. a guide block; 28581. a guide hole; 286. a water pipe; 287. a spray head; 288. and (4) a water pump.
Detailed Description
Example 1
As shown in fig. 1, a waste gas pollutant purification system for waste lead storage battery treatment comprises a dust remover 1 and a desulfurization tower 2 which are communicated through a pipeline, wherein the dust remover 1 is positioned at the upstream of the desulfurization tower 2, the dust remover 1 is used for absorbing lead dust in smelting waste gas, and the desulfurization tower 2 is used for removing sulfur dioxide and residual small amount of lead dust in the smelting waste gas.
Similar to a conventional desulfurization tower, the desulfurization tower 2 of the present embodiment includes a tower body 21, the side wall and the top of the tower body 21 are respectively provided with an air inlet 22 and an air outlet 23, the lower portion of the air inlet 22 in the tower body 21 is filled with slurry 24, preferably, the slurry 24 is limestone slurry, a slurry spraying assembly 26 is installed above the air inlet 22 in the tower body 21, a slurry pump is installed outside the tower body 21, the slurry pump is connected with the slurry spraying assembly 26 through a pipeline, alkaline slurry is pumped into the slurry spraying assembly 26, and a bubble mesh disc 27 below is sprayed. Wherein, the bubble net dish 27 is fixed in the tower body 21, and is located the height between whitewashing subassembly 26 and air intake 22 for make waste gas distribute uniformly, waste gas evenly upwards flows behind the mesh of bubble net dish 27, fully contacts the reaction with thick liquid 24, realizes the desulfurization effect.
A demister 28 is installed above the guniting assembly 26 in the tower body 21 and is used for carrying out gas-liquid separation on the waste gas, so that the clean gas is discharged out of the tower body 21 from the air outlet 23, and the separated liquid returns downwards.
As shown in fig. 2 and 3, the demister 28 includes a plurality of vanes 281 arranged in parallel, and the abdomen of the vane 281 is bent to reflect the wet air flow multiple times and block the wet air flow from rising straight. After long-term use, a layer of scale block containing lead and sulfur condensate is formed on the surface of the blade plate 281, the blade plate 281 needs to be cleaned in time, and if the blade plate 281 is directly washed by water, the bent dead zone part is difficult to be washed clean.
In the present embodiment, the louver 281 and the mounting structure thereof are improved, wherein one end of the louver 281 is hinged to the first supporting rod 282, and the other end of the louver 281 is embedded in the second supporting rod 283, and the embodiment is described by taking the example that the upper end of the louver 281 is hinged to the first supporting rod 282, and the lower end of the louver 281 is embedded and fixed in the second supporting rod 283, but the lower end of the louver 281 may be hinged to the first supporting rod 282, and the upper end of the louver 281 is embedded and fixed in the second supporting rod 283. Hinges 284 are hinged between adjacent leaf plates 281, and the hinges 284 have a relatively small folding angle under normal state; the outermost louver 281 is connected with an adjusting mechanism 285, and the adjusting mechanism 285 is used for pushing the second stay bar 283 downwards away from the louver 281 and stretching the louver 281 at the same time to open the hinges 284 at a certain angle, so that the distance between the louvers 281 is increased, and the inner side of the louver 281 is convenient to spray and wash.
In order to wash the blade plate 281 more fully, a spray assembly for washing scale lumps on the surface of the blade plate 281 of the demister is installed in the desulfurization tower 2. The shower assembly includes a water pipe 286 and a plurality of shower heads 287 installed on the water pipe 286, and industrial water in the water tank is pumped into the water pipe 286 and the shower heads 287 by a water pump 288 to wash the vane 281.
Specifically, as shown in fig. 3, the adjusting mechanism 285 of the present embodiment includes a motor 2851, a driving lever 2852, a link one 2853, a link two 2854, a link three 2855, a link four 2856, a pressing lever 2857, and a guide block 2858. The motor 2851 is installed on the outer wall of tower body 21, installs the drive lever 2852 on the output shaft of motor 2851, and motor 2851 is used for driving drive lever 2852 forward and reverse rotation. The desulfurization tower 2 is provided with a flat hole 211 on the tower wall and a driving rod 2852 for avoiding rotation, the other end of the driving rod 2852 penetrates through the flat hole 211 on the tower body 21 and then extends into the tower body 21, and is hinged with a connecting rod one 2853, the connecting rod one 2853 is sequentially hinged with a connecting rod two 2854, a connecting rod three 2855 and a connecting rod four 2856 along the direction far away from the driving rod 2852, the other ends of the connecting rod two 2854, the connecting rod three 2855 and the connecting rod four 2856 are respectively hinged on a pressing rod 2857, a guide block 2858 and a blade 281 on the outermost side, wherein the blade 281 on the leftmost side and the rightmost side is provided with a strip-shaped groove 2811, and a roller-type follower 28561 is mounted at the end of the connecting rod four 2856, and when the driving rod 2852 rotates downwards, the connecting rod two 2854 drives the connecting rod four 2856 to rotate upwards, so that the follower 28561 rolls upwards along the strip-shaped groove 2811.
The guide block 2858 is fixed on the inner wall of the desulfurizing tower 2, a guide hole 28581 for guiding the lifting action of the pressure rod 2857 is arranged in the guide block 2858, and the lower end of the pressure rod 2857 penetrates through the guide hole 28581 to be fixedly connected with the second stay bar 283.
As shown in fig. 4, when the driving lever 2852 rotates downward, the lower end of the link one 2853 is pressed to rotate the inclined link one 2853 to tend to a vertical direction, the rotational displacement of the link one 2853 is decomposed into vertical and horizontal displacements, the vertical displacement of the upper end of the link one 2853 is compensated by the strip groove 2811, the horizontal displacement moves the link four 2856 and the vane 281 to the outside, so that the vane 281 is opened at a certain angle, and the folding angle of the hinge 284 is increased. Meanwhile, when the driving rod 2852 rotates downward, the driving rod 2857 is driven to move downward, so that the second support rod 283 moves downward and is away from the vane 281 until the vane 281 is separated from the second support rod 283.
More specifically, as shown in fig. 5, the outermost louver 281 is provided with a strip-shaped hole 2812 for passing the four connecting rods 2856 therethrough, the strip-shaped hole 2812 is also vertically arranged, the strip-shaped hole communicates with the strip-shaped groove 2811, and the hole width of the strip-shaped hole measured in the front-back direction is smaller than the width of the strip-shaped groove 2811, so that the follower 28561 does not slip out of the strip-shaped groove 2811. The four connecting rods 2856 are inserted into the strip-shaped holes 2812 and then installed in the strip-shaped grooves 2811, and the four connecting rods 2856 can swing in the strip-shaped holes. The strip groove 2811 of the blade can be formed by split splicing, and the four 2856 connecting rods and the follower are convenient to assemble.
The second brace 283 is provided with a row of positioning grooves 2831, and the end of the louver 281 is inserted into the positioning grooves 2831, so that the louver 281 is reliably fixed on the second brace 283 and does not sway left and right.
The inner wall of the tower body 21 is further provided with a guide groove 212 for guiding the lifting action of the second brace 283. Two ends of the second stay 283 are inserted into the guide grooves 212, respectively.
As shown in fig. 4, since the magnet blocks 213 are mounted in the guide groove 212 and at both ends of the second stay 283, and the mounting height of the magnet block 213 in the guide groove 212 corresponds to the height of the second stay 283 in a normal state, both ends of the second stay 283 are firmly attracted by the magnet blocks 213 in the guide groove 212 in a normal state, and the vane 281 is more reliably supported and fixed.
As shown in fig. 3, in the present embodiment, a organ cover 214 is fixedly installed in the flat hole 211 for sealing the flat hole 211 and preventing the airflow in the tower body 21 from flowing out of the flat hole 211. The organ cover 214 is fixedly connected to the upper and lower sides of the active rod 2852, and is folded or stretched along with the rotation of the active rod 2852, so that the active rod 2852 can be flexibly rotated. The gusset cover 214 is a high temperature and corrosion resistant material.
Example 2
As shown in fig. 3 and 4, in order to enable each paddle 281 to be accurately reset on the two struts 283 and be fixed by the two struts 283, in this embodiment, on the basis of embodiment 1, the positioning slot 2831 includes a coarse positioning portion 2832 and a fixing portion 2833, the coarse positioning portion 2832 is located at the notch of the positioning slot 2831, and the width of the coarse positioning portion 2832 is gradually reduced from the notch to the inside of the slot until the width of the coarse positioning portion is equal to that of the fixing portion 2833, so that when the two struts 283 are lifted upwards, even if the lower end of the paddle 281 has a certain deflection, the paddle 281 can smoothly slide into the positioning slot 2831 of the two struts 283.
The fixing part 2833 of the positioning groove is located at the lower side of the positioning groove, and the width of the fixing part is matched with the width of the lower end of the vane 281, so that the end of the vane 281 can be tightly fixed.
As shown in fig. 3 and 4, in order to automatically detect whether all the vanes 281 are accurately installed in the positioning slot 2831, in this embodiment, on the basis of embodiment 1, a first contact block 2813 and a second contact block 2814 are installed between adjacent vanes 281, preferably, the first contact block 2813 and the second contact block 2814 are both located right below the hinge 284, so as to reduce the impact of water flow.
The vane 281, the first support rod 282 and the second support rod 283 are all made of insulating materials, a conductive block 2815 is fixedly installed in each vane 281 in an embedded mode, the first contact block 2813 and the second contact block 2814 of each vane 281 are electrically connected with the corresponding conductive block 2815, each group of the first contact block 2813 and the second contact block 2814 are connected into a detection circuit in series, and a power supply and a prompter are further connected into the detection circuit in series. Each set of first contact 2813 and second contact 2814 corresponds to a switch. In the resetting process, when the driving rod 2852 rotates upwards to a certain position, the end faces of each set of first contact block 2813 and second contact block 2814 are just abutted against each other, so that the switch is in a conducting state. The detection circuit is turned on only when the first contact 2813 and the second contact 2814 of all the blades 281 are turned on, which means that all the blades 281 are reliably inserted into the corresponding positioning slots 2831, supported and fixed by the second support rods 283, and the indicator displays that the blades are reset to the right position. If the end faces of a group of the first contact block 2813 and the second contact block 2814 are not tightly attached, it is indicated that the vane 281 corresponding to the group of the contact blocks is not completely inserted into the corresponding positioning groove 2831, and the prompter does not send a successful prompt signal, and at this time, the assembly condition of the demister needs to be checked.
Spray assemblies are mounted on the upper side and the lower side of the demister 28 and used for washing the upper side and the lower side of the demister 28, so that the washing effect is more uniform.
The left side and the right side of the vane 281 are both provided with the adjusting mechanisms 285, the adjusting mechanisms 285 slightly expand the lower end of the vane 281 towards the left side and the right side at the same time, and because the vane 281 at the left side and the right side is subjected to two opposite pulling forces, the expansion action is more stable, and the completion degree is better.
The other structure of this embodiment is the same as embodiment 1.
The method for purifying the waste gas pollutants of the waste lead storage battery comprises the following steps:
and (3) carrying out high-temperature smelting on the lead-containing substance of the waste lead storage battery to extract high-purity lead. Waste gas generated during smelting is sent into a dust remover 1 to filter lead dust;
the filtered waste gas is sent into the desulfurizing tower 2 to react with the sprayed alkaline slurry 24 so as to remove sulfur dioxide in the waste gas, and the desulfurized flue gas is upwards subjected to gas-liquid separation by a demister 28 and then is discharged out of the desulfurizing tower 2 through an exhaust outlet;
the demister 28 is descaled periodically, when the surface of the vane 281 of the demister 28 is scaled, the motor 2851 of the adjusting mechanism 285 is started, the driving rod 2852 is rotated downwards, the driving rod 2852 presses the pressing rod 2857 and the second support rod 283 downwards, so that the lower end of the vane 281 is separated from the positioning groove 2831 of the second support rod 283, and the vane 281 can move; meanwhile, the driving rod 2852 drives the lower end of the first connecting rod 2853 to rotate downwards, the upper end of the first connecting rod 2853 drives the fourth connecting rod 2856 to rotate upwards, and the fourth connecting rod 2856 drives the blade 281 on the outermost side to rotate outwards by a small angle, so that the distance between the blade 281 is increased, and the flushing dead zone range is reduced; then, spraying high-pressure industrial water on the blade plates 281 from the upper side and the lower side to wash the scale blocks;
the motor 2851 rotates forward and backward in a reciprocating manner, so that the blade plate 281 is opened and folded repeatedly, different washing angles are provided for the spraying assembly, and the spraying assembly can dynamically wash the blade plate 281;
after the washing is completed, the motor 2851 rotates the driving rod 2852 upwards to return to the original inclined angle, the driving rod 2852 synchronously lifts the second supporting rod 283 and the folding blade 281, and the blade 281 is inserted into the positioning slot 2831 of the second supporting rod 283. At this time, each set of the first contact 2813 and the second contact 2814 are abutted, the detection circuit is conducted, and the prompter prompts that the vane 281 and the second support rod 283 are reset.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The waste gas pollutant purification system for waste lead storage battery treatment comprises a dust remover and a desulfurization tower which are communicated with each other, wherein the dust remover is positioned at the upstream of the desulfurization tower;
the dust remover is used for absorbing lead dust in the smelting waste gas;
the desulfurizing tower is used for the desorption to smelt the sulfur dioxide in the waste gas, install the defroster in the desulfurizing tower, its characterized in that:
the demister comprises a plurality of blades arranged in parallel, the abdomen of each blade is bent, one end of each blade is hinged with the first support rod, and the other end of each blade is embedded in the second support rod; hinges are hinged between the adjacent leaf plates, and the hinges have a relatively small folding angle in a normal state; the blade plate on the outermost side is connected with an adjusting mechanism, the adjusting mechanism is used for pushing the second support rod away from the blade plate and stretching the blade plate simultaneously, so that the hinge is opened to increase the distance between the blade plates;
a spraying assembly is arranged in the desulfurizing tower and is used for washing scale blocks on the surfaces of the blades of the demister;
the adjusting mechanism comprises a driving rod, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a pressure rod and a guide block, wherein the driving rod is rotatably arranged on the desulfurizing tower, the end part of the driving rod is hinged with the first connecting rod, the first connecting rod is sequentially hinged with the second connecting rod, the third connecting rod and the fourth connecting rod in the direction far away from the driving rod, and the other ends of the second connecting rod, the third connecting rod and the fourth connecting rod are respectively hinged on the pressure rod, the guide block and the blade plate on the outermost side; the guide block is fixed on the inner wall of the desulfurizing tower, a guide hole for guiding the lifting action of the pressure lever is arranged in the guide block, and the end part of the pressure lever is fixedly connected with the second support rod;
when the driving rod rotates downwards, the end part of the first connecting rod is pressed down, so that the inclined first connecting rod rotates to tend to the vertical direction, and the other end of the first connecting rod pulls the blade outwards; meanwhile, the driving rod drives the pressure rod to move downwards when rotating, so that the second support rod is far away from the blade plate;
the blade plate on the outermost side is provided with a strip-shaped groove, the end part of the four connecting rods is provided with a follower, and when the driving rod is rotated, the follower rolls along the strip-shaped groove.
2. The system for purifying exhaust gas pollutants according to claim 1, wherein a strip hole for passing a connecting rod four is formed on the outermost louver, the strip hole is communicated with the strip groove, the width of the strip hole is smaller than that of the strip groove, and the connecting rod four is inserted into the strip hole and then installed in the strip groove.
3. The exhaust gas pollutant purification system of claim 1, wherein a positioning groove is provided on the second brace rod, and an end of the louver is embedded in the positioning groove.
4. The exhaust pollutant purification system of claim 3, wherein the positioning slot comprises a coarse positioning portion and a fixed portion, the coarse positioning portion is located at a slot opening of the positioning slot, and the width of the coarse positioning portion is gradually reduced from the slot opening to the inside of the slot until the width of the coarse positioning portion is equal to that of the fixed portion; the fixing part is positioned in the groove and tightly fixes the end part of the blade.
5. The exhaust pollutant purification system of claim 3, wherein a first contact block and a second contact block are oppositely arranged between the adjacent blades, the first contact block and the second contact block are electrically connected with the conductive blocks in the blades, and each group of the first contact block and the second contact block is connected in series into the detection circuit; when the driving rod rotates to the position, the corresponding first contact blocks are abutted to the end faces of the second contact blocks to be in a conduction state, each first contact block and each second contact block are conducted, the detection circuit is conducted at the moment, and all the blades are reliably inserted into the positioning grooves.
6. The exhaust pollutant purification system of any one of claims 1 to 5, wherein a motor is mounted on an outer wall of the desulfurization tower, and an output shaft of the motor is connected with the driving rod; a flat hole is formed in the tower wall of the desulfurizing tower and is used for avoiding a driving rod to rotate; and an organ cover is arranged in the flat hole and used for sealing the flat hole, and the organ cover is fixedly connected with the driving rod and deforms along with the rotation of the driving rod.
7. The exhaust gas pollutant purification system of claim 6, wherein spray assemblies are mounted on both upper and lower sides of the demister for flushing the upper and lower sides of the demister; the left side and the right side of the blade plate are provided with the adjusting mechanisms, and the adjusting mechanisms are unfolded towards the left side and the right side simultaneously to form the upper ends or the lower ends of the blade plates.
8. A method for purifying exhaust gas pollutants for waste lead storage battery treatment, which is realized by the exhaust gas pollutants purification system of claim 7, and is characterized by comprising the following steps:
waste gas generated when the lead-containing substances of the waste lead storage batteries are smelted is sent into the dust remover to filter lead dust;
the filtered waste gas is sent into the desulfurizing tower for desulfurization, and the desulfurized flue gas is discharged out of the desulfurizing tower after upward gas-liquid separation through the demister;
when the surfaces of the blades of the demister are scaled, starting a motor of the adjusting mechanism, rotating the driving rod downwards to enable the adjusting mechanism to synchronously lower the second support rod and open the blades, increasing the distance between the blades, and spraying the blades from the upper side and the lower side;
the motor rotates forwards and backwards in a reciprocating manner, so that the blades are opened and folded repeatedly, and the spraying assembly is used for dynamically washing the blades;
after spraying, the adjusting mechanism resets the driving rod, so that the support rod supports and fixes the blade plate again.
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| CN116116203B (en) * | 2023-04-17 | 2023-07-07 | 江苏民生重工有限公司 | Flue gas desulfurization device |
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