CN117756140A - process in sodium carbonate production - Google Patents
process in sodium carbonate production Download PDFInfo
- Publication number
- CN117756140A CN117756140A CN202410195187.9A CN202410195187A CN117756140A CN 117756140 A CN117756140 A CN 117756140A CN 202410195187 A CN202410195187 A CN 202410195187A CN 117756140 A CN117756140 A CN 117756140A
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- China
- Prior art keywords
- driving
- pipe
- wall
- barrel
- thickener
- Prior art date
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 229910000029 sodium carbonate Inorganic materials 0.000 title claims description 14
- 239000002562 thickening agent Substances 0.000 claims abstract description 47
- 230000008719 thickening Effects 0.000 claims abstract description 36
- 238000003763 carbonization Methods 0.000 claims abstract description 35
- 239000000706 filtrate Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000007790 solid phase Substances 0.000 claims abstract description 17
- 239000002699 waste material Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 67
- 238000001125 extrusion Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 235000017550 sodium carbonate Nutrition 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 23
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 239000003513 alkali Substances 0.000 description 38
- 238000005192 partition Methods 0.000 description 12
- 238000001914 filtration Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 5
- 239000012452 mother liquor Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M sodium bicarbonate Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Landscapes
- Centrifugal Separators (AREA)
Abstract
The invention discloses a process in soda production, which relates to the technical field of soda production, and has the advantages of improving production efficiency, reducing emission and improving the dehydration efficiency of heavy soda slurry, and the technical scheme is as follows: comprises a carbonization tower, a thickener, a centrifuge, a mother barrel for storing waste liquid, a calciner and a thickening device; the carbonization tower outlet is provided with a pipeline which is connected with a thickener feed inlet, the thickener is provided with a discharge port and an overflow port, the thickener discharge port is provided with a pipeline which is connected with a centrifuge feed inlet, the thickener overflow port is provided with a pipeline which is connected with a mother barrel, the centrifuge is provided with a solid phase outlet and a filtrate outlet, the solid phase outlet of the centrifuge is connected with a calciner inlet by a conveying channel, the filtrate outlet of the centrifuge is provided with a pipeline which is connected with a thickening device, the thickening device is provided with a discharge port and a filtrate outlet, the thickening device discharge port is provided with a pipeline which is connected with the centrifuge feed inlet, and the filtrate outlet of the thickening device is provided with a pipeline which is connected with the mother barrel.
Description
Technical Field
the invention relates to the technical field of sodium carbonate production, in particular to a process in sodium carbonate production.
Background
In the current soda ash production, a carbonization tower reacts to generate NaHCO3Mother liquor, namely heavy alkali slurry, enters a thickener to increase the solid phase concentration of the heavy alkali slurry, then enters a centrifugal machine to be dehydrated, and filtrate from the centrifugal machine enters the thickener to be thickened for the second time.
However, since the filtrate from the centrifuge enters the thickener again, the heavy alkali slurry from the carbonization tower is affected or interrupted, so that the secondary thickening has the problem of low efficiency, and the defect of low concentration efficiency of the heavy alkali slurry is further reduced, so that the inventor develops a new technical scheme in the actual production process to solve the technical problem.
Disclosure of Invention
The invention aims to provide a process in soda production, which has the advantages of reducing the re-entering of filtrate from a centrifugal machine into a thickener and improving the concentration efficiency of heavy soda slurry.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a process in soda production, which comprises a carbonization tower, a thickener, a centrifuge, a mother barrel for storing waste liquid, a calciner and a thickening device;
The carbonization tower outlet is provided with a pipeline which is connected with a thickener feed inlet, the thickener is provided with a discharge hole and an overflow hole, the thickener discharge hole is provided with a pipeline which is connected with a centrifuge feed inlet, the thickener overflow hole is provided with a pipeline which is connected with a mother barrel, the centrifuge is provided with a solid phase outlet and a filtrate outlet, the solid phase outlet of the centrifuge is connected with a calciner inlet which is provided with a conveying channel, the filtrate outlet of the centrifuge is provided with a pipeline which is connected with a thickening device, the thickening device is provided with a discharge hole and a filtrate outlet, the thickening device discharge hole is provided with a pipeline which is connected with a centrifuge feed inlet, and the filtrate outlet of the thickening device is provided with a pipeline which is connected with a mother barrel.
By adopting the technical scheme, after the reaction of the carbonization tower to generate heavy alkali slurry, the heavy alkali slurry enters a thickener to increase the concentration of solid phase, the thickened heavy alkali slurry enters a centrifugal machine to carry out heavy alkali filtration, clear flow flowing out from an overflow port of the thickener enters a mother barrel, solid phase filtered by the centrifugal machine enters a calciner to be calcined, liquid phase filtered by the centrifugal machine enters a thickening device to be thickened, the thickened heavy alkali enters the centrifugal machine again to carry out heavy alkali filtration, and filtrate from a filtrate outlet of the thickening device enters the mother barrel; at the moment, filtrate from the centrifugal machine enters the thickening equipment, the equipment occupied area of the thickening equipment is smaller than that of the thickener, the whole process can be operated continuously, the concentrating efficiency of the heavy alkali mother liquor is improved, and the loss of heavy alkali in the filtrate is reduced.
preferably, a pre-thick device is arranged on a pipeline between the outlet of the carbonization tower and the feeding port of the thickener.
preferably, the pre-thick device comprises a placing barrel positioned between the carbonization tower and the thick device, the placing barrel is positioned on the ground, the placing barrel is a hollow barrel body with a cone at the lower end of an upper cylinder, the bottom of the placing barrel is supported off the ground through a plurality of support rods, the inner wall of the placing barrel is provided with four partition plates for dividing the space in the placing barrel into four chambers, the number of the partition plates is four, the upper ends of the partition plates are all connected through driving rings, and the driving rings are rotationally connected with the upper ends of the partition plates;
The outer wall of the placing barrel is circumferentially provided with a plurality of connecting rods, the outer sleeve of the placing barrel is provided with annular guide rings, one end of each connecting rod far away from the placing barrel is fixedly connected with one side wall of each guide ring, the bottom of each guide ring is provided with a sealing plate for sealing a gap between the guide ring and the outer wall of the placing barrel, the guide rings are communicated with connecting pipes communicated with a feeding hole of a thickener, openings are formed in the inner walls of the placing barrels corresponding to the four chambers, the openings are distributed towards the guide rings, sealing pieces for sealing the openings are arranged on the placing barrels, communicating pipes communicated with pipelines on the outlets of the carbonization towers are arranged on the driving rings, and driving pieces for driving the driving rings to rotate are arranged on the placing barrels;
the bottom of the placing barrel is provided with guide pipes which are respectively communicated with the four chambers, each guide pipe is connected with a feeding port of the centrifugal machine through a main pipe, and each guide pipe is provided with a stop valve.
Preferably, the opening is conical, one side with larger taper is close to the guide ring, the sealing piece comprises a conical block which is matched with the opening and seals the opening, a compression spring connected with one side surface of the conical block is arranged on the inner wall of the guide ring, and when the conical block seals the opening, the compression spring is in a compressed state.
Preferably, the driving piece is including rotating the revolving plate of connection at the driving ring inner wall, it is connected with water pipe and extrusion pole to slide on the revolving plate, water pipe and extrusion pole all appearance are the rectangle, and one end all extends the driving ring outer wall, the length size that the extrusion pole extended the driving ring outer wall is greater than the length that water pipe extended the driving ring outer wall, the centre bore has been seted up at the revolving plate center, the driving ring is equipped with the extension pole of a plurality of levels extension in the revolving plate lower extreme, and each the one end that the driving ring was kept away from to the extension pole is passed through the go-between and is connected, the go-between is coaxial with the centre bore, just be equipped with the drive shaft that penetrates in the centre bore on the revolving plate, be equipped with the prism coaxial with the drive shaft after the centre bore is passed to the drive shaft, the go-between inner wall is with prism complex rectangle, place the bucket upper end and be equipped with drive shaft reciprocates and pivoted driving piece.
Preferably, the driving piece is including setting up the U-shaped fixed plate in placing the bucket upper end, the fixed plate upper end just is worn out to the drive shaft upper end the fixed plate upper end rotates and is connected with main belt pulley, the drive shaft passes just from main belt pulley center drive shaft outer wall has seted up along drive shaft length direction distribution's spacing groove, main belt pulley central inner wall is equipped with the stopper that gets into the spacing inslot and slide with the spacing groove and be connected, it is connected with the secondary belt pulley to rotate on the fixed plate, the secondary belt pulley is driven by the motor that sets up at the fixed plate lower extreme face, connect through annular belt between main belt pulley and the secondary belt pulley, the fixed plate upper end is equipped with the cylinder, the piston rod of cylinder is connected through the diaphragm with the drive shaft upper end.
preferably, the pore wall of the central hole extends to the below of water pipe and extrusion rod, water pipe and extrusion rod lower extreme face all are equipped with the inclined plane, the higher one end in inclined plane is close to the central distribution of central hole, just the coaxial toper drive piece that is equipped with inclined plane complex of drive shaft outer wall, the drive piece is located the prism upper end, and when the drive shaft upwards moves and makes prism and go-between separate, drive piece drive water pipe and extrusion rod remove to the direction that keeps away from each other respectively, extrusion rod extrusion toper piece this moment for toper piece and opening separation, water pipe this moment is located the top of one of them cavity, the carbonization tower export is equipped with pipeline and water pipe intercommunication.
Preferably, the driving block outer wall is provided with connecting grooves distributed along the length direction of the driving block outer wall, the connecting grooves are respectively provided with two sliding blocks which slide in the connecting grooves, and the two sliding blocks are respectively corresponding to the water pipe and the extrusion rod.
Preferably, when the water pipe moves toward the inner wall of the placing barrel, one end of the water pipe away from the driving ring is tapered.
Preferably, the drive shaft is internally provided with a material passing hole distributed along the length direction of the drive shaft, the upper end of the drive shaft extends out of the transverse plate and is communicated with a pipeline arranged at the outlet of the carbonization tower through a telescopic pipe, one end of the telescopic pipe extends into the material passing hole, the outer wall of the drive shaft, which is close to the water passing pipe, is provided with a water guide pipe communicated with the water passing pipe, and the water guide pipe is a hose and is communicated with the bottom of the material passing hole.
The invention has the beneficial effects that: after the reaction of the carbonization tower to generate heavy alkali slurry, the heavy alkali slurry enters a thickener to increase the solid phase concentration, the thickened heavy alkali slurry enters a centrifugal machine to carry out heavy alkali filtration, clear flow flowing out of an overflow port of the thickener enters a mother barrel, solid phase filtered by the centrifugal machine enters a calciner to be calcined, liquid phase filtered by the centrifugal machine enters a thickening device to be thickened, the thickened heavy alkali enters the centrifugal machine again to carry out heavy alkali filtration, and filtrate from a filtrate outlet of the thickening device enters the mother barrel; at the moment, filtrate from the centrifugal machine enters the thickening equipment, the equipment occupied area of the thickening equipment is smaller than that of the thickener, the whole process can be operated continuously, the concentrating efficiency of the heavy alkali mother liquor is improved, and the loss of heavy alkali in the filtrate is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a process flow diagram of the present embodiment;
FIG. 2 is a process flow diagram of the present embodiment for embodying the pre-thicker device;
FIG. 3 is a schematic view of the structure of the pre-thickness device according to the present embodiment;
Fig. 4 is a schematic structural view showing a driving block according to the present embodiment;
fig. 5 is a schematic structural view for embodying the drive ring of the present embodiment.
Reference numerals illustrate:
In the figure: 1. a carbonization tower; 2. a thickener; 3. a mother barrel; 4. a centrifuge; 5. a calciner; 6. a thickening device; 7. a pre-thickness device; 71. placing a barrel; 711. a support rod; 72. a partition plate; 721. a drive ring; 73. a connecting rod; 731. a guide ring; 732. a closing plate; 74. an opening; 741. a conical block; 742. a compression spring; 743. a telescopic rod; 75. a flow guiding pipe; 8. a rotating plate; 81. a water pipe; 82. an extrusion rod; 83. a central bore; 84. an extension rod; 85. a connecting ring; 86. a drive shaft; 861. a prism; 87. a fixing plate; 871. a main pulley; 872. a limit groove; 873. a limiting block; 874. a secondary pulley; 875. a motor; 876. an endless belt; 877. a cylinder; 878. a cross plate; 9. an inclined surface; 91. a driving block; 92. a connecting groove; 93. a material passing hole; 94. a water guide pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A process in soda ash production, as shown in figure 1, comprises a carbonization tower 1, a thickener 2, a centrifuge 4, a mother barrel 3 for storing waste liquid, a calciner 5 and a thickening device 6; the carbonization tower 1 is an internal cooling carbonization tower, and the thickener 6 may be an existing thickener.
As shown in figure 1, the outlet of the carbonization tower 1 is provided with a pipeline which is connected with the feed inlet of the thickener 2, the thickener 2 is provided with a discharge port and an overflow port, the discharge port of the thickener 2 is provided with a pipeline which is connected with the feed inlet of the centrifugal machine 4, the overflow port of the thickener 2 is provided with a pipeline which is connected with the mother barrel 3, the centrifugal machine 4 is provided with a solid phase outlet and a filtrate outlet, the solid phase outlet of the centrifugal machine 4 is connected with the inlet of the calciner 5 by a conveying passage, one end of the conveying passage is positioned below the solid phase outlet of the centrifugal machine 4, the other end of the conveying passage is positioned above the inlet of the calciner 5, the filtrate outlet of the centrifugal machine 4 is provided with a pipeline which is connected with the thickening equipment 6, the thickening equipment 6 is provided with a discharge port and a filtrate outlet, the discharge port of the thickening equipment 6 is provided with a pipeline which is connected with the feed inlet of the centrifugal machine 4, and the filtrate outlet of the thickening equipment 6 is provided with a pipeline which is connected with the mother barrel 3.
As shown in figure 1, the solid phase in the heavy alkali slurry is calcined to obtain a product, and the liquid in a mother barrel 3 is waste liquid, so that the heavy alkali slurry is generated by the reaction of the carbonization tower 1, then enters a thickener 2 to increase the concentration of the solid phase, the thickened heavy alkali slurry enters a centrifugal machine 4 to carry out heavy alkali filtration, clear flow flowing out from an overflow port of the thickener 2 enters the mother barrel 3, the solid phase after heavy alkali filtration of the centrifugal machine 4 enters a calciner 5 to carry out calcination, the liquid phase after heavy alkali filtration of the centrifugal machine 4 enters a thickening device 6 to carry out thickening, the thickened heavy alkali enters the centrifugal machine 4 again to carry out heavy alkali filtration, and filtrate from a filtrate outlet of the thickening device 6 enters the mother barrel 3; at the moment, filtrate from the centrifugal machine 4 enters the thickening equipment 6, the equipment occupied area of the thickening equipment 6 is smaller than that of the thickener 2, the whole process can be operated continuously, the concentrating efficiency of the heavy alkali mother liquor is improved, and the loss of heavy alkali in the filtrate is reduced.
As shown in figure 2, a pre-thickener 7 is arranged on a pipeline between the outlet of the carbonization tower 1 and the feed inlet of the thickener 2. The pre-thickener 7 serves to pre-precipitate the heavy alkali slurry entering the thickener 2.
as shown in fig. 3 and 4, the pre-thick device 7 comprises a placing barrel 71 positioned between the carbonization tower 1 and the thick device 2, the placing barrel 71 is positioned on the ground, the placing barrel 71 is a hollow barrel body with a cone at the lower end of an upper cylinder, the bottom of the placing barrel 71 is supported off the ground through a plurality of supporting rods 711, the inner wall of the placing barrel 71 is provided with partition plates 72 which divide the space in the placing barrel 71 into four chambers, the partition plates 72 are vertically distributed, the number of the partition plates 72 is four, the upper ends of all the partition plates 72 are connected through driving rings 721, the driving rings 721 are rotatably connected with the upper ends of all the partition plates 72, and at the moment, the center of the driving rings 721 is coaxial with the interconnection points of all the partition plates 72;
As shown in fig. 3 and fig. 4, the outer wall of the placing barrel 71 is circumferentially provided with a plurality of connecting rods 73, the outer wall of the placing barrel 71 is sleeved with an annular guide ring 731, one end of each connecting rod 73 far away from the placing barrel 71 is fixedly connected with one side wall of the guide ring 731, the bottom of the guide ring 731 is provided with a sealing plate 732 for sealing a gap between the guide ring 731 and the outer wall of the placing barrel 71, the guide ring 731 is communicated with connecting pipes communicated with the feed inlet of the thickener 2, the inner wall of the placing barrel 71 corresponding to the four chambers is provided with openings 74, the openings 74 face the guide ring 731, the bottom opening wall of the openings 74 is lower than the upper end face of the partition plate 72, the placing barrel 71 is provided with a sealing piece for sealing the openings 74, the driving ring 721 is provided with a communicating pipe communicated with a pipeline on the outlet of the carbonization tower 1, at the moment, the communicating pipe is horizontally distributed on the driving ring 721, the pipeline on the outlet of the carbonization tower 1 is positioned on the central line of the driving ring 721, so that when the communicating pipe rotates along with the driving ring 721, the conveying heavy alkali slurry into the communicating pipe, the placing barrel 71 is provided with a driving piece for driving the rotation;
As shown in fig. 3 and 4, the bottom of the placement barrel 71 is provided with flow guide pipes 75 respectively communicated with the four chambers, each flow guide pipe 75 is connected with the feed inlet of the centrifugal machine 4 through a main pipe, and each flow guide pipe 75 is provided with a stop valve.
As shown in fig. 3 and 4, the opening 74 is tapered, and the side with larger taper is distributed near the guide ring 731, the upper port wall of the opening 74 may be horizontal, the sealing member includes a tapered block 741 that mates with the opening 74 and seals the opening 74, a compression spring 742 connected to one side of the tapered block 741 is disposed on the inner wall of the guide ring 731, when the tapered block 741 seals the opening 74, the compression spring 742 is in a compressed state, a telescopic rod 743 may be inserted into the compression spring 742, one end of the telescopic rod 743 is connected to the outer wall of the placement barrel 71, and the other end is connected to the inner wall of the guide ring 731, where the arrangement of the telescopic rod 743 reduces the occurrence of the compression spring 742 being bent. Therefore, when an external force pushes the tapered block 741 from the inside of the placement barrel 71, the tapered block 741 moves toward the guide ring 731, and the compression spring 742 is compressed, and the opening 74 is gradually opened along with the gradual movement of the tapered block 741, so that the clarified liquid in the corresponding chamber is discharged between the guide ring 731 and the placement barrel 71, and further into the thickener 2.
as shown in fig. 3 and 4, four chambers are provided in the placement barrel 71, so that the driving ring 721 drives the communicating pipes to rotate one by one to the upper parts of the chambers in sequence, and heavy alkali slurry is conveniently conveyed into the chambers for precipitation.
As shown in fig. 4 and 5, the driving member includes a rotating plate 8 rotatably connected to the inner wall of the driving ring 721, at this time, the connection between the driving ring 721 and the rotating plate 8 may be an annular or a plurality of separate supporting tables provided on the inner wall of the driving ring 721, the rotating plate 8 is placed on the supporting tables, the rotating plate 8 is slidably connected with a water pipe 81 and a pressing rod 82, at this time, the water pipe 81 and the pressing rod 82 may be located on the same straight line, the water pipe 81 at this time is a communicating pipe, the water pipe 81 and the pressing rod 82 are both rectangular, one end of each of which extends out of the driving ring 721, the pressing rod 82 extends out of the driving ring 721, and one end of each of which extends out of the driving ring 721 is greater than the water pipe 81, at this time, when one end of each of which is convenient to press rod 82 extends out of the placing barrel 71, one end of each of the water pipe 81 is still placed in the placing barrel 71, a central hole 83 is provided in the center of the rotating plate 8, one end of each of the extending rods 84 is far away from the driving ring 721, the driving ring 85 is connected by a connecting ring 85, the connecting ring 85 is provided with the central prism 86, and the driving ring 86 is provided with a driving shaft 86, which is connected with the driving ring 86, and the driving ring 86, which is disposed in the coaxial cylinder 86, and is matched with the driving ring 861.
referring to fig. 3, the driving member includes a U-shaped fixing plate 87 disposed at an upper end of the placement barrel 71, an upper end of the driving shaft 86 penetrates out of the upper end of the fixing plate 87 and is rotatably connected with a main pulley 871, the driving shaft 86 penetrates through a center of the main pulley 871, a limiting groove 872 distributed along a length direction of the driving shaft 86 is formed in an outer wall of the driving shaft 86, a limiting block 873 entering the limiting groove 872 and slidably connected with the limiting groove 872 is disposed on a central inner wall of the main pulley 871, a secondary pulley 874 is rotatably connected to the fixing plate 87, the secondary pulley 874 is driven by a motor 875 disposed at a lower end surface of the fixing plate 87, the main pulley 871 and the secondary pulley 874 are connected through an annular belt 876, an air cylinder 877 is disposed at an upper end of the fixing plate 87, and a piston rod of the air cylinder 877 is connected to an upper end of the driving shaft 86 through a transverse plate 878.
Referring to fig. 3, the cylinder 877 drives the driving shaft 86 to move up and down, the limiting block 873 slides in the limiting groove 872, and when the driving shaft 86 needs to rotate, the motor 875 drives the secondary pulley 874 to rotate, and then the annular belt 876 drives the primary pulley 871 to rotate, so that the primary pulley 871 drives the driving shaft 86 to rotate through the limiting block 873 and the limiting groove 872.
As shown in fig. 4 and 5, the hole wall of the central hole 83 extends to the lower part of the water pipe 81 and the extrusion rod 82, at this time, the size of the central hole 83 is larger than the size of the driving shaft 86, the lower end surfaces of the water pipe 81 and the extrusion rod 82 are respectively provided with an inclined surface 9, one higher end of the inclined surface 9 is close to the center of the central hole 83 and distributed, the outer wall of the driving shaft 86 is coaxially provided with a conical driving block 91 matched with the inclined surface 9, the driving block 91 is positioned at the upper end of the prism 861, and when the driving shaft 86 moves upwards to separate the prism 861 from the connecting ring 85, the driving block 91 drives the water pipe 81 and the extrusion rod 82 to move in the directions away from each other respectively, at this time, the extrusion rod 82 extrudes the conical block 741 to separate the conical block 741 from the opening 74, at this time, the water pipe 81 is positioned above one of the chambers, and the outlet of the carbonization tower 1 is provided with a pipeline communicated with the water pipe 81.
as shown in fig. 4 and 5, at this time, because the water pipe 81 and the extrusion rod 82 are relatively distributed, the four chambers are marked according to the clockwise direction, and the four chambers are respectively the chamber No. 1, the chamber No. 2, the chamber No. 3 and the chamber No. 4, when the water pipe 81 is used for draining liquid into the chamber No. 1, the extrusion rod 82 is positioned in the chamber No. 4, the extrusion rod 82 of the chamber No. 4 can extrude the conical block 741, the opening 74 of the chamber No. 4 is opened, the supernatant liquid on the upper layer of the chamber No. 4 is conveniently discharged from the chamber No. 4, along with the rotation of the driving ring 721, when the water pipe 81 is used for draining liquid into the chamber No. 2, the extrusion rod 82 is positioned in the chamber No. 3, the extrusion rod 82 of the chamber No. 3 can extrude the conical block 741, the opening 74 of the chamber No. 3 is conveniently opened, and the supernatant liquid on the upper layer of the chamber No. 3 is conveniently discharged from the chamber No. 3, so as to reciprocate.
As shown in fig. 4 and 5, in order to reset the pushed-out water pipe 81 and the extrusion rod 82, the outer wall of the driving block 91 is provided with connecting grooves 92 distributed along the length direction of the outer wall of the driving block 91, the connecting grooves 92 are respectively distributed corresponding to the water pipe 81 and the extrusion rod 82, and the two inclined surfaces 9 are respectively provided with a sliding block sliding in the connecting grooves 92, and at this time, the sliding blocks are fixed on the inclined surfaces 9. When the driving block 91 moves up and down, the slider slides in the connecting groove 92, and the water pipe 81 and the pressing rod 82 are reset and pushed out.
as shown in fig. 4 and 5, when the water passage pipe 81 moves toward the inner wall of the placement tub 71, one end of the water passage pipe 81 away from the driving ring 721 is tapered, at which time the discharge of the heavy alkali slurry is facilitated.
As shown in fig. 4 and 5, in order to facilitate connection between the pipe provided at the outlet of the carbonization tower 1 and the water pipe 81, a material through hole 93 is provided in the driving shaft 86, which is distributed along the length direction of the driving shaft 86, the upper end of the material through hole 93 extends out of the upper end of the driving shaft 86, the upper end of the driving shaft 86 extends out of the transverse plate 878 and is communicated with the pipe provided at the outlet of the carbonization tower 1 through a telescopic pipe, at this time, one end of the telescopic pipe extends into the material through hole 93, a water guide pipe 94 communicated with the water pipe 81 is provided on the outer wall of the driving shaft 86 near the water pipe 81, the water guide pipe 94 may be an inclined pipe or an L-shaped pipe, and the water guide pipe 94 is a hose and is communicated with the bottom of the material through hole 93. At this time, one end of the telescopic tube enters the material through hole 93 in the lifting process of the driving shaft 86, so that the telescopic tube can not stretch out and draw back, and when the telescopic tube is rotationally connected with the material through hole 93, the telescopic tube stretches out and draws back, and at this time, the structure can be selected according to the requirements of a user; the heavy alkali slurry of the pipeline arranged at the outlet of the carbonization tower 1 enters the water guide pipe 94 through the material through hole 93, then enters the water guide pipe 81 and is discharged into each cavity, and the water guide pipe 94 is a hose which is convenient for position change along with the movement of the driving shaft 86 and the water guide pipe 81.
Working principle: the pipe arranged at the outlet of the carbonization tower 1 discharges heavy alkali slurry into the water-passing pipe 81, the water-passing pipe 81 is positioned above one of the chambers, when the heavy alkali slurry in the chamber reaches a position higher than the bottom of the opening 74 after a period of time, the motor 875 drives the driving shaft 86 to rotate, and then the driving shaft 86 drives the driving ring 721 to rotate through the prism 861, so that the water-passing pipe 81 is brought above the adjacent chamber until the water-passing pipe 81 moves above the last chamber to discharge liquid, the cylinder 877 drives the driving shaft 86 to move upwards in the discharging process, the driving shaft 86 stops rotating, the prism 861 moves out of the connecting ring 85, the driving block 91 extrudes the inclined surface 9, the water-passing pipe 81 and the extrusion rod 82 move away from each other, the extrusion rod 82 extrudes the conical block 741 to the direction of the flow-guiding ring 731, the compression spring 742 is compressed, the opening 74 is gradually opened along with the gradual movement of the conical block 741, so that the clear liquid in the corresponding chamber is conveniently discharged between the flow-guiding ring 731 and the placing barrel 71, and then the thick liquid in the chamber is discharged, and the thick liquid in the inner wall of the chamber is just the chamber is discharged when the liquid in the upper side of the connecting ring 85 is reduced, and the liquid in the chamber is discharged, and the liquid is just the liquid in the chamber is discharged, and the inner wall of the chamber is impacted;
When the position of the water through pipe 81 needs to be changed, the air cylinder 877 drives the driving shaft 86 to move downwards, at this time, due to the cooperation of the sliding block and the connecting groove 92, the water through pipe 81 and the extrusion rod 82 move towards the direction close to each other, and then the extrusion rod 82 is positioned in the placement barrel 71, so that the conical block 741 resets under the action of the compression spring 742, the opening 74 is closed again, the water draining process in one of the chambers can be realized through the structure, the opposite chamber performs the water draining operation, and at the moment, the gravity precipitation is performed on the heavy alkali slurry in each chamber, and the precipitated liquid enters the thickener 2 conveniently.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. The process in the production of sodium carbonate is characterized by comprising a carbonization tower (1), a thickener (2), a centrifuge (4), a mother barrel (3) for storing waste liquid, a calciner (5) and a thickening device (6);
The carbonization tower (1) outlet is provided with a pipeline connected with a feeding port of the thickener (2), the thickener (2) is provided with a discharging port and an overflow port, the discharging port of the thickener (2) is provided with a pipeline connected with a feeding port of the centrifugal machine (4), the overflow port of the thickener (2) is provided with a pipeline connected with the mother barrel (3), the centrifugal machine (4) is provided with a solid phase outlet and a filtrate outlet, the solid phase outlet of the centrifugal machine (4) is connected with a conveying channel at the inlet of the calciner (5), the filtrate outlet of the centrifugal machine (4) is provided with a pipeline connected with a thickening device (6), the thickening device (6) is provided with a discharging port and a filtrate outlet, the discharging port of the thickening device (6) is provided with a pipeline connected with the feeding port of the centrifugal machine (4), and the filtrate outlet of the thickening device (6) is provided with a pipeline connected with the mother barrel (3).
a pre-thickening device (7) is arranged on a pipeline between the outlet of the carbonization tower (1) and the feeding port of the thickener (2);
The pre-thick device (7) comprises a placing barrel (71) positioned between a carbonization tower (1) and a thick device (2), the placing barrel (71) is positioned on the ground, the placing barrel (71) is a hollow barrel body with a cone at the lower end of an upper cylinder, the bottom of the placing barrel (71) is supported away from the ground through a plurality of support rods (711), the inner wall of the placing barrel (71) is provided with separation plates (72) which divide the inner space of the placing barrel (71) into four chambers, the number of the separation plates (72) is four, the upper ends of the separation plates (72) are all connected through driving rings (721), and the driving rings (721) are rotationally connected with the upper ends of the separation plates (72);
The device comprises a placing barrel (71), wherein a plurality of connecting rods (73) are circumferentially arranged on the outer wall of the placing barrel (71), annular guide rings (731) are sleeved outside the placing barrel (71), one end, far away from the placing barrel (71), of each connecting rod (73) is fixedly connected with one side wall of each guide ring (731), a sealing plate (732) for sealing a gap between the guide rings (731) and the outer wall of the placing barrel (71) is arranged at the bottom of each guide ring (731), connecting pipes communicated with a feed inlet of a thickener (2) are communicated with each guide ring (731), openings (74) are formed in the inner wall of the placing barrel (71) corresponding to the four chambers, the openings (74) are distributed towards the guide rings (731), sealing pieces for sealing the openings (74) are arranged on the placing barrel (71), communicating pipes communicated with pipelines on an outlet of a carbonization tower (1) are arranged on the driving rings (721), and driving pieces for driving the driving rings (721) to rotate are arranged on the placing barrel (71);
The bottom of the placing barrel (71) is provided with guide pipes (75) which are respectively communicated with the four chambers, each guide pipe (75) is connected with a feeding port of the centrifugal machine (4) through a main pipe, and each guide pipe (75) is provided with a stop valve.
2. A process in soda ash production according to claim 1, characterized in that the opening (74) is conical, and the side with larger taper is distributed near the guide ring (731), the sealing piece comprises a conical block (741) which is matched with the opening (74) and seals the opening (74), a compression spring (742) connected with one side of the conical block (741) is arranged on the inner wall of the guide ring (731), and when the conical block (741) seals the opening (74), the compression spring (742) is in a compressed state.
3. The process in soda ash production according to claim 2, wherein the driving member comprises a rotating plate (8) rotatably connected to the inner wall of the driving ring (721), the rotating plate (8) is slidably connected with a water through pipe (81) and a squeezing rod (82), the water through pipe (81) and the squeezing rod (82) are rectangular in shape, one ends of the water through pipe and the squeezing rod (82) extend out of the outer wall of the driving ring (721), the squeezing rod (82) extends out of the driving ring (721) to a length greater than the length of the water through pipe (81) extending out of the outer wall of the driving ring (721), a central hole (83) is formed in the center of the rotating plate (8), the driving ring (721) is provided with a plurality of horizontally extending rods (84) at the lower end of the rotating plate (8), one end of each extending rod (84) far away from the driving ring (721) is connected with the central hole (83) through a connecting ring (85), a driving shaft (86) penetrating into the central hole (83) is arranged on the rotating plate (8), the driving shaft (86) penetrates into the central hole (83), the driving shaft (86) is coaxially penetrates through the central hole (861) and is matched with the inner wall (861), the upper end of the placing barrel (71) is provided with a driving piece which drives the driving shaft (86) to move up and down and rotate.
4. A process in soda ash production as claimed in claim 3, characterized in that the driving member comprises a U-shaped fixing plate (87) arranged at the upper end of the placing barrel (71), the upper end of the driving shaft (86) penetrates out of the upper end of the fixing plate (87) and the upper end of the fixing plate (87) is rotationally connected with a main belt pulley (871), the driving shaft (86) penetrates through the center of the main belt pulley (871) and the outer wall of the driving shaft (86) is provided with limiting grooves (872) distributed along the length direction of the driving shaft (86), the center inner wall of the main belt pulley (871) is provided with limiting blocks (873) which enter the limiting grooves (872) and are slidingly connected with the limiting grooves (872), the fixing plate (87) is rotationally connected with a secondary belt pulley (874), the secondary belt pulley (874) is driven by a motor (875) arranged at the lower end surface of the fixing plate (87), the main belt pulley (871) and the secondary belt pulley (874) are connected through a circular belt (876), the upper end of the fixing plate (87) is provided with limiting blocks (877), and the upper end of the driving shaft (877) is connected with a cylinder rod (8).
5. A process in soda ash production as claimed in claim 3 or 4, characterized in that the hole wall of the central hole (83) extends to the lower part of the water pipe (81) and the extrusion rod (82), the lower end surfaces of the water pipe (81) and the extrusion rod (82) are respectively provided with inclined surfaces (9), the higher end of the inclined surfaces (9) is close to the center of the central hole (83), the outer wall of the driving shaft (86) is coaxially provided with conical driving blocks (91) matched with the inclined surfaces (9), the driving blocks (91) are positioned at the upper ends of the prisms (861), and when the driving shaft (86) moves upwards to separate the prisms (861) from the connecting ring (85), the driving blocks (91) drive the water pipe (81) and the extrusion rod (82) to move in the directions away from each other respectively, the extrusion rod (82) extrudes the conical blocks (741) to separate the conical blocks (741) from the openings (74), the water pipe (81) is positioned above one of the chambers, and the outlet pipe of the carbonization tower (1) is provided with the water pipe (81) to be communicated with the water pipe.
6. the process in soda ash production according to claim 5, characterized in that the outer wall of the driving block (91) is provided with connecting grooves (92) distributed along the length direction of the outer wall of the driving block (91), the connecting grooves (92) are respectively distributed corresponding to the water through pipe (81) and the extrusion rod (82), and the two inclined surfaces (9) are respectively provided with sliding blocks sliding in the connecting grooves (92).
7. A process in the production of soda ash as defined in claim 6, characterized in that when the water pipe (81) moves toward the inner wall of the placement barrel (71), the end of the water pipe (81) away from the drive ring (721) is tapered.
8. The process in soda ash production according to claim 4, characterized in that a material through hole (93) distributed along the length direction of the driving shaft (86) is formed in the driving shaft (86), a transverse plate (878) is extended from the upper end of the driving shaft (86) and is communicated with an outlet of the carbonization tower (1) through a telescopic pipe, at the moment, one end of the telescopic pipe extends into the material through hole (93), a water guide pipe (94) communicated with the water through pipe (81) is arranged on the outer wall, close to the water through pipe (81), of the driving shaft (86), and the water guide pipe (94) is a hose and is communicated with the bottom of the material through hole (93).
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738836A (en) * | 1986-10-27 | 1988-04-19 | General Chemical Corporation | Preparation of high bulk density anhydrous sodium carbonate crystals |
| CN1413909A (en) * | 2002-02-10 | 2003-04-30 | 江苏德邦化学工业集团有限公司 | Method for separating crystal slurry in synthetic heavy soda ash procedure |
| CN1676464A (en) * | 2004-04-01 | 2005-10-05 | 大连化工研究设计院 | Production process and apparatus for separating heavy alkali magma |
| CN102502717A (en) * | 2011-11-10 | 2012-06-20 | 湖北双环科技股份有限公司 | Method for producing low-salt high-quality heavy sodium carbonate |
| CN202542889U (en) * | 2012-03-02 | 2012-11-21 | 湘潭碱业有限公司 | Soda production system |
| CN203474478U (en) * | 2013-09-27 | 2014-03-12 | 山西阳煤丰喜肥业(集团)有限责任公司 | System for co-producing ammonium carbonate by adopting melamine tail gas |
| CN108298568A (en) * | 2018-01-26 | 2018-07-20 | 安徽德邦化工有限公司 | A kind of heavy alkali filtrate stiff technique |
| CN212024794U (en) * | 2019-12-04 | 2020-11-27 | 天津渤化永利化工股份有限公司 | Device for coproducing feed-grade and food-grade baking soda by heavy alkali wet decomposition method |
| CN113830795A (en) * | 2021-10-30 | 2021-12-24 | 山西长林能源科技有限公司 | Using sodium sulfate and CO2Equipment and method for producing sodium carbonate and ammonium sulfate |
| CN114162839A (en) * | 2021-11-30 | 2022-03-11 | 衡阳爱洁科技股份有限公司 | Device for preparing ammonium chloride by co-production of sodium bicarbonate |
| CN116332204A (en) * | 2023-04-17 | 2023-06-27 | 重庆和友实业股份有限公司 | Improved method for producing sodium carbonate |
-
2024
- 2024-02-22 CN CN202410195187.9A patent/CN117756140B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738836A (en) * | 1986-10-27 | 1988-04-19 | General Chemical Corporation | Preparation of high bulk density anhydrous sodium carbonate crystals |
| CN1413909A (en) * | 2002-02-10 | 2003-04-30 | 江苏德邦化学工业集团有限公司 | Method for separating crystal slurry in synthetic heavy soda ash procedure |
| CN1676464A (en) * | 2004-04-01 | 2005-10-05 | 大连化工研究设计院 | Production process and apparatus for separating heavy alkali magma |
| CN102502717A (en) * | 2011-11-10 | 2012-06-20 | 湖北双环科技股份有限公司 | Method for producing low-salt high-quality heavy sodium carbonate |
| CN202542889U (en) * | 2012-03-02 | 2012-11-21 | 湘潭碱业有限公司 | Soda production system |
| CN203474478U (en) * | 2013-09-27 | 2014-03-12 | 山西阳煤丰喜肥业(集团)有限责任公司 | System for co-producing ammonium carbonate by adopting melamine tail gas |
| CN108298568A (en) * | 2018-01-26 | 2018-07-20 | 安徽德邦化工有限公司 | A kind of heavy alkali filtrate stiff technique |
| CN212024794U (en) * | 2019-12-04 | 2020-11-27 | 天津渤化永利化工股份有限公司 | Device for coproducing feed-grade and food-grade baking soda by heavy alkali wet decomposition method |
| CN113830795A (en) * | 2021-10-30 | 2021-12-24 | 山西长林能源科技有限公司 | Using sodium sulfate and CO2Equipment and method for producing sodium carbonate and ammonium sulfate |
| CN114162839A (en) * | 2021-11-30 | 2022-03-11 | 衡阳爱洁科技股份有限公司 | Device for preparing ammonium chloride by co-production of sodium bicarbonate |
| CN116332204A (en) * | 2023-04-17 | 2023-06-27 | 重庆和友实业股份有限公司 | Improved method for producing sodium carbonate |
Non-Patent Citations (2)
| Title |
|---|
| 李发荣: "液相水合法生产重质纯碱技术的开发应用", 《盐业与化工》, vol. 43, no. 10, 31 October 2014 (2014-10-31), pages 49 - 54 * |
| 王小飞等: "重碱离心机滤液流程改造及效益分析", 《纯碱工业》, 31 December 2018 (2018-12-31), pages 21 - 23 * |
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