CN112595097B - Calcined soda calciner equipment - Google Patents
Calcined soda calciner equipment Download PDFInfo
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- CN112595097B CN112595097B CN202011539107.5A CN202011539107A CN112595097B CN 112595097 B CN112595097 B CN 112595097B CN 202011539107 A CN202011539107 A CN 202011539107A CN 112595097 B CN112595097 B CN 112595097B
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- soda
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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 35
- 230000007423 decrease Effects 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 35
- 239000003513 alkali Substances 0.000 claims description 31
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 6
- 238000001354 calcination Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/22—Rotary drums; Supports therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/32—Arrangement of devices for charging
- F27B7/3205—Charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/32—Arrangement of devices for charging
- F27B2007/3282—Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to the technical field of soda production and processing equipment, in particular to soda calciner equipment, which comprises a furnace body which is obliquely arranged, wherein the furnace body is supported and fixed through a first supporting device and a second supporting device in sequence, the height of the furnace body gradually decreases from a furnace end to a furnace tail, and the supporting height of the first supporting device is larger than that of the second supporting device; the middle part of the furnace body is connected with a rotary driving device, and the rotary driving device enables the furnace body to roll and rotate on the first supporting device and the second supporting device; an axial reciprocating pushing device is cooperatively arranged at the first supporting device or the second supporting device, and the axial reciprocating pushing device enables the furnace body to rotate and simultaneously to axially reciprocate. The invention optimizes and improves the structure of the furnace body, utilizes the axial pushing device to adjust the parts of the furnace body and the supporting device bearing the load, avoids structural deformation caused by stress concentration, reduces the frequency of overhauling and maintenance, and improves the production efficiency.
Description
Technical Field
The invention relates to the technical field of soda production and processing equipment, in particular to soda calciner equipment.
Background
At present, the light ash calciner for the domestic soda industry has the specification of a maximum calciner with the diameter phi of 3.6m and the maximum single production capacity scale of 30 ten thousand tons per year, and the soda plant has the specification of larger and larger scale, and the soda plant matched calciner can only select the largest 30 ten thousand tons per year equipment, so that the problems of more equipment matched sets, more matched equipment, large occupied area and the like are solved, and particularly in the domestic development of the natural soda project at present, the project production capacity scale is far larger than that of the general soda project, and the calciner with larger production capacity is required.
The reasons for the low production of the calciner adopted in the existing soda production also comprise the structural defects of equipment, such as frequent damage of the calciner in the production process, repeated shutdown maintenance and repair are required, and the actual production efficiency is low.
Therefore, the structure of the existing soda production and processing equipment has defects, and in order to improve the production capacity of soda, the structure of the production equipment can be improved and adjusted, so that a more reasonable technical scheme is required to be provided, and the defects in the prior art are overcome.
Disclosure of Invention
In order to solve the defects in the prior art mentioned in the above, the invention provides a soda calciner device, which aims to optimize the structure of the calciner device, not only improve the production capacity of the calciner per unit time, but also reduce the damage and error frequency of the calciner, reduce the overhaul and maintenance times, thereby improving the production efficiency and increasing the yield.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The soda calciner equipment comprises a furnace body which is obliquely arranged, wherein the furnace body is supported and fixed through a first supporting device and a second supporting device in sequence, the height of the furnace body gradually decreases from a furnace end to a furnace tail, and the supporting height of the first supporting device is larger than that of the second supporting device; the middle part of the furnace body is connected with a rotary driving device, and the rotary driving device enables the furnace body to roll and rotate on the first supporting device and the second supporting device; an axial reciprocating pushing device is cooperatively arranged at the first supporting device or the second supporting device, and the axial reciprocating pushing device enables the furnace body to rotate and simultaneously to axially reciprocate.
The calciner equipment disclosed by the above supports the furnace body through the first supporting device and the second supporting device, and when the furnace body rotates, the first supporting device and the second supporting device also play a role in helping the rotation; because of the long-time large load between the furnace body and the first supporting device and the second supporting device, the contact position needs to be adjusted, otherwise, the furnace body is contacted with a fixed position for a long time and bears the load, and the contact position is deformed in both a static state and a rotary state; therefore, the position of the furnace body is axially adjusted through the axial reciprocating pushing device, particularly in the rotation process, the furnace body is enabled to apply balanced load to the first supporting device and the second supporting device, the position bearing the load is not fixed, and therefore damage to the contact position of the furnace body and the first supporting device or the second supporting device can be reduced.
Further, the axial reciprocating pushing device may adopt various specific possible structures, and one possible scheme is given here: the axial reciprocating pushing device comprises a pair of supports which are oppositely arranged, the two supports are fixedly connected through a sliding shaft, a reciprocating pushing assembly is slidably arranged on the sliding shaft, a hydraulic cylinder is arranged on one support, a hydraulic push rod is arranged in the hydraulic cylinder, and the hydraulic push rod is connected with the reciprocating pushing assembly and drives the reciprocating pushing assembly to axially move along the furnace body; the reciprocating pushing component is in contact fit with the furnace body. When the device is arranged, the reciprocating pushing component is contacted with the furnace body, and when the reciprocating pushing component axially moves under the action of the hydraulic push rod, the furnace body can be pushed to axially move.
Still further, the available structure of the shuttle assembly is not uniquely determined, and here the optimization is performed and the following specific possible solutions are given: the reciprocating pushing component comprises a sliding seat arranged on the sliding shaft in a sliding way and a baffle wheel arranged on the sliding seat in a rotating way, the sliding seat is connected with the hydraulic push rod in a matching way, and the baffle wheel is in contact with the furnace body in a matching way. The catch wheel is matched with the furnace body in a contact manner, so that the furnace body can conveniently rotate, and when the furnace body rotates, the catch wheel automatically transmits along with the furnace body, and meanwhile, stable pushing acting force can be provided.
Further, the furnace body is used as equipment for accommodating raw materials for calcining, is not directly contacted with the supporting device and the axial pushing device, and is optimally described herein, and the following specific and feasible scheme is given: the outer wall of the furnace body is coaxially sleeved with a rolling ring, and the baffle wheel is in abutting contact with the side part of the rolling ring. The rolling ring and the furnace body synchronously rotate, and when the furnace body rotates, the rolling ring synchronously rotates; and the rolling ring is axially fixed on the outer wall of the furnace body, and when the baffle wheel abuts against the rolling ring, the furnace body is synchronously abutted against.
Further, the first supporting device and the second supporting device disclosed above may also adopt various possible structures, and the following specific possible schemes are optimized and listed here: the first supporting device and the second supporting device comprise supporting seats, riding wheels for supporting the furnace body are arranged on the supporting seats, and the riding wheels are in contact fit with the outer circumferential surface of the rolling ring. The number of the riding wheels is a plurality, and when the furnace body rotates, the riding wheels rotate to assist the rotation of the furnace body.
Further, in order to strengthen the protection of the furnace body structure, the connection structure of the furnace body and the rolling ring is optimized, and the following specific and feasible scheme is provided: a lining structure is arranged between the rolling ring and the furnace body and comprises a plurality of backing plates which are uniformly arranged at intervals along the circumference of the outer wall of the furnace body, and supporting blocks are attached to the bottom surfaces of the backing plates.
Still further, the supporting block is provided with a through hole, and the backing plate is in fit connection with the supporting block at the orifice of the through hole; in order to fix the backing plate, a pressing plate and a baffle are further arranged on the outer wall of the furnace body, and the pressing plate and the baffle are respectively abutted against one end of the backing plate.
Further, the rotary driving device is used as a power source for the rotation of the furnace body, and the following specific and feasible scheme can be adopted: the rotary driving device comprises a driver and a transmission mechanism which are connected and matched, and a driving wheel structure which is connected and transmitted with the transmission mechanism is arranged at the furnace body. The driver can generally adopt motors and the like, the transmission mechanism can adopt a gear transmission box and other structures, the driving wheel structure can adopt gears, belt pulleys and other structures, and the driving wheel is matched with the furnace body.
Further, the structure of the furnace body is optimized, and the following specific and feasible scheme is given: the furnace body is characterized in that an alkali outlet and a discharging cover are arranged at the furnace tail of the furnace body, the discharging cover comprises a cover part opposite to the alkali outlet and a friction ring coaxially arranged with the cover part and in sliding fit, an elastic expansion plate is arranged between the friction ring and the cover part, and an annular corrugated concave-convex structure concentric with the alkali outlet is arranged on the elastic expansion plate. When the furnace body rotates to discharge, the alkali outlet and the friction ring move relatively, the alkali outlet is covered by the discharge cover and sealed by the elastic expansion plate, so that the airtight performance of the alkali outlet can be ensured, and the rate of finished products of calcined products in the furnace body can be ensured; because of the good deformation capability of the elastic expansion plate in the radial and axial directions, the air tightness at the alkali outlet can be maintained after long-time use.
Further, the structure at the alkali outlet is optimized, and the following specific and feasible scheme is given as follows: the alkali outlet is provided with a blocking ring structure, the cover part is provided with an elastic abutting structure, and the elastic abutting structure enables the friction ring to be tightly attached to the blocking ring structure. When the friction ring is arranged in such a way, the elastic abutting structure pushes or pulls the friction ring to the blocking ring structure, and a friction sealing surface is formed between the friction ring and the blocking ring structure.
Further, the structure of the furnace body is continuously optimized, and the following specific and feasible scheme is provided: an external premixing device is arranged at the furnace end of the furnace body and comprises a mixing bin, a plurality of raw material inlets are arranged on the mixing bin, and a stirring shaft is arranged in the mixing bin; the external premixing equipment also comprises a feeding channel which is communicated with the mixing bin and the furnace body, and the premixed raw materials enter the furnace body through the feeding channel.
Compared with the prior art, the invention has the following beneficial effects:
the invention optimizes and improves the structure of the furnace body, utilizes the axial pushing device to adjust the parts of the furnace body and the supporting device bearing the load, avoids structural deformation caused by stress concentration, reduces the frequency of overhauling and maintenance, and improves the production efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the composition structure and a schematic enlarged partial structure of the calciner equipment in side view.
Fig. 2 is a schematic diagram of the composition structure and an enlarged partial structure of the calciner equipment in a plan view.
FIG. 3 is a schematic diagram of the structure of the axial pushing device and the furnace body.
Fig. 4 is a schematic view of the structure of the axial pushing device.
Fig. 5 is a schematic diagram of the fitting structure of the rolling ring and the backing plate.
FIG. 6 is a schematic cross-sectional view of the rolling ring and backing plate.
FIG. 7 is a schematic view of the mating structure of the rolling ring and the backing plate at another view angle.
Fig. 8 is an enlarged schematic view of a partial structure at the alkali outlet.
In the above figures, the meaning of each symbol is: 1. a furnace body; 2. a first support structure; 3. a second support structure; 4. a second drive wheel; 5. a driver; 6. a transmission mechanism; 7. a first drive wheel; 8. external premixing equipment; 801. a raw material inlet; 9. a feed channel; 10. an exhaust port; 11. sealing the feed; 12. a discharge cover; 1201. a connecting arm; 1202. a spring; 1203. a friction ring; 1204. an elastic expansion plate; 13. a steam device; 14. a backing plate; 15. a rolling ring; 16. a reciprocating pushing assembly; 17. a support; 18. a sliding seat; 19. a support block; 1901. a through hole; 20. a pressing plate; 21. a baffle; 22. a vertical rib; 23. a baffle ring structure; 24. a hydraulic cylinder; 25. a hydraulic push rod; 26. a lubrication pipe; 27. a slide shaft; 28. a sliding sleeve; 29. and (5) a wheel seat.
Detailed Description
The invention is further illustrated by the following description of specific embodiments in conjunction with the accompanying drawings.
It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention. Specific structural and functional details disclosed herein are merely representative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.
Examples
Aiming at the conditions that the existing soda calciner has low production efficiency and needs to be overhauled and maintained frequently, the structure of the soda calciner is optimized and improved, the frequency of overhauling and maintenance is reduced, and the production efficiency is improved.
Specifically, the technical scheme disclosed in this embodiment is as follows:
As shown in fig. 1 and 2, the soda calciner equipment comprises a furnace body 1 which is obliquely arranged, wherein the furnace body 1 is supported and fixed through a first supporting device and a second supporting device in sequence, the height of the furnace body 1 gradually decreases from a furnace end to a furnace tail, and the supporting height of the first supporting device is larger than that of the second supporting device; the middle part of the furnace body 1 is connected with a rotary driving device, and the rotary driving device enables the furnace body 1 to roll and rotate on a first supporting device and a second supporting device; an axial reciprocating pushing device is cooperatively arranged at the first supporting device or the second supporting device, and the axial reciprocating pushing device makes the furnace body 1 rotate and simultaneously make reciprocating displacement in the axial direction.
The calciner equipment disclosed by the above supports the furnace body 1 through the first supporting device and the second supporting device, and when the furnace body 1 rotates, the first supporting device and the second supporting device also play a role in helping the rotation; because of the long-time large load between the furnace body 1 and the first supporting device and the second supporting device, the contact position needs to be adjusted, otherwise, the furnace body is contacted and bears the load at a fixed position for a long time, and deformation of the contact position can be caused in both a static state and a rotary state; therefore, the position of the furnace body 1 is axially adjusted through the axial reciprocating pushing device, particularly in the rotation process, the furnace body 1 applies balanced load to the first supporting device and the second supporting device, and the position bearing the load is not fixed, so that the damage of the contact position of the furnace body 1 and the first supporting device or the second supporting device can be reduced.
Preferably, the first supporting device and the second supporting device are arranged through the mounting table, and the height of the mounting table can be set according to the arranged height requirement, so that the positions of the first supporting device and the second supporting device are adjusted.
In some embodiments, a structure, such as a wheel-like structure, is provided between the furnace body 1 and the first and second support means for facilitating the swiveling. The furnace body 1 as equipment for containing raw materials for calcination is not directly contacted with the supporting device and the axial pushing device, and the optimization is described here, and the following specific and feasible scheme is given as follows: the outer wall of the furnace body 1 is coaxially sleeved with a rolling ring 15.
Preferably, in this embodiment, the first supporting device and the second supporting device adopt the following specific possible schemes: the first supporting device and the second supporting device comprise supporting seats, riding wheels for supporting the furnace body 1 are arranged on the supporting seats, and the riding wheels are in contact fit with the outer circumferential surface of the rolling ring 15 arranged on the outer wall of the furnace body 1. The number of the riding wheels is a plurality, and when the furnace body 1 rotates, the riding wheels rotate to assist the rotation of the furnace body 1.
As shown in fig. 3 and fig. 4, the axial reciprocating pushing device may adopt various specific possible structures, and this embodiment adopts a possible scheme: the axial reciprocating pushing device comprises a pair of supports 17 which are oppositely arranged, a sliding shaft 27 is connected between the two supports, a reciprocating pushing component is arranged on the sliding shaft 27 in a sliding manner, a double-acting hydraulic cylinder 24 is arranged on one support 17, a hydraulic push rod 25 is arranged in the hydraulic cylinder 24, and the hydraulic push rod 25 is connected with the reciprocating pushing component 16 and drives the reciprocating pushing component 16 to axially move along the furnace body 1; the reciprocating pushing component 16 is in contact fit with the furnace body 1. When the reciprocating pushing assembly 16 contacts with the furnace body 1, the reciprocating pushing assembly 16 moves axially under the action of the hydraulic push rod 25, so that the furnace body 1 can be pushed to move axially.
The available structure of the shuttle assembly 16 is not uniquely determined, and here the optimization is performed and the following specific possibilities are presented: the reciprocating pushing component 16 comprises a sliding seat 18 arranged on a sliding shaft 27 in a sliding manner and a baffle wheel arranged on the sliding seat 18 in a rotating manner, the sliding seat 18 is connected with a hydraulic push rod 25 in a matching manner, and the baffle wheel is in contact with the furnace body 1 in a matching manner. The catch wheel is in contact fit with the furnace body 1, so that the furnace body 1 can conveniently rotate, and when the furnace body 1 rotates, the catch wheel automatically conveys along with the rotation, and meanwhile, stable pushing acting force can be provided.
Preferably, in order to facilitate sliding of the sliding seat 18, a sliding hole matched with the sliding shaft 27 is formed on the sliding seat 18, and in order to prolong the service life of the sliding seat 18 and the sliding shaft 27, a sliding sleeve 28 is arranged between the sliding shaft 27 and the sliding hole.
Preferably, in this embodiment, a hydraulic station is used to supply oil to the hydraulic cylinders 24; a separate lubrication tube 26 is also provided and communicates to the slide block 18 to provide lubrication to the contact surface of the wheel with the race.
Preferably, the said catch wheel is in abutting contact with the side of the rolling ring 15. The rolling ring 15 rotates synchronously with the furnace body 1, and when the furnace body 1 rotates, the rolling ring 15 also rotates synchronously; and the rolling ring 15 is axially fixed on the outer wall of the furnace body 1, and when the baffle wheel abuts against the rolling ring 15, the furnace body 1 is synchronously abutted against.
When the catch wheel structure is adopted, the wheel shaft is arranged on the sliding seat, and the catch wheel is rotationally arranged on the wheel shaft. The wheel seat 29 is sleeved on the outer side of the wheel shaft, and the wheel seat 29 is contacted with the lower surface of the baffle wheel and supports the baffle wheel. When the furnace body is arranged in such a way, the baffle wheel rotates around the wheel shaft, and when the furnace body rotates, the baffle wheel correspondingly rotates, and meanwhile, the pushing of the furnace body is kept, so that the axial movement adjustment is carried out while the furnace body rotates. When the baffle wheel contacts with the furnace body, the baffle wheel receives lateral thrust, a corresponding bending moment is generated on the wheel shaft, and in order to avoid deformation of the wheel shaft caused by the bending moment, the thrust received by the baffle wheel needs to be balanced, and in particular, the wheel seat 29 achieves the effect.
Because the revolving part of the furnace body 1 belongs to a heavy revolving structure, the important rolling rings 15 and riding wheels for supporting the rotation of the furnace body 1 must be prevented from rotating for a long time at a fixed position, otherwise, abrasion steps are formed on contact surfaces, and when the furnace body 1 is in a cold state, the abrasion steps can cause damage to the rolling rings 15 and the riding wheels, so that the rolling rings and the riding wheels are seriously scrapped. Therefore, when the calciner works normally, the reciprocating pushing component 16 forcedly pushes the furnace body 1 to reciprocate along the contact surface to realize full contact between the riding wheel and the rolling ring 15, so that the abrasion steps formed by fixed rolling are avoided, the service life is prolonged, and the maintenance and replacement cost is reduced. The hydraulic station is configured to provide thrust for the baffle wheel device, and the baffle wheel pushes the furnace body 1 to realize reciprocating motion of a preset stroke, so that the long-term stable operation effect of the equipment is achieved.
In order to strengthen the protection of the structure of the furnace body 1, the connection structure of the furnace body 1 and the rolling ring 15 is optimized, and the following specific and feasible scheme is adopted in the embodiment: as shown in fig. 5, 6 and 7, a lining structure is arranged between the rolling ring 15 and the furnace body 1, the lining structure comprises a plurality of backing plates 14 uniformly arranged at intervals along the circumference of the outer wall of the furnace body 1, and the bottom surfaces of the backing plates 14 are attached with supporting blocks 19.
Preferably, the supporting block 19 is a square block, the supporting block 19 is provided with a circular through hole 1901, the backing plate 14 is in fit connection with the supporting block 19 at the hole opening of the circular through hole 1901, and the fit connection can be realized by welding from the bottom surface of the backing plate 14.
Preferably, in order to fix the backing plate 14, a pressing plate 20 and a baffle 21 are further arranged on the outer wall of the furnace body 1, the pressing plate 20 and the baffle 21 respectively abut against one end of the backing plate 14, and in order to enhance the fixing effect, a stud 22 can be further arranged to strengthen and fix the pressing plate 20 or the baffle 21.
Preferably, the backing plates 14 in this embodiment are flat plates with upper and lower surfaces being parallel surfaces, the conventional rolling ring 15 fixing structure is a conical backing plate 14 structure, the contact and the matching of conical surface machining errors are poor, each backing plate 14 is not easy to achieve uniform stress, the difficulty of concentricity between the backing plates and the furnace body 1 is ensured to be large during installation and adjustment, the structure is complex, and the concentricity adjustment difficulty is also large. The parallel backing plate 14 structure is adopted in the embodiment, the parallel backing plate 14 structure is adopted by the rolling ring 15 and the furnace body 1, clearance fit is designed between the rolling ring 15 and the backing plate 14, the rolling ring 15 is in interference fit after thermal expansion during operation of the furnace body 1, concentricity can be automatically ensured without adjustment, installation errors are completely avoided, and installation and maintenance workload is greatly reduced.
The rotary driving device is used as a power source for the rotation of the furnace body 1, and the following specific and feasible scheme can be adopted: the rotary driving device comprises a driver 5 and a transmission mechanism 6 which are connected and matched, and a driving wheel structure which is connected and transmitted with the transmission mechanism 6 is arranged at the furnace body 1. The driver 5 can generally adopt a motor and the like, the transmission mechanism 6 can adopt a gear transmission box and other structures, the driving wheel structure can adopt a gear, a belt wheel and other structures, and the driving wheel is matched with the furnace body 1, when the driver 5 runs, the isomorphic transmission mechanism 6 transmits power to the driving wheel, and the driving wheel rotates to drive the furnace body 1 to rotate.
Preferably, the driving wheel structure in the embodiment is a transmission wheel group, and comprises a first driving wheel 7 connected with the transmission mechanism 6 and a second driving wheel 4 arranged on the furnace body 1, wherein the first driving wheel 7 and the second driving wheel 4 are in matched transmission.
The structure of the furnace body 1 is optimized, and the following specific and feasible scheme is adopted: as shown in fig. 8, an alkali outlet and a discharging cover 12 are arranged at the tail of the furnace body 1, the discharging cover 12 is of a fixed structure and does not rotate with the furnace body 1, the discharging cover 12 comprises a cover part opposite to the alkali outlet and a friction ring 1203 coaxially arranged with the cover part and in sliding fit, an elastic expansion plate 1204 is arranged between the friction ring 1203 and the cover part, and an annular corrugated concave-convex structure concentric with the alkali outlet is arranged on the elastic expansion plate 1204. When the furnace body 1 rotates to discharge, the alkali outlet and the friction ring 1203 move relatively, the alkali outlet is covered by the discharge cover 12 and is sealed by the elastic expansion plate 1204, so that the air tightness of the alkali outlet can be ensured, and the yield of calcined products in the furnace body 1 can be ensured; due to the good deformability of the elastic expansion plate 1204 in the radial and axial directions, the air tightness at the alkali outlet can be maintained after long-time use.
The structure of the alkali outlet is optimized, and the following specific and feasible scheme is given as follows: the alkali outlet is provided with a blocking ring structure 23, and the cover part is provided with an elastic abutting structure which enables the friction ring 1203 to be tightly attached to the blocking ring structure 23. So configured, the resilient abutment structure urges or pulls the friction ring 1203 toward the blocker ring structure 23, forming a friction sealing surface therebetween.
The reason for this arrangement is that, because the furnace body 1 has the axial forward and backward movement amount and radial compensation of thermal expansion in the cold and hot state, a flexible structure is needed at the discharge cover 12 to adapt to the working condition, the traditional structure of equipment in the soda industry is a flat plate-shaped structure, and has a certain compensation function. The method has great influence on soda production enterprises; the corrugated expansion plate adopted in the embodiment is designed to be corrugated in the expansion plate surface flat plate structure, a plurality of circular arc corrugations are manufactured on the flat plate, the radial and axial compensation of the corrugated waves is greatly improved, and the flexible compensation quantity required by the cold and hot states and the reciprocating motion of the furnace body 1 is completely met.
Preferably, in this embodiment, the elastic supporting structure includes a connecting arm 1201 provided at the cover portion, a spring 1202 is provided on the connecting arm 1201, and the spring 1202 tightens the friction ring 1203.
The structure of the furnace body 1 is continuously optimized and the following specific and feasible scheme is shown in the embodiment: an external premixing device 8 is arranged at the furnace end of the furnace body 1, the external premixing device 8 comprises a mixing bin, a plurality of raw material inlets 801 are arranged on the mixing bin, and a stirring shaft is arranged in the mixing bin; the external premixing equipment 8 also comprises a feeding channel 9 which is communicated with the mixing bin and the furnace body 1, and the premixed raw materials enter the furnace body 1 through the feeding channel 9.
Preferably, the mixing bin is provided with a heavy alkali inlet, an alkali dust inlet and an alkali return inlet, and is also provided with an exhaust port 10; at the junction of the feed channel 9 and the burner, a feed seal 11 is provided, and a burner gas outlet is provided before the feed seal 11.
Because of the calcined characteristic of heavy alkali, heavy alkali needs to be premixed with sodium carbonate, and the free moisture after mixing is ensured to be lower than the experience value of 6%, the smooth proceeding of calcination can be ensured, otherwise, materials can be scarred on a heating pipe, the heat exchange effect is affected, and the realization of productivity is further affected, the existing equipment adopts a built-in premixing structure, the built-in premixing structure is limited by the specification and ventilation guarantee of a furnace body 1 because the mixing effect and the conveying capacity are simultaneously considered, if the productivity is greatly increased, the structure is not applicable any more, and the large-scale productivity of the equipment is far higher than that of the equipment, and the built-in premixing structure does not meet the large-scale productivity requirement, so that the premixer is independently arranged outside a calciner. The pair of stirring shafts drive the shoveling plates to forcedly mix and stir the heavy alkali and the added high Wen Chunjian, so that the free water content of the mixed alkali can be effectively reduced.
In the embodiment, the rear part of the discharging cover 12 at the tail of the furnace is also connected with a steam device 13, the steam device 13 comprises a steam pipe communicated to the alkali outlet, a steam inlet is arranged on the steam pipe, and a condensate outlet is also arranged at the lower part of the steam pipe.
When the device is specifically used, the actual production data of a domestic soda plant is determined by process design calculation according to the calculation basis, so that the reliability of the calculation basis is ensured, the heat exchange area required by the productivity is determined, a plurality of heating pipes are arranged in the furnace body 1 according to the heating area requirement, the heat exchange effect is ensured, main parameters such as proper inclination, rotating speed and the like are determined according to the material characteristic design, and the reasonable calcination residence time of the material in the furnace body 1 is ensured, so that the qualified product is produced under the design productivity.
The embodiments of the present invention are exemplified above, but the present invention is not limited to the above-described alternative embodiments, and those skilled in the art can obtain various other embodiments by any combination of the above-described embodiments, and any person can obtain various other embodiments without departing from the scope of the present invention. The above detailed description should not be construed as limiting the scope of the invention, which is defined in the claims and the description may be used to interpret the claims.
Claims (8)
1. A soda ash calciner apparatus, characterized in that: the furnace comprises a furnace body (1) which is obliquely arranged, wherein the furnace body (1) is supported and fixed through a first supporting device and a second supporting device in sequence, the height of the furnace body (1) gradually decreases from a furnace end to a furnace tail, and the supporting height of the first supporting device is larger than that of the second supporting device; the middle part of the furnace body (1) is connected with a rotary driving device, and the rotary driving device enables the furnace body (1) to roll and rotate on the first supporting device and the second supporting device; an axial reciprocating pushing device is cooperatively arranged at the first supporting device or the second supporting device, and the axial reciprocating pushing device enables the furnace body (1) to rotate and simultaneously to axially and reciprocally displace;
the axial reciprocating pushing device comprises a pair of supports (17) which are oppositely arranged, a sliding shaft (27) is connected between the two supports (17), a reciprocating pushing component is connected to the sliding shaft (27), a hydraulic cylinder (24) is arranged on one support (17), a hydraulic push rod (25) is arranged in the hydraulic cylinder (24), and the hydraulic push rod (25) is connected with the reciprocating pushing component (16) and drives the reciprocating pushing component (16) to axially move along the furnace body (1); the reciprocating pushing component (16) is in contact fit with the furnace body (1);
the rotary driving device comprises a driver (5) and a transmission mechanism (6) which are connected and matched, and a driving wheel structure which is connected and transmitted with the transmission mechanism (6) is arranged at the furnace body (1).
2. Soda calciner apparatus as claimed in claim 1, wherein: the reciprocating pushing component (16) comprises a sliding seat (18) arranged on a sliding shaft (27) in a sliding mode and a baffle wheel arranged on the sliding seat (18) in a rotating mode, the sliding seat (18) is connected with a hydraulic push rod (25) in a matched mode, and the baffle wheel is in contact with the furnace body (1).
3. Soda calciner apparatus as claimed in claim 2, wherein: the outer wall of the furnace body (1) is coaxially sleeved with a rolling ring (15), and the baffle wheel is in abutting contact with the side part of the rolling ring (15).
4. A soda calciner apparatus as claimed in claim 3, wherein: the first supporting device and the second supporting device comprise supporting seats, riding wheels for supporting the furnace body (1) are arranged on the supporting seats, and the riding wheels are in contact fit with the outer circumferential surface of the rolling ring (15).
5. A soda calciner apparatus as claimed in claim 3, wherein: a lining structure is arranged between the rolling ring (15) and the furnace body (1), the lining structure comprises a plurality of backing plates (14) which are uniformly arranged at intervals along the circumference of the outer wall of the furnace body (1), and supporting blocks (19) are attached to the bottom surface of the backing plates (14).
6. Soda calciner apparatus as claimed in claim 1, wherein: the furnace body is characterized in that an alkali outlet and a discharging cover (12) are arranged at the furnace tail of the furnace body (1), the discharging cover (12) comprises a cover part opposite to the alkali outlet and a friction ring (1203) coaxially arranged with the cover part and in sliding fit, an elastic expansion plate (1204) is arranged between the friction ring (1203) and the cover part, and an annular corrugated concave-convex structure concentric with the alkali outlet is arranged on the elastic expansion plate (1204).
7. The soda ash calciner apparatus of claim 6, wherein: the alkali outlet is provided with a blocking ring structure (23), and the cover part is provided with an elastic abutting structure which enables the friction ring (1203) to be tightly attached to the blocking ring structure (23).
8. Soda calciner apparatus as claimed in claim 1, wherein: an external premixing device (8) is arranged at the furnace end of the furnace body (1), the external premixing device (8) comprises a mixing bin, a plurality of raw material inlets (801) are arranged on the mixing bin, and a stirring shaft is arranged in the mixing bin; the external premixing equipment (8) further comprises a feeding channel (9) which is communicated with the mixing bin and the furnace body (1), and the premixed raw materials enter the furnace body (1) through the feeding channel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539107.5A CN112595097B (en) | 2020-12-23 | 2020-12-23 | Calcined soda calciner equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539107.5A CN112595097B (en) | 2020-12-23 | 2020-12-23 | Calcined soda calciner equipment |
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| CN112595097A CN112595097A (en) | 2021-04-02 |
| CN112595097B true CN112595097B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011539107.5A Active CN112595097B (en) | 2020-12-23 | 2020-12-23 | Calcined soda calciner equipment |
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| FR1228057A (en) * | 1958-12-12 | 1960-08-26 | Electro Chimie Soc D | Reheating furnaces improvements |
| US3358623A (en) * | 1965-06-24 | 1967-12-19 | Papel Loreto & Pena Pobre | Method and apparatus for heat and chemical recovery from waste liquors |
| EP0421411A2 (en) * | 1989-10-05 | 1991-04-10 | Knut Willi Weber | Rotary drum furnace |
| CN103145156A (en) * | 2013-03-25 | 2013-06-12 | 成都天保重型装备股份有限公司 | Re-alkaline steam calcinator |
| CN203100425U (en) * | 2012-12-17 | 2013-07-31 | 四川矿山机器（集团）有限责任公司 | Calcination furnace rolling ring with lubricating device |
| CN214406924U (en) * | 2020-12-23 | 2021-10-15 | 成都天保节能环保工程有限公司 | Soda calcining furnace equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT397861B (en) * | 1990-09-04 | 1994-07-25 | Ragailler Roland Mag | Rotary furnace, in particular for the pyrolysis of waste products |
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2020
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1228057A (en) * | 1958-12-12 | 1960-08-26 | Electro Chimie Soc D | Reheating furnaces improvements |
| US3358623A (en) * | 1965-06-24 | 1967-12-19 | Papel Loreto & Pena Pobre | Method and apparatus for heat and chemical recovery from waste liquors |
| EP0421411A2 (en) * | 1989-10-05 | 1991-04-10 | Knut Willi Weber | Rotary drum furnace |
| CN203100425U (en) * | 2012-12-17 | 2013-07-31 | 四川矿山机器（集团）有限责任公司 | Calcination furnace rolling ring with lubricating device |
| CN103145156A (en) * | 2013-03-25 | 2013-06-12 | 成都天保重型装备股份有限公司 | Re-alkaline steam calcinator |
| CN214406924U (en) * | 2020-12-23 | 2021-10-15 | 成都天保节能环保工程有限公司 | Soda calcining furnace equipment |
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|---|---|
| CN112595097A (en) | 2021-04-02 |
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