CN214406924U - Soda calcining furnace equipment - Google Patents

Abstract

The utility model relates to the technical field of soda production and processing equipment, in particular to soda calcining furnace equipment, which comprises an obliquely arranged furnace body, wherein the furnace body is sequentially supported and fixed by a first supporting device and a second supporting device, the height of the furnace body is gradually reduced from a furnace head to a furnace tail, and the supporting height of the first supporting device is greater than that of the second supporting device; the middle part of the furnace body is connected with a rotary driving device which enables the furnace body to roll and rotate on the first supporting device and the second supporting device; an axial reciprocating pushing device is arranged at the first supporting device or the second supporting device in a matching manner, and the axial reciprocating pushing device enables the furnace body to rotate and simultaneously reset in the axial direction. The utility model discloses optimize the improvement to the structure of furnace body, utilize axial pusher jack adjustment furnace body and strutting arrangement to bear the position of load, avoided stress concentration to lead to structural deformation, reduced the frequency of maintenance, improved the efficiency of production.

Description

Soda calcining furnace equipment

Technical Field

The utility model relates to a soda production processing equipment technical field, concretely relates to soda calcine furnace equipment.

Background

At present, the specification of a light ash calcining furnace for the domestic soda ash industry is phi 3.6m, the maximum single-machine capacity scale is 30 ten thousand tons/year, the scale of the soda plant is larger and larger along with the gradual expansion of the domestic soda plant, the calcining furnace matched with the soda plant can only select the maximum 30 ten thousand tons/year equipment, the problems of more matched equipment, large occupied area and the like are caused, and particularly in the domestic natural soda development project, the project capacity scale is farther and far larger than that of the common soda project, and the calcining furnace with larger capacity is required to be used.

The reasons for the low output of the calcinator used in the present soda production include the structural defects of the equipment, such as frequent damage of the calcinator during the production process, repeated shutdown for maintenance and repair, and low actual production efficiency.

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 a more reasonable technical scheme needs to be provided, and the defects in the prior art are overcome.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior art defects mentioned in the above, the utility model provides a calcined soda calcining furnace equipment aims at optimizing the structure of calcining furnace equipment, not only improves the output of the unit interval of calcining furnace, can also reduce the damage of calcining furnace and the frequency of making mistakes, reduces and overhauls the maintenance number of times to improve the efficiency of production, increase output.

In order to achieve the above object, the utility model discloses the technical scheme who specifically adopts is:

a soda calcining furnace device comprises an obliquely arranged furnace body, wherein the furnace body is sequentially supported and fixed through a first supporting device and a second supporting device, the height of the furnace body is gradually reduced from a furnace head to a furnace tail, and the supporting height of the first supporting device is greater than that of the second supporting device; the middle part of the furnace body is connected with a rotary driving device which enables the furnace body to roll and rotate on the first supporting device and the second supporting device; an axial reciprocating pushing device is arranged at the first supporting device or the second supporting device in a matching manner, and the axial reciprocating pushing device enables the furnace body to rotate and simultaneously reset in the axial direction.

According to the calcining furnace equipment disclosed by the invention, the furnace body is supported by 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 have the function of 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 and bears the load at a fixed position for a long time, and the contact part is deformed no matter in a static state or a rotating state; therefore, the position of the furnace body is axially adjusted through the axial reciprocating pushing device, especially in the rotation process, the furnace body applies balanced load to the first supporting device and the second supporting device, the position bearing the load is not fixed, and the damage of the contact position of the furnace body and the first supporting device or the second supporting device can be reduced.

Further, the axial reciprocating thrust device may adopt various practical structures, such as one of the practical solutions: the axial reciprocating pushing device comprises a pair of supports which are oppositely arranged, the two supports are connected and fixed through a sliding shaft, a reciprocating pushing assembly is arranged on the sliding shaft in a sliding manner, 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 move axially along the furnace body; the reciprocating pushing component is contacted and matched with the furnace body. When the reciprocating pushing component is arranged, the reciprocating pushing component is contacted with the furnace body, and when the reciprocating pushing component moves axially under the action of the hydraulic push rod, the furnace body can be pushed to move axially.

Still further, the available structure of the reciprocating thrust assembly is not uniquely determined, and is optimized here and set forth as follows: the reciprocating pushing assembly comprises a sliding seat arranged on the sliding shaft in a sliding mode and a blocking wheel arranged on the sliding seat in a rotating mode, the sliding seat is connected and matched with the hydraulic push rod, and the blocking wheel is in contact fit with the furnace body. The blocking wheel is in contact fit with the furnace body, so that the furnace body can conveniently rotate, and when the furnace body rotates, the blocking wheel automatically transmits along with the furnace body, and meanwhile, stable pushing acting force can be provided.

Furthermore, the furnace body as a device for containing the raw material to calcine is not directly contacted with the supporting device and the axial pushing device, and is optimally described here, and the following concrete feasible schemes are given: the outer wall of the furnace body is coaxially sleeved with a rolling ring, and the blocking wheel is in abutting contact with the side part of the rolling ring. The rolling ring and the furnace body rotate synchronously, and when the furnace body rotates, the rolling ring also rotates synchronously; and the rolling ring is axially fixed on the outer wall of the furnace body, and the blocking wheel synchronously abuts against the furnace body when abutting against the rolling ring.

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 proposed herein: the first supporting device and the second supporting device both comprise supporting seats, supporting wheels used for supporting the furnace body are arranged on the supporting seats, and the supporting wheels are in contact fit with the outer circumferential surface of the rolling ring. The supporting rollers are a plurality of, and when the furnace body rotates, the supporting rollers rotate to assist the rotation of the furnace body.

Further, in order to strengthen the protection of the furnace body structure, the connecting structure of the furnace body and the rolling ring is optimized, and the following specific feasible scheme is provided: the rolling ring and the furnace body are provided with a liner structure, the liner structure comprises a plurality of liner plates which are uniformly arranged along the circumference of the outer wall of the furnace body at intervals, and the bottom surfaces of the liner plates are attached with supporting blocks.

Furthermore, a through hole is formed in the supporting block, and the base plate is attached to the supporting block at the orifice of the through hole; in order to fix the base 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 base plate.

Furthermore, the rotary driving device is used as a power source for the rotation of the furnace body, and the following specific feasible schemes can be adopted: the rotary driving device comprises a driver and a transmission mechanism which are connected and matched, and a driving wheel structure connected with the transmission mechanism for transmission is arranged at the furnace body. The driver can generally adopt motors and the like, the transmission mechanism can adopt structures such as a gear transmission box and the like, the driving wheel structure can adopt structures such as gears, belt wheels and the like, and the driving wheel is matched with the furnace body, when the driver operates, the isomorphic transmission mechanism transmits power to the driving wheel, and the driving wheel rotates to drive the furnace body to rotate.

Further, the structure of the furnace body is optimized, and the following concrete feasible schemes are given as follows: the furnace tail of the furnace body is provided with an alkali outlet and a discharging cover, the discharging cover comprises a cover part right facing the alkali outlet and a friction ring coaxially arranged with the cover part and in sliding fit with the cover part, 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 arrangement is carried out, when the furnace body rotates to discharge materials, the alkali outlet and the friction ring move relatively, the alkali outlet is covered by the discharging cover and sealed by the elastic expansion plate, the air tightness at the alkali outlet can be ensured, and the finished product rate of calcined products in the furnace body is ensured; due to the good deformation capability of the elastic expansion plate in the radial direction and the axial direction, the air tightness of the alkali outlet can be still maintained after long-time use.

Further, the structure of the alkali outlet is optimized, and the following specific feasible schemes are given: 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 and the blocking ring structure to be tightly attached. When the elastic abutting structure is arranged, the friction ring is pushed or pulled to the stop ring structure by the elastic abutting structure, and a friction sealing surface is formed between the friction ring and the stop ring structure.

Further, the structure of the furnace body is continuously optimized and the following concrete feasible schemes are 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 formed in the mixing bin, and a stirring shaft is arranged in the mixing bin; the external premixing equipment also comprises a feeding channel for communicating the mixing bin with the furnace body, and the premixed raw materials enter the furnace body through the feeding channel.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

the utility model discloses optimize the improvement to the structure of furnace body, utilize axial pusher jack adjustment furnace body and strutting arrangement to bear the position of load, avoided stress concentration to lead to structural deformation, reduced the frequency of maintenance, improved the efficiency of production.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a composition structure of a calciner plant in a side view and an enlarged schematic view of a part of the structure.

FIG. 2 is a schematic view of a composition structure of a calciner plant in a plan view and a schematic view of a partial structure in an enlarged manner.

FIG. 3 is a schematic view of the structure of the axial pushing device in cooperation with the furnace body.

Fig. 4 is a schematic view of the structure of the axial pushing apparatus.

Fig. 5 is a schematic view of the fitting structure of the rolling ring and the backing plate.

Fig. 6 is a schematic sectional view of the rolling ring and the pad plate.

Fig. 7 is a schematic view of another view angle of the fitting structure of the rolling ring and the backing plate.

FIG. 8 is an enlarged view of a part of the structure of the alkali outlet.

In the above drawings, the meanings of the respective symbols are: 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. feeding and sealing; 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 base plate; 15. rolling a ring; 16. a reciprocating pushing assembly; 17. a support; 18. a sliding seat; 19. a support block; 1901. a through hole; 20. pressing a plate; 21. a baffle plate; 22. erecting ribs; 23. a barrier ring structure; 24. a hydraulic cylinder; 25. a hydraulic push rod; 26. a lubricating oil pipe; 27. a slide shaft; 28. a sliding sleeve; 29. a wheel seat.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. The present 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 frequently overhauled and maintained, 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 solution disclosed in this embodiment is as follows:

as shown in fig. 1 and 2, a soda calcining furnace device comprises a furnace body 1 which is obliquely arranged, wherein the furnace body 1 is sequentially supported and fixed through a first supporting device and a second supporting device, the height of the furnace body 1 is gradually reduced from a furnace head to a furnace tail, and the supporting height of the first supporting device is greater 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 arranged at the first supporting device or the second supporting device in a matching way, and the axial reciprocating pushing device enables the furnace body 1 to rotate and simultaneously reset in the axial direction.

In the calcining furnace equipment disclosed by the invention, the furnace body 1 is supported by 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 assisting 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 loaded at a fixed position for a long time, and the contact part is deformed no matter in a static state or a rotating 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, the position bearing the load is not fixed, and 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 an installation platform, and the height of the installation platform can be set according to the set height requirement, so that the positions of the first supporting device and the second supporting device are adjusted.

In some embodiments, a structure for facilitating the rotation, such as a wheel-shaped structure, is disposed between the furnace body 1 and the first and second supporting devices. The furnace body 1 as a device for containing the raw material to be calcined is not directly contacted with the supporting device and the axial pushing device, and the following concrete possible schemes are provided as the optimized description here: the outer wall of the furnace body 1 is coaxially sleeved with a rolling ring 15.

Preferably, in the present embodiment, the following specific feasible schemes are adopted for the first supporting device and the second supporting device: the first supporting device and the second supporting device both comprise supporting seats, supporting wheels used for supporting the furnace body 1 are arranged on the supporting seats, and the supporting wheels are in contact fit with the outer circumferential surface of a rolling ring 15 arranged on the outer wall of the furnace body 1. The supporting rollers are a plurality of in number, and when the furnace body 1 rotates, the supporting rollers rotate to assist the rotation of the furnace body 1.

As shown in fig. 3 and 4, the axial reciprocating pushing device can adopt various specific structures, and the embodiment adopts a feasible 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 assembly is arranged on the sliding shaft 27 in a sliding manner, one support 17 is provided with a double-acting hydraulic cylinder 24, a hydraulic push rod 25 is arranged in the hydraulic cylinder 24, and the hydraulic push rod 25 is connected with the reciprocating pushing assembly 16 and drives the reciprocating pushing assembly 16 to move axially along the furnace body 1; the reciprocating pushing assembly 16 is contacted and matched with the furnace body 1. When the reciprocating pushing component 16 is arranged in this way, the reciprocating pushing component 16 is contacted with the furnace body 1, and when the reciprocating pushing component 16 moves axially under the action of the hydraulic push rod 25, the furnace body 1 can be pushed to move axially.

The available configurations of the pusher shoe 16 are not uniquely identified and are optimized and presented as follows: the reciprocating pushing assembly 16 comprises a sliding seat 18 arranged on a sliding shaft 27 in a sliding mode and a blocking wheel arranged on the sliding seat 18 in a rotating mode, the sliding seat 18 is connected and matched with the hydraulic push rod 25, and the blocking wheel is in contact fit with the furnace body 1. The baffle 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 baffle wheel automatically transmits along with the furnace body, and meanwhile, stable pushing acting force can be provided.

Preferably, in order to facilitate the sliding of the sliding seat 18, a sliding hole is provided on the sliding seat 18 for engaging with the sliding shaft 27, and in order to prolong the service life of the sliding seat 18 and the sliding shaft 27, a sliding sleeve 28 is provided between the sliding shaft 27 and the sliding hole.

Preferably, in this embodiment, a hydraulic station is used to supply oil to hydraulic cylinder 24; and a separate lubricating oil pipe 26 is also arranged and communicated with the sliding seat 18 to provide lubrication for the contact surface of the catch wheel and the rolling ring.

Preferably, the 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 blocking wheel tightly abuts against the rolling ring 15, the blocking wheel also tightly abuts against the furnace body 1 synchronously.

When the catch wheel structure is adopted, the sliding seat is provided with a wheel shaft, and the catch wheel is rotatably arranged on the wheel shaft. The outer side of the wheel shaft is also sleeved with a wheel seat 29, and the wheel seat 29 is contacted with the lower surface of the catch wheel and supports the catch wheel. When the furnace body is arranged, the blocking wheels rotate around the wheel shafts, and when the furnace body rotates, the blocking wheels correspondingly rotate, meanwhile, the furnace body is kept to be pushed, and the furnace body rotates and is axially moved and adjusted. When the catch wheel contacts the furnace body, lateral thrust is applied, a corresponding bending moment is generated on the wheel shaft, in order to avoid deformation of the wheel shaft caused by the bending moment, the thrust applied to the catch wheel needs to be balanced, and specifically, the wheel seat 29 achieves the effect.

Because the rotating part of the furnace body 1 belongs to a heavy rotating structure, the rolling ring 15 and the riding wheel which are important parts for supporting the rotation of the furnace body 1 must be prevented from rotating at a fixed position for a long time, otherwise, a wear step can be formed on a contact surface, and when the furnace body 1 is stopped in a cold state, the wear step can cause the damage of the rolling ring 15 and the riding wheel, and the serious scrapping is caused. Therefore, when the calcining furnace normally works, the reciprocating pushing component 16 forcibly pushes the furnace body 1 to form reciprocating motion along the contact surface, so that the riding wheel and the rolling ring 15 realize full contact, an abrasion step formed by fixed rolling is avoided, the service life is prolonged, and the maintenance and replacement cost is reduced. The hydraulic station is configured to provide thrust for the catch wheel device, and the catch wheel pushes the furnace body 1 to realize reciprocating motion with a preset stroke, so that the effect of long-term stable operation of equipment is achieved.

In order to enhance the protection of the furnace body 1 structure and optimize the connection structure of the furnace body 1 and the rolling ring 15, the following specific feasible schemes are adopted in the embodiment: as shown in fig. 5, 6 and 7, a liner structure is arranged between the rolling ring 15 and the furnace body 1, the liner structure comprises a plurality of backing plates 14 uniformly arranged along the circumference of the outer wall of the furnace body 1 at intervals, and supporting blocks 19 are attached to the bottom surfaces of the backing plates 14.

Preferably, the supporting block 19 is a square block, and a circular through hole 1901 is provided on the supporting block 19, and the backing plate 14 and the supporting block 19 are attached at the hole of the circular through hole 1901, where the attachment can be achieved by welding from the bottom surface of the backing plate 14.

Preferably, in order to fix the backing plate 14, a pressure plate 20 and a baffle 21 are further arranged on the outer wall of the furnace body 1, the pressure 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 may be further arranged to enhance and fix the pressure plate 20 or the baffle 21.

Preferably, backing plate 14 in this embodiment is the flat board that two upper and lower surfaces are the parallel surface, and the tradition rolls 15 fixed knot and constructs for toper backing plate 14 structure, has that conical surface machining error contact cooperation is not good, every backing plate 14 is difficult for reaching even atress, guarantees during the installation adjustment that it is big with furnace body 1 concentric degree of difficulty, and its structure is more complicated, and the degree of concentricity adjustment difficulty is also great. This embodiment adopts parallel backing plate 14 structure, rolls ring 15 and furnace body 1 and adopts parallel backing plate 14 structure, rolls and designs for clearance fit between ring 15 and the backing plate 14, by furnace body 1 during operation thermal state expansion back with roll ring 15 interference fit, the concentricity need not to adjust can guarantee automatically, avoids installation error completely to installation and maintenance work load have alleviateed greatly.

The rotary driving device is used as a power source for the rotation of the furnace body 1, and the following specific feasible schemes 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 connected with the transmission mechanism 6 for transmission is arranged at the furnace body 1. The driver 5 can generally adopt the motor etc., and drive mechanism 6 can adopt the gear drive case isotructure, and the driving wheel structure can adopt gear, band pulley isotructure, and the drive wheel cooperates with furnace body 1, and when the driver 5 operation, isomorphic drive mechanism 6 transmits power to the drive wheel, and the drive wheel rotates and can drive furnace body 1 and rotate.

Preferably, the driving wheel structure in this embodiment is a transmission wheel set, and includes a first driving wheel 7 connected to the transmission mechanism 6 and a second driving wheel 4 disposed on the furnace body 1, and the first driving wheel 7 and the second driving wheel 4 are in matching transmission.

The structure of the furnace body 1 is optimized, and the following concrete feasible scheme is adopted: as shown in fig. 8, an alkali outlet and a discharge cover 12 are arranged at the furnace tail of the furnace body 1, the discharge cover 12 is of a fixed structure and does not rotate with the furnace body 1, the discharge cover 12 comprises a cover portion facing the alkali outlet and a friction ring 1203 coaxially arranged with the cover portion and in sliding fit with the cover portion, an elastic expansion plate 1204 is arranged between the friction ring 1203 and the cover portion, and an annular corrugated concave-convex structure concentric with the alkali outlet is arranged on the elastic expansion plate 1204. When the arrangement is adopted, when the furnace body 1 rotates to discharge materials, the alkali outlet and the friction ring 1203 move relatively, the alkali outlet is covered by the discharging cover 12 and sealed by the elastic expansion plate 1204, the air tightness at the alkali outlet can be ensured, and the finished product rate of calcined products in the furnace body 1 can be ensured; due to the good deformation capability of the elastic expansion plate 1204 in the radial direction and the axial direction, the air tightness at the alkali outlet can be still maintained after long-term use.

The structure of the alkali outlet is optimized, and the following specific feasible schemes are given: a blocking ring structure 23 is arranged at the alkali outlet, and an elastic abutting structure is arranged on the cover part and enables the friction ring 1203 and the blocking ring structure 23 to be tightly attached. Thus arranged, the resilient biasing structure urges or pulls the friction ring 1203 towards the blocker ring structure 23, forming a frictional sealing surface therebetween.

The reason for setting up like this is, because of there is the backward and forward movement amount and the radial compensation of cold and hot attitude thermal expansion etc. in furnace body 1, ejection of compact cover 12 department needs a flexible construction to adapt to this operating mode, and soda trade equipment tradition structure is dull and stereotyped shape structure, has certain compensation effect, and cold state prestretches and the axial and radial compensation amount of expansion is not enough when this structure needs the installation, uses repeatedly a period and will produce the damage, in case damage will produce gas leakage phenomenon, and production technology parameter can't be guaranteed, needs to shut down the change. Brings great influence to soda production enterprises; the corrugated expansion plate adopted by the embodiment is characterized in that the flat plate structure on the expansion plate surface is designed into a corrugated shape, a plurality of circular arc corrugations are manufactured on the flat plate, the radial and axial compensation of the corrugated shape is greatly improved, and the flexible compensation quantity required by the cold and hot state and the reciprocating motion of the furnace body 1 is completely met.

Preferably, in the present embodiment, the elastic abutting structure includes a connecting arm 1201 disposed on the cover portion, a spring 1202 is disposed on the connecting arm 1201, and the spring 1202 tensions the friction ring 1203.

The structure of the furnace body 1 is continuously optimized and the following concrete feasible schemes are listed 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 device 8 also comprises a feeding channel 9 for communicating the mixing bin with 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, an alkali return inlet and an exhaust port 10; at the connection of the feeding channel 9 and the furnace end, a feeding seal 11 is arranged, and a furnace gas outlet is arranged before the feeding seal 11.

Because of the heavy alkali calcination characteristic, heavy alkali needs to be premixed with soda ash, and guarantee that the free moisture after mixing is less than 6% of empirical value, just can guarantee going on smoothly of calcination, otherwise the material can scab at the heating pipe, influence the heat transfer effect, and then influence the realization of productivity, what current equipment adopted is built-in premix structure, the mixed effect and the delivery capacity are considered simultaneously because of needs to built-in premix structure, so receive the restriction that 1 specification of furnace body and ventilation were guaranteed, if the productivity increases by a wide margin, above-mentioned structure no longer is suitable, because of the huge productivity of this scheme equipment is higher than needs equipment far away, this built-in premix structure has not satisfied the productivity demand of maximization, so with the premixer independent setting outside the calciner. The stirring shafts drive the shoveling plates to forcibly mix and stir the heavy alkali and the added high-temperature sodium carbonate, so that the free water content of the mixed alkali can be effectively reduced.

In this embodiment, the rear portion of the discharge cover 12 at the furnace tail is further connected with a steam device 13, the steam device 13 comprises a steam pipe communicated to the alkali outlet, the steam pipe is provided with a steam inlet, and the lower portion of the steam pipe is further provided with a condensed water outlet.

When the device is used specifically, the device is calculated through process design, the calculation basis is the actual production data of the soda plant in China, the reliability of the calculation basis is guaranteed, the heat exchange area required by the capacity is determined, the heating pipes are arranged in the furnace body 1 according to the heating area requirement, the heat exchange effect is guaranteed, the main parameters such as the proper inclination, the rotating speed and the like are determined according to the material characteristic design, the reasonable calcination retention time of the material in the furnace body 1 is guaranteed, and the qualified product is produced under the design capacity.

The above embodiments are just examples of the present invention, but the present invention is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining the above embodiments, and any one can obtain other various embodiments by the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims (10)

1. A soda calcining furnace equipment is characterized in that: 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) is gradually reduced from a furnace head to a furnace tail, and the supporting height of the first supporting device is greater 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 arranged at the first supporting device or the second supporting device in a matching way, and the axial reciprocating pushing device enables the furnace body (1) to rotate and simultaneously reset in the axial direction.

2. Soda calciner plant according to claim 1, characterized in that: 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 assembly is connected onto 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 assembly (16) and drives the reciprocating pushing assembly (16) to axially move along the furnace body (1); the reciprocating pushing component (16) is in contact fit with the furnace body (1).

3. Soda calciner plant according to claim 2, characterized in that: the reciprocating pushing assembly (16) comprises a sliding seat (18) arranged on a sliding shaft (27) in a sliding mode and a blocking wheel arranged on the sliding seat (18) in a rotating mode, the sliding seat (18) is connected and matched with the hydraulic push rod (25), and the blocking wheel is in contact fit with the furnace body (1).

4. Soda calciner plant according to claim 3, characterized in that: the outer wall of the furnace body (1) is coaxially sleeved with a rolling ring (15), and the catch wheel is in abutting contact with the side part of the rolling ring (15).

5. Soda calciner plant according to claim 4, characterized in that: the first supporting device and the second supporting device both comprise supporting seats, supporting wheels used for supporting the furnace body (1) are arranged on the supporting seats, and the supporting wheels are in contact fit with the outer circumferential surfaces of the rolling rings (15).

6. Soda calciner plant according to claim 4, characterized in that: the furnace body is characterized in that a liner structure is arranged between the rolling ring (15) and the furnace body (1), the liner 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 surfaces of the backing plates (14).

7. Soda calciner plant according to claim 1, characterized in that: the rotary driving device comprises a driver (5) and a transmission mechanism (6) which are connected and matched, and a driving wheel structure connected with the transmission mechanism (6) for transmission is arranged at the furnace body (1).

8. Soda calciner plant according to claim 1, characterized in that: the furnace tail of the furnace body (1) is provided with an alkali outlet and a discharging cover (12), the discharging cover (12) comprises a cover part right facing 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).

9. Soda calciner plant according to claim 8, characterized in that: the alkali outlet is provided with a blocking ring structure (23), the cover part is provided with an elastic abutting structure, and the elastic abutting structure enables the friction ring (1203) and the blocking ring structure (23) to be tightly attached.

10. Soda calciner plant according to claim 1, characterized in that: 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 formed in the mixing bin, and a stirring shaft is arranged in the mixing bin; the external premixing device (8) also comprises a feeding channel (9) for communicating the mixing bin with the furnace body (1), and the premixed raw materials enter the furnace body (1) through the feeding channel (9).

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