CN115196896A

CN115196896A - Improvement method of desulfurized lime sludge

Info

Publication number: CN115196896A
Application number: CN202210894475.4A
Authority: CN
Inventors: 汪文杰; 汪德仁
Original assignee: Hunan Renyi Environmental Protection Building Materials Technology Co ltd
Current assignee: Hunan Renyi Environmental Protection Building Materials Technology Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-10-18
Anticipated expiration: 2042-07-27
Also published as: CN115196896B

Abstract

The invention discloses an improvement method of desulfurized lime mud, and relates to the technical field of lime mud processing. This application is carried the lime sediment to the storage bucket through feed mechanism, and the carousel drives the lime sediment and rotates at the storage bucket, blocks through rotatory and arc piece, with mixed and disorderly lime sediment, can realize evenly carrying the unloading in batches relatively.

Description

Improvement method of desulfurized lime sludge

Technical Field

The invention relates to the technical field of lime mud processing, in particular to an improvement method of desulfurized lime mud.

Background

The desulfurization lime mud of iron and steel enterprises is only ten percent of sulfur trioxide, and cannot be used as a gypsum raw material due to low sulfur content. When the sulfur trioxide is used as other building materials, the sulfur trioxide is harmful substance and cannot be used, so that the sulfur trioxide is not comprehensively utilized at present and basically is stacked, and the stacking treatment can cause serious environmental pollution and influence the normal production of iron and steel production enterprises. Therefore, lime mud needs to be improved, the existing improved equipment directly conveys the lime mud to the mixing equipment through the feeding mechanism for mixing, and the following defects can exist in the case of the existing improved equipment: the lime mud fed by the feeding mechanism each time is disordered, so that the lime mud entering the mixing equipment each time is uneven; and sulfur trioxide in the lime mud is volatile, can send pungent smell, and is harmful to human body, and current improvement equipment does not set up corresponding purification mechanism.

Disclosure of Invention

The invention aims to provide an improvement method of desulfurized lime mud, which solves the following technical problems: when the lime mud is used in building materials, the problem of harmful sulfur is solved; the lime mud fed by the feeding mechanism each time is disordered, so that the lime mud entering the mixing equipment each time is uneven; and sulfur trioxide in the lime slag is volatile, can emit pungent smell and is harmful to human bodies, and the existing improved equipment is not provided with a corresponding purification mechanism.

The purpose of the invention can be realized by the following technical scheme:

an improved method for desulphurizing lime mud comprises the following steps:

step one, adding lime mud, fluorgypsum and titanium gypsum into improved equipment, and stirring and mixing uniformly;

step two, adding sodium sulfate, reacting, controlling the temperature to be lower than 60 ℃, and performing industrial gypsum crystallization reaction;

the ratio of the fluorgypsum to the titanium gypsum is as follows: 1 to 8:1 to 5.

As a further scheme of the invention: the improved equipment comprises a rack, wherein a feeding mechanism is arranged on one side of the rack, a dispersing mechanism is arranged on the rack, a crushing mechanism is arranged on the other side of the rack, a mixing mechanism is arranged at the bottom of the crushing mechanism, and a purifying mechanism is arranged above the feeding mechanism, the dispersing mechanism, the crushing mechanism and the mixing mechanism;

the dispersing mechanism comprises a material storage barrel fixedly mounted on a rack, a first motor is fixedly mounted at the bottom of the material storage barrel, a transmission shaft is fixedly mounted on an output shaft of the first motor, the transmission shaft penetrates through the material storage barrel and is connected with a rotary table, a mounting frame is fixedly mounted at the center of the top of the material storage barrel, a first arc-shaped sheet is fixedly mounted at the bottom of the mounting frame, one side of the top of the material storage barrel is connected with a second arc-shaped sheet through a connecting plate, the first arc-shaped sheet and the second arc-shaped sheet are both in contact with the rotary table, an arc-shaped conveying channel is formed between the first arc-shaped sheet and the second arc-shaped sheet, and a material discharging channel is formed between the second arc-shaped sheet and the material storage barrel;

the purification mechanism comprises a purification box, an air inlet cover is fixedly mounted at the bottom of the purification box, fan blades are connected in the air inlet cover in a rotating mode, and the fan blades are fixedly connected with the transmission shaft.

As a further scheme of the invention: the purifying box is characterized in that an inserting shaft is fixedly mounted on one side of the inner wall of the purifying box, a rotatable activated carbon sleeve is inserted into the inserting shaft in a splicing mode, and one end, far away from the inserting shaft, of the activated carbon sleeve extends out of the purifying box. The upper and lower sides of the activated carbon sleeve are provided with opposite arc-shaped pieces, the two arc-shaped pieces form an air channel, and the activated carbon sleeve is driven to rotate through air flow.

As a further scheme of the invention: the crushing mechanism comprises a crushing box, two motors II are vertically arranged on one side of the crushing box, a speed reducer is fixedly arranged at the end part of each motor II, a crushing roller is rotatably connected onto the speed reducer, and the crushing roller extends into the crushing box and is rotatably connected with the crushing box; connecting discs are rotatably connected to two sides of the crushing box and below the speed reducer, arc-shaped sealing plates are fixedly mounted between the two connecting discs, a discharge channel is formed between the two arc-shaped sealing plates, one of the connecting discs is connected with a first air cylinder through a movable connecting block, and the first air cylinder is obliquely arranged on the crushing box; the lower part of the crushing roller is fixedly provided with inclined plates, and a gap between the two inclined plates is matched with the arc-shaped sealing plate.

As a further scheme of the invention: and a third motor is fixedly mounted on the connecting disc, a central shaft is fixedly mounted on an output shaft of the third motor, the central shaft is arranged in the discharging channel and is rotatably connected with the two connecting discs, and a plurality of arc-shaped plates are arranged on the outer peripheral surface of the central shaft at equal intervals.

As a further scheme of the invention: the mixing mechanism comprises a mixing box, two fixed blocks are symmetrically arranged on one side of the mixing box, a seesaw is rotatably connected onto the fixed blocks, a second air cylinder is fixedly arranged on one side of the mixing box, a piston rod of the second air cylinder is movably connected with one side of the seesaw, a first push rod and a second push rod are respectively arranged at two ends of the seesaw, the end part of the first push rod extends into the mixing box and is connected with an L-shaped plate, the L-shaped plate is slidably connected with the inner wall of the bottom of the mixing box, a fourth motor is fixedly arranged on one side of the L-shaped plate, an output shaft of the fourth motor penetrates through the L-shaped plate and is connected with a rotating shaft, and a detachable stirring rod is arranged on the rotating shaft;

the end part of the second push rod extends into the mixing box and is connected with a steel wire rope, the steel wire rope bypasses a plurality of guide wheels arranged on the inner wall of the mixing box and is connected with a sealing baffle, and inclined parts are arranged at the end parts of the sealing baffle and the L-shaped plate.

As a further scheme of the invention: the rotating shaft is fixedly provided with a fixed disc, the rotating shaft is sleeved with a sleeve, a plurality of threaded sleeves are uniformly arranged on the sleeve, the threaded sleeves are internally connected with stirring rods in a threaded manner, and the end parts of the stirring rods are provided with rotating balls; the end of the rotating shaft is provided with a threaded hole, the threaded hole is connected with a threaded shaft, and the threaded shaft is fixedly installed on the adjusting disc.

As a further scheme of the invention: the two sides of the sealing baffle are both provided with racks, the racks are matched with a self-locking structure arranged in the mixing box, and the self-locking structure is used for fixing the racks.

As a further scheme of the invention: the self-locking structure comprises a gear meshed and connected with a rack, one side of the gear is connected with a chaste wheel through a connecting shaft, a vertical plate is fixedly mounted on one side of the inner wall of the mixing box, a movable plate which is obliquely arranged is connected to the vertical plate in a rotating mode, an inserting block is arranged at the end of the movable plate, and the inserting block is matched with the chaste wheel; and a third air cylinder which is obliquely arranged is fixedly arranged on one side of the inner wall of the mixing box, and a piston rod of the third air cylinder is rotatably connected with the movable plate.

As a further scheme of the invention: the feeding mechanism comprises a feeding conveying frame, a material storage hopper is fixedly mounted on the feeding conveying frame, and the feeding conveying frame extends to the upper portion of the dispersing mechanism.

The invention has the beneficial effects that:

according to the lime slag conveying device, the lime slag is conveyed into the material storage barrel through the feeding mechanism, the turntable drives the lime slag to rotate in the material storage barrel, and disordered lime slag is blocked by the rotation and the arc-shaped sheets, so that batch uniform conveying and blanking can be realized relatively;

the method is characterized in that titanium gypsum with high moisture content, fluorine gypsum with high sulfur content and sodium sulfate are added into a mixing box to comprehensively produce a sulfur gypsum product, a gypsum raw material required by cement production is used, sulfur trioxide in the gypsum raw material can reach more than 35%, crystal water is more than 10%, and external water is less than 10%, so that the effect of recycling is achieved, and waste of the sulfur gypsum product is avoided; wherein the fluorgypsum belongs to anhydrous gypsum, has no crystal water and contains acidity, the acidity in the fluorgypsum is neutralized by calcium hydroxide of lime mud, and the fluorgypsum is excited by sodium sulfate to rapidly crystallize to produce neutral dihydrate gypsum;

the central shaft is driven to rotate by the driving motor III, the electric arc-shaped plate of the central shaft rotates to accelerate the discharge of conveying, the cylinder I can be driven to push the connecting disc to rotate through the movable connecting block in the process of treatment in the mixing mechanism, the arc-shaped sealing plate is turned over to the upper side, the discharge channel is horizontal, and raw materials are stored through the storage space;

by means of the arrangement of the mixing mechanism, the sealing baffle can be opened and a finished product can be conveyed synchronously in the discharging process, and the sealing baffle can be subjected to self-locking in the opening process, so that safety accidents caused by the sealing baffle are avoided; simultaneously, the stirring structure is convenient to detach and replace and convenient to use.

This application passes through the transmission shaft synchronous drive flabellum and rotates, volatile sulfur trioxide inhales the purifying box in the flabellum with the lime mud, can drive the continuous rotation of active carbon cover under the effect of wind power, the active carbon cover can be even adsorb sulfur trioxide, play the effect of purification, detach the produced pungent smell that sulfur trioxide volatilizees, after avoiding the long-time use of single active carbon layer, the inhomogeneous condition of local absorption appears probably to appear, adsorption effect is poor, and be not convenient for change the active carbon cover.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the feeding mechanism and the dispersing mechanism of the present invention;

FIG. 3 is a schematic view showing the internal structure of the purification mechanism of the present invention;

FIG. 4 is a schematic view of the internal structure of the shredder mechanism of the present invention;

FIG. 5 is a schematic view of the overall construction of the mandrel of the present invention;

FIG. 6 is a schematic view of the internal structure of the mixing mechanism of the present invention;

FIG. 7 is a schematic view of the overall structure of the rotating shaft of the present invention;

fig. 8 is an overall structural schematic view of the self-locking structure of the present invention.

In the figure: 1. a frame; 2. a feeding mechanism; 3. a dispersing mechanism; 4. a crushing mechanism; 5. a mixing mechanism; 6. a purification mechanism; 21. a feeding and conveying frame; 22. a storage hopper; 31. a first motor; 32. a storage barrel; 33. a drive shaft; 34. a mounting frame; 35. a first arc sheet; 36. a connecting plate; 37. a second arc-shaped sheet; 38. a discharge channel; 39. a turntable; 41. a crushing box; 42. a second motor; 43. a first cylinder; 44. a movable connecting block; 45. a crushing roller; 46. a connecting disc; 47. an arc-shaped plate; 48. a central shaft; 49. an arc-shaped sealing plate; 410. a sloping plate; 411. a third motor; 51. a mixing box; 52. a fixed block; 53. a seesaw; 54. a second air cylinder; 55. a first push rod; 56. a second push rod; 57. an L-shaped plate; 58. a motor IV; 59. a sleeve; 510. rotating the ball; 511. a threaded sleeve; 512. a stirring rod; 513. a rack; 514. sealing the baffle plate; 515. a self-locking structure; 516. a guide wheel; 517. a wire rope; 518. a rotating shaft; 519. fixing the disc; 520. an adjusting disk; 521. a threaded shaft; 5151. a chaste tree wheel; 5152. a gear; 5153. inserting a block; 5154. a third air cylinder; 5155. a vertical plate; 5156. a movable plate; 61. an air intake hood; 62. a purification box; 63. a fan blade; 64. an active carbon sleeve; 65. and (4) inserting a shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment,

The invention relates to an improvement method of desulfurized lime mud, which comprises the following steps:

step one, adding 70kg of lime mud, 40kg of fluorgypsum and 30kg of titanium gypsum into improved equipment, and stirring and mixing uniformly;

and step two, adding sodium sulfate which accounts for 0.2 percent of the total gypsum mass, reacting, controlling the temperature to be lower than 60 ℃, and carrying out industrial gypsum crystallization reaction.

Example two

Referring to fig. 1-3, an improved apparatus includes a frame 1, a feeding mechanism 2 is disposed on one side of the frame 1, a dispersing mechanism 3 is disposed on the frame 1, a pulverizing mechanism 4 is disposed on the other side of the frame 1, a mixing mechanism 5 is disposed at the bottom of the pulverizing mechanism 4, and a purifying mechanism 6 is disposed above the feeding mechanism 2, the dispersing mechanism 3, the pulverizing mechanism 4, and the mixing mechanism 5; the feeding mechanism 2 comprises a feeding conveying frame 21, a material storage hopper 22 is fixedly arranged on the feeding conveying frame 21, and the feeding conveying frame 21 extends to the upper part of the dispersing mechanism 3; dispersing mechanism 3 includes the storage bucket 32 of fixed mounting in frame 1, the bottom fixed mounting of storage bucket 32 has a motor 31, fixed mounting has transmission shaft 33 on the output shaft of motor 31, transmission shaft 33 runs through storage bucket 32 and is connected with carousel 39, the fixed mounting of top center department of storage bucket 32 has mounting bracket 34, the bottom fixed mounting of mounting bracket 34 has arc piece one 35, top one side of storage bucket 32 is connected with arc piece two 37 through connecting plate 36, arc piece one 35 and arc piece two 37 all contact with carousel 39, just form curved transfer passage between arc piece one 35 and the arc piece two 37, form discharge passage 38 between arc piece two 37 and the storage bucket 32.

Carry the lime mud to storage bucket 32 in through feed mechanism 2, a starter motor 31, it rotates to drive transmission shaft 33, transmission shaft 33 drives carousel 39 and rotates, and then drive the lime mud and rotate at storage bucket 32, the setting of two 37 arc pieces 35 of arc piece and arc piece of deuterogamying, block through rotatory and arc piece, lime mud with mixed and disorderly, evenly export the unloading in batches, solve the volume and the shape uncontrollable of feed mechanism 2 at every turn in the prior art, unable even transport.

Purification mechanism 6 includes purifying box 62, purifying box 62's bottom fixed mounting has air inlet cover 61, the rotation is connected with flabellum 63 in air inlet cover 61, flabellum 63 and transmission shaft 33 fixed connection. Purifying box 62's inner wall one side fixed mounting has insert axle 65, it has rotatable active carbon cover 64 to peg graft on the insert axle 65, the one end that active carbon cover 64 kept away from insert axle 65 extends to outside the purifying box 62. Opposite arc-shaped sheets are arranged above and below the activated carbon sleeve 64, an air channel is formed by the two arc-shaped sheets, and the activated carbon sleeve 64 is driven to rotate through airflow. Drive flabellum 63 through transmission shaft 33 and rotate, flabellum 63 inhales purifying box 62 with volatilizing sulfur trioxide in the lime mud, can drive the continuous rotation of active carbon cover 64 under the effect of wind power, active carbon cover 64 can be even adsorbs sulfur trioxide, avoid after single active carbon layer uses for a long time, one of them local absorption that probably appears reaches the saturation, another part has not adsorbed yet, the adsorption effect variation to be convenient for change active carbon cover 64.

EXAMPLE III

On the basis of the second embodiment, please refer to fig. 1 to 5, the crushing mechanism 4 includes a crushing box 41, two second motors 42 are vertically installed on one side of the crushing box 41, a speed reducer is fixedly installed at an end of each second motor 42, a crushing roller 45 is rotatably connected to each speed reducer, and the crushing roller 45 extends into the crushing box 41 and is rotatably connected to the crushing box 41; connecting discs 46 are rotatably connected to two sides of the crushing box 41 and below the speed reducer, arc-shaped sealing plates 49 are fixedly mounted between the two connecting discs 46, a discharging channel is formed between the two arc-shaped sealing plates 49, one of the connecting discs 46 is connected with a first air cylinder 43 through a movable connecting block 44, and the first air cylinder 43 is obliquely arranged on the crushing box 41; the inclined plates 410 are fixedly mounted below the crushing rollers 45, a certain storage space is formed by the inclined plates 410 and the crushing rollers 45, and a gap between the two inclined plates 410 is matched with the arc-shaped sealing plate 49.

Two driving motor 42 drive through the reduction gear and smash roller 45 and rotate, smash roller 45 and smash the lime mud of conveying, avoid the kibbling inequality of lime mud of conveying, smash it once more, get rid of through the blowdown way, carry out the in-process of handling in mixing mechanism 5, can drive actuating cylinder 43, promote connection pad 46 through swing joint piece 44 and rotate, and then overturn arc closing plate 49 to the top, arrange the horizontal other of discharge way, save the raw materials through storage space.

And a third motor 411 is fixedly mounted on the other connecting disc 46, a central shaft 48 is fixedly mounted on an output shaft of the third motor 411, the central shaft 48 is arranged in the discharging channel and is rotatably connected with the two connecting discs 46, and a plurality of arc-shaped plates 47 are equidistantly arranged on the outer peripheral surface of the central shaft 48. The driving motor III 411 drives the central shaft 48 to rotate, and the electric arc-shaped plate 47 of the central shaft 48 rotates, so that the conveying discharge can be accelerated.

Example four

On the basis of the third embodiment, please refer to fig. 1 to 8, the mixing mechanism 5 includes a mixing box 51, two fixing blocks 52 are symmetrically installed on one side of the mixing box 51, a seesaw 53 is rotatably connected to the fixing blocks 52, a second cylinder 54 is fixedly installed on one side of the mixing box 51, a piston rod of the second cylinder 54 is movably connected to one side of the seesaw 53, a first push rod 55 and a second push rod 56 are respectively installed at two ends of the seesaw 53, an end of the first push rod 55 extends into the mixing box 51 and is connected with an L-shaped plate 57, the L-shaped plate 57 is slidably connected with an inner wall of the bottom of the mixing box 51, a fourth motor 58 is fixedly installed on one side of the L-shaped plate 57, an output shaft of the fourth motor 58 penetrates through the L-shaped plate 57 and is connected with a rotating shaft 518, and a detachable stirring rod 512 is installed on the rotating shaft 518; the end part of the second push rod 56 extends into the mixing box 51 and is connected with a steel wire rope 517, the steel wire rope 517 is connected with a sealing baffle 514 by a plurality of guide wheels 516 arranged around the inner wall of the mixing box 51, and the end parts of the sealing baffle 514 and the L-shaped plate 57 are provided with inclined parts.

After lime mud enters a mixing box 51, adding titanium gypsum with high water content, fluorgypsum with high sulfur content and sodium sulfate into the mixing box 51, driving a motor IV 58 to drive a rotating shaft 518 to rotate, and further driving a stirring rod 512 to rotate for mixing, wherein the fluorgypsum belongs to anhydrous gypsum, has no crystal water and is acidic, the acidity in the fluorgypsum is neutralized by calcium hydroxide of the lime mud, the sodium sulfate is utilized to excite the fluorgypsum to rapidly crystallize to produce neutral dihydrate gypsum, and the sulphur gypsum product is comprehensively produced by using a gypsum raw material required by cement production, wherein sulfur trioxide in the gypsum raw material can reach more than 35 percent, the crystal water is more than 10 percent, and the external water is less than 10 percent, so that the effect of recycling is achieved, and the waste is avoided; or water and sodium sulfate are added, sulfur trioxide reacts with water to form stable calcium sulfate, and the reaction effect can be promoted by adding sodium sulfate; then, the second air cylinder 54 is driven, one end of the seesaw 53 is pushed outwards, the other end of the seesaw is pushed inwards, the second push rod 56 drives the sealing baffle 514 to ascend through the steel wire rope 517, and the first push rod 55 pushes the L-shaped plate 57 to move, so that finished products are pushed out, discharging is facilitated, and synchronous motion can be performed.

A fixed disc 519 is fixedly installed on the rotating shaft 518, a sleeve 59 is sleeved on the rotating shaft 518, a plurality of thread sleeves 511 are evenly installed on the sleeve 59, stirring rods 512 are connected with the thread sleeves 511 through internal threads, and rotating balls 510 are arranged at the end parts of the stirring rods 512; the end of the rotating shaft 518 is provided with a threaded hole, the threaded hole is connected with a threaded shaft 521, and the threaded shaft 521 is fixedly installed on the adjusting disk 520. The stirring rod 512 is convenient to disassemble and assemble and repair and replace due to the arrangement of the threaded sleeve 511, and due to the arrangement of the ball 510, on one hand, the stirring rod plays a supporting role in the rotating process, and on the other hand, the sleeve 59 can horizontally slide, so that the stirring rod is convenient to disassemble; through the setting of fixed disk 519, adjusting disk 520, screw shaft 521, can cup joint sleeve 59 on pivot 518, through rotatory screw shaft 521, adjusting disk 520 is fixed sleeve 59, the installation of being convenient for and dismantlement.

Both sides of seal baffle 514 all are provided with rack 513, rack 513 and the auto-lock structure 515 adaptation that sets up in the mixing box 51, auto-lock structure 515 is used for fixed rack 513. The self-locking structure 515 comprises a gear 5152 meshed and connected with the rack 513, one side of the gear 5152 is connected with a chaste wheel 5151 through a connecting shaft, a vertical plate 5155 is fixedly mounted on one side of the inner wall of the mixing box 51, a movable plate 5156 which is obliquely arranged is rotatably connected to the vertical plate 5155, an insertion block 5153 is arranged at the end part of the movable plate 5156, and the insertion block 5153 is matched with the chaste wheel 5151; an obliquely arranged air cylinder III 5154 is fixedly mounted on one side of the inner wall of the mixing box 51, and a piston rod of the air cylinder III 5154 is rotatably connected with a movable plate 5156.

In the process that the sealing baffle 514 rises, the rack 513 is driven to move, the gear 5152 is driven to rotate, the gear 5152 drives the chaste wheel 5151 to rotate, the chaste wheel 5151 is fixed through the inserting block 5153, the sealing baffle 514 is subjected to self-locking, safety accidents caused by reverse rotation or damage of a steel wire rope 517 are avoided, and the sealing baffle 514 can be put down by starting the cylinder III 5154 and pulling the movable plate 5156.

The working principle of the invention is as follows: lime mud is conveyed into the material storage barrel 32 through the feeding mechanism 2, the motor I31 is started to drive the transmission shaft 33 to rotate, the transmission shaft 33 drives the rotary disc 39 to rotate so as to drive the lime mud to rotate in the material storage barrel 32, and the arrangement of the arc-shaped pieces I35 and the arc-shaped pieces II 37 is matched, so that the disordered lime mud can be uniformly output and discharged in batches through rotation and arc-shaped piece blocking, and the problems that the feeding amount and the feeding shape of the feeding mechanism 2 in each time cannot be controlled and cannot be uniformly conveyed in the prior art are solved;

the second driving motor 42 drives the crushing roller 45 to rotate through the speed reducer, the crushing roller 45 crushes the conveyed lime mud, uneven crushing of the conveyed lime mud is avoided, the lime mud is crushed again and is discharged through the discharging channel, the third driving motor 411 drives the central shaft 48 to rotate, the electric arc-shaped plate 47 of the central shaft 48 rotates, discharging of conveying can be accelerated, when the mixing mechanism 5 is used for processing, the first driving cylinder 43 can drive the connecting disc 46 to rotate through the movable connecting block 44, the arc-shaped sealing plate 49 is turned over to the upper side, the discharging channel is horizontal, and raw materials are stored through the storage space;

after lime mud enters a mixing box 51, adding titanium gypsum with high water content, fluorgypsum with high sulfur content and sodium sulfate into the mixing box 51, driving a motor IV 58 to drive a rotating shaft 518 to rotate, and further driving a stirring rod 512 to rotate for mixing, wherein the fluorgypsum belongs to anhydrous gypsum, has no crystal water and is acidic, the acidity in the fluorgypsum is neutralized by calcium hydroxide of the lime mud, the sodium sulfate is utilized to excite the fluorgypsum to rapidly crystallize to produce neutral dihydrate gypsum, and the sulphur gypsum product is comprehensively produced by using a gypsum raw material required by cement production, wherein sulfur trioxide in the gypsum raw material can reach more than 35 percent, the crystal water is more than 10 percent, and the external water is less than 10 percent, so that the effect of recycling is achieved, and the waste is avoided; or water and sodium sulfate are added, sulfur trioxide reacts with water to form stable calcium sulfate, and the reaction effect can be promoted by adding sodium sulfate; then, the second air cylinder 54 is driven, one end of the seesaw 53 is pushed outwards, the other end of the seesaw is pushed inwards, the second push rod 56 drives the sealing baffle 514 to ascend through a steel wire rope 517, and the first push rod 55 pushes the L-shaped plate 57 to move, so that finished products are pushed out, discharging is facilitated, and synchronous motion can be performed;

at last transmission shaft 33 drives flabellum 63 and rotates, flabellum 63 inhales purifying box 62 with volatilizing sulfur trioxide in the lime mud, can drive activated carbon cover 64 under the effect of wind and constantly rotate, activated carbon cover 64 can be even adsorbs sulfur trioxide, avoid after single activated carbon layer uses for a long time, one of them local absorption that probably appears reaches the saturation, another part has not adsorbed yet, the adsorption effect variation, and be convenient for change activated carbon cover 64, play the effect of purification.

Although one embodiment of the present invention has been described in detail, the description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. An improved method for desulphurizing lime mud is characterized by comprising the following steps:

step two, adding sodium sulfate, reacting, controlling the temperature to be 60 ℃ below zero, and carrying out industrial gypsum crystallization reaction;

the ratio of the fluorgypsum to the titanium gypsum is as follows: 1-8: 1-5.

2. The improvement method of desulfurized lime mud according to claim 1, characterized in that the improvement apparatus comprises a frame, a feeding mechanism is provided on one side of the frame, a dispersing mechanism is provided on the frame, a pulverizing mechanism is provided on the other side of the frame, a mixing mechanism is provided at the bottom of the pulverizing mechanism, and a purifying mechanism is provided above the feeding mechanism, the dispersing mechanism, the pulverizing mechanism and the mixing mechanism;

the dispersing mechanism comprises a material storage barrel fixedly mounted on the rack, a first motor is fixedly mounted at the bottom of the material storage barrel, a transmission shaft is fixedly mounted on an output shaft of the first motor, the transmission shaft penetrates through the material storage barrel and is connected with the rotary table, a mounting frame is fixedly mounted at the center of the top of the material storage barrel, a first arc-shaped sheet is fixedly mounted at the bottom of the mounting frame, one side of the top of the material storage barrel is connected with a second arc-shaped sheet through a connecting plate, the first arc-shaped sheet and the second arc-shaped sheet are both in contact with the rotary table, an arc-shaped conveying channel is formed between the first arc-shaped sheet and the second arc-shaped sheet, and a material discharging channel is formed between the second arc-shaped sheet and the material storage barrel;

the purification mechanism comprises a purification box, an air inlet cover is fixedly mounted at the bottom of the purification box, fan blades are connected in the air inlet cover in a rotating mode, and the fan blades are fixedly connected with a transmission shaft.

3. The improved method of desulfurized lime mud according to claim 2, wherein an insertion shaft is fixedly installed on one side of the inner wall of the purification box, a rotatable activated carbon sleeve is inserted on the insertion shaft, and one end of the activated carbon sleeve, which is far away from the insertion shaft, extends to the outside of the purification box.

4. The improvement method of desulfurized lime mud according to claim 1, wherein said grinding mechanism comprises a grinding box, two second motors are vertically mounted on one side of said grinding box, a reducer is fixedly mounted on the end of said second motors, a grinding roller is rotatably connected to said reducer, said grinding roller extends into the grinding box and is rotatably connected to the grinding box; connecting discs are rotatably connected to the two sides of the crushing box and below the position speed reducer, arc-shaped sealing plates are fixedly mounted between the two connecting discs, a material discharge channel is formed between the two arc-shaped sealing plates, one of the connecting discs is connected with a first air cylinder through a movable connecting block, and the first air cylinder is obliquely arranged on the crushing box; the lower part of the crushing roller is fixedly provided with inclined plates, and a gap between the two inclined plates is matched with the arc-shaped sealing plate.

5. The improvement method of desulfurized lime mud according to claim 4, wherein a third motor is fixedly mounted on the other connecting disc, a central shaft is fixedly mounted on an output shaft of the third motor, the central shaft is arranged in the discharge channel and is rotatably connected with the two connecting discs, and a plurality of arc-shaped plates are equidistantly arranged on the outer peripheral surface of the central shaft.

6. The improved method of desulfurized lime mud according to claim 1, wherein said mixing mechanism comprises a mixing box, two fixed blocks are symmetrically installed on one side of said mixing box, a seesaw is rotatably connected to said fixed blocks, a second cylinder is fixedly installed on one side of said mixing box, a piston rod of said second cylinder is movably connected to one side of said seesaw, a first push rod and a second push rod are respectively installed at two ends of said seesaw, an end of said first push rod extends into said mixing box and is connected to an L-shaped plate, said L-shaped plate is slidably connected to an inner wall of the bottom of said mixing box, a fourth motor is fixedly installed on one side of said L-shaped plate, an output shaft of said fourth motor penetrates through said L-shaped plate and is connected to a rotating shaft, and a detachable stirring rod is installed on said rotating shaft;

7. The improvement method of desulfurized lime mud according to claim 6, wherein a fixed disk is fixedly mounted on the rotating shaft, a sleeve is sleeved on the rotating shaft, a plurality of thread sleeves are uniformly mounted on the sleeve, a stirring rod is connected in the thread sleeves in a threaded manner, and a rotating ball is arranged at the end part of the stirring rod; the end of the rotating shaft is provided with a threaded hole, the threaded hole is connected with a threaded shaft, and the threaded shaft is fixedly installed on the adjusting disc.

8. The improved method of desulfurized lime mud according to claim 6, wherein racks are disposed on both sides of said seal baffle, said racks being adapted to a self-locking structure disposed in the mixing box, said self-locking structure being used for fixing the racks.

9. The improved method of desulfurized lime mud according to claim 8, wherein said self-locking structure comprises a gear engaged with a rack, one side of said gear is connected with a chaste wheel through a connecting shaft, a vertical plate is fixedly mounted on one side of the inner wall of said mixing box, a movable plate is connected to said vertical plate in an inclined manner, an insertion block is arranged at the end of said movable plate, and said insertion block is fitted with said chaste wheel; and a third air cylinder which is obliquely arranged is fixedly arranged on one side of the inner wall of the mixing box, and a piston rod of the third air cylinder is rotatably connected with the movable plate.

10. The improved method of desulfurized lime mud according to claim 8, wherein said feeding mechanism comprises a feeding conveyor frame, a material storage hopper is fixedly mounted on said feeding conveyor frame, and said feeding conveyor frame extends to above the dispersing mechanism.