A steel belt crystallization apparatus for producing aluminum sulfate

Abstract

The application discloses a steel belt crystallization device for producing aluminum sulfate and relates to the technical field of cooling crystallization equipment. The steel belt crystallization device for producing aluminum sulfate comprises a rotatable steel belt, the steel belt is a continuous belt structure, a plurality of virtual partitions are defined along the width direction of the steel belt, each partition is referred to as a single belt, an elastic bending part is arranged between adjacent single belts, and the elastic bending part allows each single belt to independently elastically deform in the width direction; and a force applying ridge is arranged at the discharging end of the steel belt, the force applying ridge comprises a head arranged between two adjacent single belts, and two inclined parts are arranged at one end of the head close to the discharging end of the steel belt. The steel belt crystallization device for producing aluminum sulfate divides a wide steel belt into a plurality of narrow single belts, accurately extrudes convex points on the single belts by means of the force applying ridge, converts the volume shrinkage stress in the material cooling and solidification process into a favorable driving force for making the material separate from the steel belt, and makes the material more completely separate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooling crystallization equipment, in particular to a steel belt crystallization device for producing aluminum sulfate. BACKGROUND

[0002] Aluminum sulfate is an important chemical raw material, widely used in water treatment, papermaking, printing and dyeing, fire-fighting chemicals and other fields. These downstream industries usually need to dissolve aluminum sulfate into a certain concentration of aqueous solution during production. Flaky aluminum sulfate has a much faster dissolution rate than bulk crystals or powders due to its large specific surface area.

[0003] The steel belt flaking machine is a key equipment that can cool and solidify molten aluminum sulfate and form flaky products. Its basic working principle is to spread the molten material on the surface of the rotating steel belt, and set a spray cooling system below the steel belt and a wind cooling system above the steel belt. The material gradually crystallizes during the conveying process of the steel belt, forming a solid sheet, and finally the sheet is peeled off from the steel belt by a scraper at the discharge end.

[0004] However, the existing wide steel belt flaking machine, while pursuing high output, also has a series of inherent defects, especially when dealing with materials like aluminum sulfate that will produce significant volume shrinkage during solidification. First, the transverse cooling uniformity of the wide steel belt is difficult to guarantee, leading to uneven distribution of material shrinkage stress and forming the situation of "edge easy to detach, middle part adhesion". Specifically, the edge area of the steel belt solidifies and shrinks first due to good heat dissipation conditions and fast cooling speed, and is easy to detach itself. The middle area lags behind in cooling, and when it shrinks, it is restrained by the surrounding solidified area, not only unable to smoothly warp and detach, but also pulling back the detached edge part, or tightly adhering to the surface of the steel belt under the action of internal stress, forming an adhesion dead zone. This makes the equipment largely rely on the forced scraping of the scraper for discharging.

[0005] This over-reliance on the scraper directly leads to a huge load on the scraper, and the strong action of the scraper easily leads to edge damage and fracture of brittle aluminum sulfate during discharging, producing a large amount of irregular fragments and dust. These fragments not only reduce the product yield, but more importantly, they will mix with the qualified flaky products, leading to uneven feeding in the subsequent crushing process, aggravating the phenomenon of over-crushing, and ultimately affecting key indicators such as particle size distribution and bulk density of the end product. SUMMARY

[0006] In view of the shortcomings of the prior art, the present application provides a steel belt crystallization device for producing aluminum sulfate, which solves the problems of large load on the scraper and the generation of irregular fragments and dust.

[0007] To achieve the above object, the present application is implemented by the following technical solutions: a steel belt crystallization device for producing aluminum sulfate, comprising:

[0008] The rotatable steel belt has a continuous belt structure, and a plurality of virtual partitions are defined in the width direction, each partition being referred to as a single belt, and the adjacent single belts are connected by an elastic bending part, which allows each single belt to independently elastically deform in the width direction;

[0009] The force applying ridge is located at the discharge end of the steel belt, and the force applying ridge includes a head portion arranged between the two adjacent single belts, two inclined portions arranged at one end of the head portion close to the discharge end of the steel belt, and an arc-shaped portion arranged at the other end of the inclined portion, and the outer surface of the single belt is provided with a convex point on both sides, which can be extruded by the inclined portion and the arc-shaped portion when the single belt moves to the area of the force applying ridge, so as to form an arching state of the single belt along the width direction at the discharge end of the steel belt, and the elastic bending part is used to compensate the deformation amount of the steel belt in the width direction when the single belt is arched;

[0010] The driven roller is located at the discharge end of the steel belt, and the driven roller is adapted to the arched single belt and the arc-shaped portion, and is used to maintain the arched state of the single belt at the discharge end.

[0011] Further, one end of the steel belt close to the discharge end is provided with a discharge end support, the head portion, the inclined portion and the arc-shaped portion are an integral structure, and the head portion, the inclined portion and the arc-shaped portion are fixed on the discharge end support;

[0012] The driven roller includes an arc-shaped cylinder opposite to the arched portion of the single belt and a recess portion used to connect two adjacent arc-shaped cylinders.

[0013] Further, one end of the steel belt close to the discharge end is provided with a discharge end support, the head portion is fixed on the discharge end support, the inclined portion is rotatably installed on the head portion through a pin shaft, and the arc-shaped portion is fixed on the end of the inclined portion away from the head portion;

[0014] Further, the upper surface of the inclined portion is provided with an extension portion, the micro-oscillation mechanism includes an elliptical wheel located between the two adjacent extension portions, and the elliptical wheel is rotated to push the extension portions to different degrees, so as to continuously change the inclination of the inclined portion;

[0015] Further, the upper surface of the inclined portion is provided with an extension portion, the micro-oscillation mechanism includes an elliptical wheel located between the two adjacent extension portions, and the elliptical wheel is rotated to push the extension portions to different degrees, so as to continuously change the inclination of the inclined portion;

[0016] The driven roller includes:

[0017] The rotor is provided with the same number of single belts, and a plurality of rotors are arranged side by side in the axial direction, the rotor has a circumferential degree of freedom, a drum-shaped cylinder is arranged on the rotor in the radial direction through an expansion structure, and the drum-shaped cylinder directly contacts the inner surface of the single belt;

[0018] The stator is located in the rotor and is used for reciprocating the expansion structure during rotation of the rotor, so as to continuously change the extension length of the drum-shaped cylinder to adapt to the dynamic arching of the arching part.

[0019] Further, the rotor comprises a carrier cylinder, two adjacent carrier cylinders are fixedly connected through a connecting rod, and the two ends of the rotor are provided with cylinder shafts;

[0020] The stator comprises a fixed disc, a ring groove is formed in the circumferential surface of the fixed disc, the groove bottom of the ring groove is a wave surface, and the expansion structure can be expanded and contracted when sliding along the wave surface in the circumferential direction.

[0021] Further, the expansion structure comprises a guide cylinder fixed on the outer surface of the carrier cylinder, a rod member is slidingly arranged in the guide cylinder, a spring is arranged between the rod member and the carrier cylinder, one end of the rod member is fixed with the drum-shaped cylinder, the other end of the rod member is inserted into the ring groove, and a ball is arranged in the ring groove; a limiting part is arranged on the end of the rod member close to the ball to limit the rod member from being separated from the ring groove.

[0022] Further, the micro-oscillation mechanism further comprises:

[0023] The turbine is coaxial with the elliptical wheel, the shafts of the two are mounted on the mechanical box through bearings, and the mechanical box is fixed on the discharging end support through a hanger;

[0024] The worm is engaged on one side of the turbine, the worms are fixedly connected through a cross shaft, and the upper portion of the discharging end support is provided with a driving source for driving the cross shaft to rotate.

[0025] Further, the head part, the inclined part and the arc-shaped part are all not in contact with the single belt, so as to reduce the abrasion between the force applying ridge and the single belt.

[0026] Further, the head part and the inclined part are further arranged below the discharging end of the steel belt, and the upper and lower head parts and inclined parts are symmetrical along the transverse diameter of the driven roller;

[0027] The two sides of the steel belt are provided with side frames, the side frames are provided with forced recovery tracks, and the forced recovery tracks are located in the region opposite to the upper surface of the lower layer of the steel belt and the elastic bending part, and are used for re-folding the elastic bending part.

[0028] Further, the region opposite to the elastic bending part on the upper surface of the steel belt is provided with a partition main body, the partition main body is used for partitioning the two adjacent single belts, and the convex points are located on the side of the partition main body close to the elastic bending part.

[0029] The partition main body is a fixed structure and does not rotate with the steel belt.

[0030] The present invention has the following beneficial effects:

[0031] (1) The steel strip crystallization device for producing aluminum sulfate fundamentally improves the descraping efficiency and quality, and realizes the synergy of autonomous descraping and low-loss scraping. By dividing the wide steel strip into multiple narrow single strips and combining the force ridge to precisely squeeze the protrusions on the single strips, the volume shrinkage stress during the material cooling and solidification process is transformed into a favorable driving force to promote the material to detach from the steel strip, making the descraping more thorough. Each single strip can independently generate uniform lateral warping, especially eliminating the adhesion dead zone in the middle area of ​​the wide steel strip, so that most of the material has detached from the surface of the steel strip before contacting the scraper, thereby greatly reducing the load on the scraper and fundamentally avoiding forced shutdown and cleaning caused by material adhesion, thus ensuring the stability of continuous production.

[0032] (2) The steel strip crystallization device used for producing aluminum sulfate, through the micro-swing mechanism and the adaptive driven roller, forms a dynamic arching effect of a single belt, which further ensures the desiccation efficiency of aluminum sulfate.

[0033] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0034] Figure 1 This is an overall diagram of Embodiment 1 of the present invention;

[0035] Figure 2 This is an overall view of the steel strip in Embodiment 1 of the present invention;

[0036] Figure 3 For the present invention Figure 2 A partial view;

[0037] Figure 4 This is a cross-sectional view of the steel strip of the present invention when a single strip is not arched;

[0038] Figure 5 This is a cross-sectional view of the steel strip of the present invention when a single strip arches.

[0039] Figure 6 For the present invention Figure 2 Enlarged view of area A;

[0040] Figure 7 This is an external view of the driven roller in Embodiment 1 of the present invention;

[0041] Figure 8 This is an orthographic projection of the active roller in Embodiment 1 of the present invention;

[0042] Figure 9 This is a partial view of Embodiment 2 of the present invention;

[0043] Figure 10 This is an exploded view of the roller frame and steel belt of the present invention;

[0044] Figure 11 For the present invention Figure 10 A partial view;

[0045] Figure 12 For the present invention Figure 11 Enlarged view of area B;

[0046] Figure 13 This is an exploded view of the mechanical box and worm gear of the present invention;

[0047] Figure 14 For the present invention Figure 13 Enlarged view of area C;

[0048] Figure 15 This is an assembly diagram of the elliptical wheel and turbine of the present invention;

[0049] Figure 16 This is an external view of the driven roller in Embodiment 2 of the present invention;

[0050] Figure 17 This is an assembly diagram of a single carrier cylinder and a single stator in Embodiment 2 of the present invention;

[0051] Figure 18 For the present invention Figure 17 Exploded view;

[0052] Figure 19 This is an assembly drawing of the telescopic structure of the present invention;

[0053] Figure 20 This is a schematic diagram of the structure of the fixing disk of the present invention.

[0054] In the figure, 1, fan cover; 2, fan; 3, discharge pipe; 4, steel belt; 41, single belt; 411, initial cooling position; 412, forced cooling position; 413, upper arch position; 414, maintaining position; 415, initial recovery position; 416, forced recovery position; 42, elastic bending part; 43, convex point; 5, force applying ridge; 51, head; 52, inclined part; 521, extension; 53, arc part; 54, straight part; 6, driving roller; 61, avoiding groove; 7, driven roller; 71, arc cylinder; 72, recessed part; 73, rotor; 731, maintaining disc; 732, connecting rod; 733, carrying cylinder; 734, cylinder shaft; 74, waist drum cylinder; 75, telescopic structure; 751, ball; 752, rod; 753, limiting part; 754, guide cylinder; 755, spring; 76, stator; 761, fixed disc; 762, fixed shaft; 763, wave surface; 81, driving source; 82, cross shaft; 83, mechanical box; 84, hanger; 85, worm; 86, turbine; 87, oval wheel; 9, baffle main body; 91, baffle frame; 10, water cooling assembly; 11, forced recovery track; 12, discharge end support; 13, roller frame; 14, side frame; 15, scraper main body. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0056] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the indicated component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0057] The following is based on Figures 1-20 The steel belt crystallization device for producing aluminum sulfate provided by the embodiments of the present application is described.

[0058] In the first embodiment, the present embodiment refers to Figures 1-8 .

[0059] The steel belt crystallization device for producing aluminum sulfate comprises driving rollers 6, driven rollers 7, a rotatable steel belt 4, a discharge pipe 3 and roller frames 13, the driving rollers 6 and the driven rollers 7 are used to drive the steel belt 4 to rotate, the discharge pipe 3 is located above the driving rollers 6 and is used to discharge liquid aluminum sulfate onto the upper surface of the steel belt 4, and the roller frames 13 are used to support the two groups of driving rollers 6 and driven rollers 7.

[0060] The provided steel belt 4 is a continuous belt structure, and a plurality of virtual partitions are defined along the width direction, each partition is referred to as a single belt 41, and the adjacent single belts 41 are connected through elastic bending portions 42, the elastic bending portions 42 allow each single belt 41 to independently elastically deform in the width direction, the surface of the single belt 41 is used to accommodate liquid aluminum sulfate, and the aluminum sulfates on the adjacent two single belts 41 do not contact each other, that is, when the liquid aluminum sulfate is discharged from the discharge pipe 3, the liquid aluminum sulfates on the single belts 41 do not contact each other, so that the entire steel belt 4 is a single entity, but the elastic bending portions 42 simulate the behavior of a narrow belt, so that the aluminum sulfate pieces on the steel belt 4 are uniformly warped in the transverse direction, facilitating the stripping of the aluminum sulfate pieces.

[0061] The elastic bending portion 42 can be U-shaped or V-shaped, the bending portion thereof faces the inner cavity of the steel belt 4, and the two open segments thereof are welded on the side surfaces of the opposite single belts 41, for forming the steel belt 4 as a whole by the single belts 41 and the elastic bending portions 42, and cooling mechanisms are arranged above and below the single belts 41, the cooling mechanisms comprise air cooling above and water cooling below; ① the air cooling above is installed in the following manner: side frames 14 are arranged on both sides of the steel belt 4, a wind cover 1 is assembled between the side frames 14 on both sides, the wind cover 1 is located directly above the steel belt 4 and is spaced apart from the steel belt 4 by a height of 5-8 cm, a fan 2 is mounted on the top of the wind cover 1, and the fan 2 delivers external airflow to the upper surface of the steel belt 4 for cooling the liquid aluminum sulfate; ② the water cooling below comprises a water cooling assembly 10, which mainly comprises a water pump, a water pipe, a spray head and a water collecting bucket, the water collecting bucket is located in the inner cavity of the steel belt 4, the spray head is used to spray water to the upper layer of the steel belt 4, so as to cool the aluminum sulfate from the lower surface, the sprayed water is collected by the water collecting bucket and is repeatedly used in the water source area; under the condition that the aluminum sulfate is cooled above and below, the aluminum sulfate gradually crystallizes into pieces.

[0062] Preferably, the elastic bending portion 42 is made of elastic stainless steel.

[0063] In the prior art, the steel belt 4 relies on the turning of the driven rollers 7 to preliminarily separate the crystallized aluminum sulfate from the steel belt 4, and then a scraper is used to scrape off the remaining aluminum sulfate in the separated area, however, in the above-mentioned preliminary separation mode by turning, part of the adhered aluminum sulfate is difficult to separate, resulting in an increased load of the scraper.

[0064] Therefore, in combination with the above-mentioned problems, the steel belt crystallization device for producing aluminum sulfate is provided. Figures 2-4As shown, a force applying ridge 5 is arranged which does not rotate with the steel belt 4, and the force applying ridge 5 is located on the upper surface of the upper layer of the discharge end of the steel belt 4.

[0065] The force applying ridge 5 comprises a head 51 arranged between two adjacent single belts 41, and the head 51 is a pointed end close to one end of the driving roller 6, and the head 51 is provided with two inclined portions 52 close to the discharge end of the steel belt 4, and the outer surface of the single belt 41 is provided with a convex point 43 on both sides, and when the single belt 41 moves to the area of the force applying ridge 5, the convex point 43 is limited by the inclined portion 52, so that the two rows of convex points 43 on the same single belt 41 can be pressed by the inclined portion 52, forming the state of the single belt 41 arching along the width direction of the steel belt 4 at the discharge end (as shown in Figure 5 ), and since the single belt 41 arches in the area of the inclined portion 52, the single belt 41 will pull the elastic bending portion 42 on the side to compensate for the deformation of the steel belt 4 in the width direction when the single belt 41 arches.

[0066] In addition, in order to ensure that the single belt 41 can pass through the driven roller 7 while maintaining the arched state, an arc-shaped portion 53 is arranged at the other end of the inclined portion 52, and the arc-shaped portion 53 is located on the side of the driven roller 7 away from the driving roller 6 in the form of a half ring, and when the single belt 41 is gradually pressed and arched by the inclined portion 52, it can reach the position of the arc-shaped portion 53, and maintain the arched state at this position, and the driven roller 7 is not a cylindrical drum, and is adapted to the shape of the arched single belt 41, and ensures that the driven roller 7 cooperates with the driving roller 6 to drive the single belt 41 to rotate.

[0067] The steel belt 4 is provided with a discharge end support 12 close to one end of the discharge end, and the head 51, the inclined portion 52 and the arc-shaped portion 53 are of an integrated structure, and the head 51, the inclined portion 52 and the arc-shaped portion 53 are fixed on the discharge end support 12.

[0068] Taking the state of Figure 3 , four arched positions are selected for comparison in the area opposite to the inclined portion 52 of one of the single belts 41, and the four positions are respectively the a position, the b position, the c position and the d position, and the order of the arching heights of the four positions is a position < b position < c position < d position, and the order of the widths of the four positions is a position > b position > c position > d position, that is, the single belt 41 starts to arch from the a position, and reaches the maximum height at the d position, and passes through the driven roller 7 at the maximum arching height.

[0069] Preferably, the discharge of the discharge pipe 3 should be controlled to be intermittent, so that the formed aluminum sulfate crystal piece is discontinuous in the direction of the single belt 41, and then when one aluminum sulfate crystal piece arches at the arching portion, it does not affect the aluminum sulfate which has not yet completely crystallized in front.

[0070] Preferably, the head 51 and the inclined part 52 are also arranged below the discharge end of the steel belt 4, and the upper and lower head 51 and inclined part 52 are symmetrical along the transverse diameter of the driven roller 7, so that when the single belt 41 gradually enters the area of the lower inclined part 52, the convex point 43 loses the extrusion force, and thus no longer arches due to the rebound of the elastic bending part 42, i.e. gradually recovers from the state shown in Figure 5 to the state shown in Figure 4 .

[0071] This arrangement is to ensure that the single belt 41 can recover to the state when it passes through the driving roller 6 after passing through the driven roller 7.

[0072] Further, in order to ensure that the elastic bending part 42 can recover completely, a forced recovery track 11 is arranged at the area of the lower surface of the steel belt 4 opposite to the elastic bending part 42, for gathering the elastic bending part 42 again, which is directly fixed on the side frame 14 (not shown in the figure).

[0073] Preferably, the head 51, the inclined part 52 and the arc-shaped part 53 do not contact the single belt 41, so as to reduce the wear between the force applying ridge 5 and the single belt 41.

[0074] Furthermore, in order to avoid the liquid discharged from the discharge pipe 3 from flowing freely to the single belt 41, and then the liquid on the adjacent two single belts 41 mixing with each other, a partition body 9 is arranged at the area of the upper surface of the steel belt 4 opposite to the elastic bending part 42 (the position of the partition body 9 corresponds to the position of the elastic bending part 42), which is used to separate the adjacent two single belts 41, so as to avoid the mixing of the liquid on the adjacent two single belts 41, and avoid the liquid entering the area of the elastic bending part 42.

[0075] Preferably, the partition body 9 is arranged only in a part of the area of the discharge end, and in this area, the aluminum sulfate liquid has not completely crystallized, but it has already stopped flowing freely.

[0076] Preferably, as shown in Figure 6 , the convex point 43 is arranged at the side of the partition body 9 close to the elastic bending part 42, so as to avoid the difficult-to-clean phenomenon caused by flowing to the convex point 43 when the aluminum sulfate liquid can still flow freely. The partition body 9 is a fixed structure and does not rotate with the steel belt 4, and is fixed on the roller frame 13 through a partition frame 91.

[0077] The scraper body 15 in the embodiment is preferably arranged at the position of the upper layer of the steel belt 4 close to the discharge end, as shown in Figure 3 .

[0078] In the embodiment, in order to ensure that the steel belt 4 can contact the driven roller 7 and rotate, the driven roller 7 is arranged to be higher than the driving roller 6, and the driven roller 7 is arranged to be higher than the discharge end of the steel belt 4, as shown in Figure 7 and Figure 8As shown, the driven roller 7 is arranged in a cylindrical structure with arc rollers 71 and recesses 72, the driven roller 7 includes arc rollers 71 opposite to the arch of the single belt 41, the arch of the arc roller 71 is adapted to the arch of the single belt 41 at the d position, and the recess 72 is used to connect two adjacent arc rollers 71, and the recess 72 is adapted to the elastic bending part 42; and the area on the driving roller 6 opposite to the elastic bending part 42 is provided with a avoiding groove 61.

[0079] It should be noted that, referring to Figure 3 As shown, there are seven groups of single belts 41, but in fact only five groups of single belts 41 are used to contain aluminum sulfate, the width of the two groups of single belts 41 at the edge is smaller, and they only play a stabilizing role, so the side of the two groups of force ridges 5 close to the edge of the steel belt 4 should not be assembled with the inclined part 52, and the inclined part 52 is replaced with the straight part 54, so that the straight part 54 will not push the protrusions 43 on the two groups of single belts 41 at the edge, that is, the two groups of single belts 41 at the edge will not arch, and they will always maintain a non-arching state.

[0080] In use (when working), referring to Figure 2 , in fact, the area passed by the single belt 41 is divided into the following types, one, the initial cooling position 411, the length of this position is the same as the length of the partition body 9, the aluminum sulfate in this area has not yet crystallized, but it has already stopped flowing; two, the forced cooling position 412, the length of this position is larger, forced cooling is performed at this position to achieve the purpose of completing the crystallization of aluminum sulfate; three, the arching position 413, which is close to the driven roller 7, the single belt 41 is arched by the force ridge 5 applying pressure to the protrusion 43, so as to promote the crystallized aluminum sulfate to separate from the single belt 41; four, the maintaining position 414, which is located at the periphery of the driven roller 7, is used to maintain the arched state of the single belt 41, so that the single belt 41 passes through the driven roller 7 in an arched state, thereby further improving the stripping efficiency and reducing the burden on the scraper; five, the initial recovery position 415, which is located below the arching position 413, gradually bends the elastic bending part 42 through the limiting of the lower force ridge 5 to the protrusion 43 and the resetting action of the elastic bending part 42; six, the forced recovery position 416, which is located in the area opposite to the elastic bending part 42 on the lower surface of the steel belt 4, is used to reset the elastic bending part 42; seven, the stable moving position, which is located between the forced recovery position 416 and the initial cooling position 411, at this position, the steel belt 4 rotates stably.

[0081] Example two, referring to Figures 9-20 .

[0082] The difference between the embodiment and the embodiment one is that the inclination part 52 and the arc part 53 are set to a dynamic change state, so that the extrusion of the single belt 41 is dynamic extrusion, further strengthening the aluminum sulfate stripping effect of the scale, specifically, one end of the steel belt 4 close to the discharge end is provided with a discharge end support 12, the head part 51 is fixed on the discharge end support 12, that is, the position of the head part 51 is fixed, and the inclination part 52 is rotatably installed on the head part 51 through a pin shaft, the arc part 53 is fixed on one end of the inclination part 52 away from the head part 51, and a micro swing mechanism for driving the two inclination parts 52 on the same head part 51 to reciprocatingly and slightly rotate is also arranged, so that the arching part is dynamically arched, and the driven roller 7 dynamically adapts to the arching part, when the single belt 41 is arched in a dynamic form, the surface scale of aluminum sulfate can be better stripped from the single belt 41.

[0083] In order to realize the slight swing of the inclination part 52, the micro swing mechanism is combined with the inclination part 52. Figures 11-15 As shown in the figure, the upper surface of the inclination part 52 is provided with an extension part 521, the micro swing mechanism includes an oval wheel 87 located between the two adjacent extension parts 521, when the oval wheel 87 rotates, it can be used to push the extension part 521 to different degrees, so that the inclination of the inclination part 52 changes continuously, ensuring that the inclination part 52 reciprocatingly and slightly rotates, so that the arching state of the single belt 41 changes continuously.

[0084] The micro swing mechanism also includes a worm wheel 86 and a worm 85, the worm wheel 86 is coaxial with the oval wheel 87 and located above the oval wheel 87, the shafts of the two are installed on the mechanical box 83 through bearings, the mechanical box 83 is fixed on the discharge end support 12 through a hanger 84, the worm 85 is engaged on one side of the worm wheel 86, the worms 85 are fixed through a horizontal shaft 82, the upper side of the discharge end support 12 is provided with a driving source 81 for driving the horizontal shaft 82 to rotate, the driving source 81 is a structure composed of a motor and a belt pulley, which will not be described here.

[0085] In order to realize that the driven roller 7 dynamically adapts to the change of the arching state of the single belt 41, the driven roller 7 is also set to a dynamically changeable state, which includes a rotor 73 and a stator 76, the rotor 73 is provided with the same number as the single belt 41, and a plurality of rotors 73 are arranged side by side along the axial direction, the rotor 73 has a circumferential degree of freedom, the rotor 73 includes a carrier cylinder 733, two adjacent carrier cylinders 733 are fixed through a connecting rod 732, the rotor 73 (carrier cylinder 733) is provided with a drum-shaped cylinder 74 through a telescopic structure 75 along the radial direction, the drum-shaped cylinder 74 directly contacts with the inner surface of the single belt 41, and the stator 76 is located in the rotor 73.

[0086] As shown in the figure, Figures 16-18As shown in this embodiment, when the single belt 41 contacts the drum-shaped cylinder 74, due to the action of friction, the single belt 41 rotates and the drum-shaped cylinder 74 revolves around the center of the rotor 73. The rotor 73 rotates accordingly. When the rotor 73 rotates, the stator 76 controls the telescopic structure 75 to reciprocate and extend, so that the extension length of the drum-shaped cylinder 74 changes continuously, thereby adapting to the dynamic arching of the arched part of the single belt 41. That is, when the single belt 41 arches upward, the drum-shaped cylinder 74 extends with the telescopic structure 75, so that the drum-shaped cylinder 74 fits against the arched single belt 41. Conversely, when the single belt 41 slightly returns to its original position, the drum-shaped cylinder 74 shortens with the telescopic structure 75, so that the drum-shaped cylinder 74 fits against the slightly returned single belt 41, maintaining the conveying of the single belt 41.

[0087] like Figure 11 and Figure 16 Preferably, the rotor 73 has two end bearing disks 731. The bearing disks 731 are in contact with two very narrow single belts 41 on both sides (the two single belts 41 on the edge do not carry or transport aluminum sulfate). It should be noted that in order to keep the two single belts 41 on both sides stable and fixed, the straight part 54 in this embodiment is also fixed on the discharge end bracket 12 and the extension part 521 is not assembled, so that when the two elliptical wheels 87 on the edge rotate, the straight part 54 does not move.

[0088] Furthermore, a cylindrical shaft 734 is provided at both ends of the rotor 73. The cylindrical shaft 734 is fixed on the support plate 731 and is rotatably mounted on the side frame 14 through bearings, so that it can rotate freely.

[0089] Combination Figures 18-20 As shown, in order to realize the telescopic structure 75 telescopic control by stator 76, stator 76 here includes fixed disk 761 located in carrier cylinder 733. Two adjacent fixed disks 761 are fixed together by fixed shaft 762, and fixed shaft 762 is fixed on side frame 14.

[0090] The fixed plate 761 has a groove on its circumference, and the bottom of the groove is a wave-shaped surface 763. The telescopic structure 75 includes a guide cylinder 754 fixed to the outer surface of the carrier cylinder 733. A rod 752 is slidably arranged in the guide cylinder 754. A spring 755 is provided between the rod 752 and the carrier cylinder 733. One end of the rod 752 is fixed to the waist drum-shaped cylinder 74, and the other end is inserted into the groove and a ball bearing 751 is installed. When the rotor 73 rotates, the ball bearing 751 rolls on the wave-shaped surface 763, thereby realizing the pushing and pulling of the rod 752.

[0091] Preferably, a limiting part 753 is provided at the end of the rod 752 near the ball 751 to restrict it from leaving the groove.

[0092] In this embodiment, the scraper body 15 is preferably located on the lower layer of the steel belt 4 near the discharge end, as shown in the reference. Figure 11As shown, this is due to the better effect of dynamic peeling of the aluminum sulfate sheet in the embodiment, which can almost be peeled in all directions, and the scraper body 15 here only plays a role in scraping fine debris, and only needs to lightly scrape the debris in the lower layer, and the scraped debris can be transported to the fine debris collection box through the guide plate.

[0093] In use (when working), the overall mode of the embodiment is similar to that of the first embodiment, and the only difference is in the different upper arch positions 413, force application ridges 5 and initial recovery positions 415. In the embodiment, when the single belt 41 reaches the upper arch position 413, the force application ridges 5 drive the inclined portion 52 and the arc-shaped portion 53 to swing slightly under the action of the driving source 81, the turbine 86, the worm 85 and the elliptical wheel 87, so as to make the aluminum sulfate sheet in a dynamic arching state to remove the aluminum sulfate sheet, and when the single belt 41 contacts the waist drum-shaped cylinder 74, the single belt 41 rotates due to the friction, the waist drum-shaped cylinder 74 revolves around the center of the rotor 73, and the rotor 73 rotates. When the rotor 73 rotates, the stator 76 controls the reciprocating structure 75 to reciprocate, so as to change the extension length of the waist drum-shaped cylinder 74, so as to adapt to the dynamic arching of the arching portion of the single belt 41. That is, when the single belt 41 arches upward, the waist drum-shaped cylinder 74 is elongated with the reciprocating structure 75, so that the waist drum-shaped cylinder 74 is attached to the single belt 41 which arches upward, and vice versa. When the single belt 41 is slightly reset, the waist drum-shaped cylinder 74 is shortened with the reciprocating structure 75, so that the waist drum-shaped cylinder 74 is attached to the single belt 41 which is slightly reset, thereby maintaining the conveying of the single belt 41.

[0094] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0095] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details of the application, and the application is not limited to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the specification. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A steel belt crystallization apparatus for producing aluminum sulfate, characterized by, The utility model relates to a steel belt (4) can rotate, the steel belt (4) is continuous strip structure, and a plurality of virtual partitions are defined along the width direction, each partition is called a single strip (41), and the adjacent single strip (41) is connected through the elastic bending part (42), the elastic bending part (42) allows each single strip (41) to independently occur elastic deformation in the width direction, and the single strip (41) is equipped with cooling mechanism upside and downside; The force ridge (5) is located at the discharging end of the steel belt (4), the force ridge (5) includes the head (51) between the adjacent two single strips (41), the head (51) is equipped with two inclined parts (52) at one end close to the discharging end of the steel belt (4), the other end of the inclined part (52) is equipped with the arc part (53), the outer surface both sides of the single strip (41) are equipped with the convex point (43), the convex point (43) is extruded by the inclined part (52) and the arc part (53) when moving to the area of the force ridge (5) with the single strip (41), forms the state that the single strip (41) at the discharging end of the steel belt (4) is arched along the width direction, the elastic bending part (42) is elastic stainless steel, is used for compensating the deformation amount of the steel belt (4) in the width direction when the single strip (41) is arched; The driven drum (7) is located at the discharging end of the steel belt (4), the driven drum (7) is adapted with the arched single strip (41) and the arc part (53), is used for maintaining the arched state of the single strip (41) at the discharging end; The driving drum (6) is used for driving the steel belt (4) to rotate, the discharging pipe (3) is located above the driving drum (6), and the area of the driving drum (6) opposite the elastic bending part (42) is provided with the avoiding slot (61); The arc part (53) is located at the side of the driven drum (7) away from the driving drum (6) in the form of half ring, when the single strip (41) is gradually extruded and arched by the inclined part (52), it can reach the position of the arc part (53), and the arched state is maintained at the position; The head (51) and the inclined part (52) are also arranged below the discharging end of the steel belt (4), and the upper and lower head (51) and inclined part (52) are symmetrical along the transverse diameter of the driven drum (7); Both sides of the steel belt (4) are provided with side frames (14), the forced recovery track (11) is installed on the side frame (14), and the forced recovery track (11) is located at the area opposite the elastic bending part (42) on the lower surface of the steel belt (4), and is used for re-folding the elastic bending part (42). One end of the steel belt (4) close to the discharging end is provided with a discharging end support (12), the head (51), the inclined part (52) and the arc part (53) are an integral structure, and the head (51), the inclined part (52) and the arc part (53) are fixed on the discharging end support (12); 2. A steel belt crystallization apparatus for producing aluminum sulfate according to claim 1, characterized by, The driven drum (7) includes the arc cylinder (71) opposite the arched part of the single strip (41) and the recess (72) used for connecting the adjacent two groups of arc cylinders (71). ​ 3. A steel belt crystallization apparatus for producing aluminum sulfate according to claim 1, characterized by, The steel belt (4) is provided with a discharging end support (12) at one end close to the discharging end, the head (51) is fixed on the discharging end support (12), the inclined part (52) is rotatably installed on the head (51) through a pin shaft, and the arc-shaped part (53) is fixed at one end of the inclined part (52) away from the head (51); The micro-oscillation mechanism is further used for driving the two inclined parts (52) on the same head (51) to reciprocatingly and slightly rotate, so that the arching part is dynamically arched, and the driven roller (7) dynamically adapts to the arching part.

4. The steel belt crystallization apparatus for producing aluminum sulfate according to claim 3, characterized by The upper surface of the inclined part (52) is provided with an extension part (521), the micro-oscillation mechanism comprises an elliptical wheel (87) located between the two adjacent extension parts (521), and the elliptical wheel (87) is rotated to push the extension parts (521) to different degrees, so that the inclination of the inclined part (52) is continuously changed. The driven roller (7) comprises: The rotors (73) are provided with the same number as the single belts (41), and a plurality of groups of rotors (73) are arranged side by side in the axial direction, the rotors (73) have a circumferential degree of freedom, the rotors (73) are provided with the drum-shaped cylinders (74) installed thereon in the radial direction through the telescopic structures (75), and the drum-shaped cylinders (74) directly contact the inner surfaces of the single belts (41); The stator (76) is located in the rotor (73) and is used for reciprocatingly and telescopically driving the telescopic structures (75) in the process of rotating the rotor (73), so that the extension lengths of the drum-shaped cylinders (74) are continuously changed to adapt to the dynamic arching of the arching part.

5. A steel belt crystallization apparatus for producing aluminum sulfate according to claim 4, characterized in that, The rotor (73) comprises carrier cylinders (733), the two adjacent carrier cylinders (733) are fixedly connected through connecting rods (732), and the two ends of the rotor (73) are provided with cylinder shafts (734). The stator (76) comprises a fixed disc (761), the circumferential surface of the fixed disc (761) is provided with a ring groove, the groove bottom of the ring groove is a wave surface (763), and the telescopic structure (75) can be telescopically slid along the wave surface (763).

6. A steel belt crystallization apparatus for producing aluminum sulfate according to claim 5, characterized by The telescopic structure (75) comprises a guide cylinder (754) fixed on the outer surface of the carrier cylinder (733), a rod member (752) is slidably arranged in the guide cylinder (754), a spring (755) is arranged between the rod member (752) and the carrier cylinder (733), one end of the rod member (752) is fixed with the drum-shaped cylinder (74), the other end of the rod member (752) is inserted into the ring groove, and a ball (751) is arranged. A limiting part (753) is arranged at one end of the rod member (752) close to the ball (751), and the rod member (752) is limited from being separated from the ring groove.

7. A steel belt crystallization apparatus for producing aluminum sulfate according to claim 4, characterized by, The micro-oscillation mechanism further comprises: A turbine (86) coaxial with the elliptical wheel (87), the shafts of the two are installed on the mechanical box (83) through bearings, and the mechanical box (83) is fixed on the discharging end support (12) through a hanger (84); A worm (85) engaged on one side of the turbine (86), the worms (85) are fixedly connected through a horizontal shaft (82), and the upper portion of the discharging end support (12) is provided with a driving source (81) for driving the horizontal shaft (82) to rotate.

8. A steel belt crystallization apparatus for producing aluminum sulfate according to any one of claims 1 to 7, characterized in that, The head (51), the inclined part (52) and the arc-shaped part (53) are not in contact with the single belt (41), so as to reduce the abrasion between the force applying ridge (5) and the single belt (41).

9. The steel belt crystallization apparatus for producing aluminum sulfate according to claim 1, characterized by, The upper surface of the steel belt (4) is provided with a partition body (9) opposite to the elastic bending part (42), the partition body (9) is used for partitioning two adjacent single belts (41), and the convex point (43) is located on one side of the partition body (9) close to the elastic bending part (42). The partition body (9) is a fixed structure and does not rotate with the steel belt (4).

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