Efficient pre-reactor for anhydrous hydrogen fluoride

Abstract

The invention relates to the field of reaction devices for anhydrous hydrogen fluoride production, in particular to an efficient pre-reactor for anhydrous hydrogen fluoride, which comprises a reaction tank, the bottom of the reaction tank is fixedly connected with a transmission motor, the rotating end of the transmission motor penetrates through the reaction tank and is fixedly connected with a transmission rod, and the transmission rod is rotatably connected between the top and the bottom of the reaction tank. The high-efficiency pre-reactor for anhydrous hydrogen fluoride is composed of a filtering and crushing mechanism and a transmission mechanism, through cooperative use of a transmission rod, a filtering and crushing mechanism, a transmission mechanism and other parts, in the process that the transmission rod drives a cross-shaped stirring blade to rotate, under the cooperation of the transmission mechanism and the filtering and crushing mechanism, a filtering plate extends out of the side wall of a filtering sleeve and moves towards the inner wall of a reaction tank; filtered large-particle-size reactants abut against the inner wall of the reaction tank, meanwhile, the large-particle-size reactants and the inner wall of the reaction tank are rubbed and smashed in the process that the filter sleeve synchronously rotates along with the cross-shaped stirring blades, and the fluorite powder reaction effect is improved.

Description

Technical Field

[0001] The invention relates to the field of reaction devices for producing anhydrous hydrogen fluoride, in particular to a high-efficiency pre-reactor for anhydrous hydrogen fluoride. Background Art

[0002] The traditional method of producing anhydrous hydrogen fluoride is to slightly mix fluorite powder and sulfuric acid to produce hydrogen fluoride. At this time, the inside of the reactor needs to be rotated by a stirring rod to mix the fluorite powder and the sulfuric acid liquid.

[0003] The existing patent (Announcement No.: CN117282396A) discloses a high-efficiency pre-reactor device for anhydrous hydrogen fluoride, including a frame, an operating platform is arranged on the top of the frame, a feeding device is arranged on one side of the operating platform, the feeding device is connected to a stirring device, and a heating base is arranged at the bottom of the stirring device. In the process of implementing the scheme, the invention found that the following problems in the prior art have not been well solved: 1. Due to the uneven size uniformity of fluorite powder particles, when there are larger fluorite particles inside the fluorite powder, the large particles of fluorite powder are difficult to react quickly with sulfuric acid during the use of the reactor; 2. The device only stirs the fluorite powder through the stirring shaft. Since the fluorite powder particles will produce gypsum during the reaction, and the gypsum can only be removed from the surface of the fluorite powder particles during a long-term stirring process, it is difficult to efficiently clean the gypsum, which affects the reaction efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an efficient pre-reactor for anhydrous hydrogen fluoride to solve the problems raised in the above background technology: 1. In the process of using some existing anhydrous hydrogen fluoride production reactors, large particles of fluorite powder are difficult to react quickly with sulfuric acid; 2. In the process of using some existing anhydrous hydrogen fluoride production reactors, it is difficult to efficiently clean the gypsum produced on the surface of fluorite powder particles. To achieve the above purpose, the present invention provides the following technical solutions: an efficient pre-reactor for anhydrous hydrogen fluoride, comprising: A reaction tank, wherein a transmission motor is fixedly connected to the bottom of the reaction tank, and a transmission rod is fixedly connected to the rotating end of the transmission motor through the reaction tank, the transmission rod is rotatably connected between the top and the bottom of the reaction tank, and a cross-shaped stirring blade for mixing is fixedly sleeved on the lower part of the transmission rod, and the side wall of the cross-shaped stirring blade overlaps the inner wall of the reaction tank; Also includes: A support ring, the inner ring of which is vertically slidably connected to the surface of the transmission rod, a filtering and crushing mechanism is movably connected between the surface of the support ring and the surface of the cross-shaped stirring blade, a pull rod is vertically inserted through the top of the reaction tank, and two pull rods are provided, the lower parts of the two pull rods are symmetrically and movably connected to the top of the filtering and crushing mechanism, and the filter crushing mechanism is spread out around and the filtered reactants are crushed by the movement of the pull rods; The top of the reaction tank is rotatably connected to an adjusting cylinder, and a guide groove is provided on the outer wall of the adjusting cylinder. The upper parts of the two pull rods are slidably connected to the inside of the guide groove. A transmission mechanism that cooperates with the adjusting cylinder is movably connected between the top of the transmission rod and the top surface of the reaction tank. The transmission mechanism cooperates with the pull rod to carry the filtering and crushing mechanism to reciprocate in stages inside the reaction tank.

[0005] Preferably, the filtering and crushing mechanism comprises an L-shaped guide rod, wherein four L-shaped guide rods are provided, and the four L-shaped guide rods are fixedly connected to the top of the support ring at equal intervals along the circumference, and the upper part of the transmission rod is movably sleeved with an adjustment ring that matches the support ring, and the outer ring of the adjustment ring is provided with arc grooves all around, and the four arc grooves correspond to the four L-shaped guide rods one by one, and the upper part of the L-shaped guide rod is slidably connected to the inside of the corresponding arc groove, and the bottom of the adjustment ring is fixedly connected with damping telescopic rods all around, and the bottom of the damping telescopic rods overlaps the top of the support ring; The top of the adjusting ring is movably connected to the bottom of the two pull rods, the upper part of the outer ring of the adjusting ring is hinged with four arc-shaped push plates at equal distances along the circumference, the outer ring of the supporting ring is fixedly connected with four connecting plates at equal distances along the circumference, the four connecting plates correspond to the four sides of the cross-shaped stirring blades one by one, and sliding grooves are provided on both sides of the connecting plates; A filter sleeve is movably connected between two adjacent connecting plates, and the side wall of the filter sleeve overlaps the blade position of the cross-shaped stirring blade. The opposite sides of the four filter sleeves are fixedly connected with spring telescopic rods, and the four spring telescopic rods correspond to the four arc-shaped push plates one by one. The top of the spring telescopic rod is rotatably connected to the end of the corresponding arc-shaped push plate. Grooves are provided on both sides of the filter sleeve, and an arc-shaped slide plate is slidably connected inside the groove, and nine spring pressure rods are equidistantly distributed on the surface of the arc-shaped slide plate, and filter plates matching the grooves are fixedly connected between the movable ends of the nine spring pressure rods, and a sliding pin is fixedly connected to the side wall of the upper part of the arc-shaped slide plate, and the sliding pin is slidably connected inside the sliding groove of the side wall of the corresponding connecting plate.

[0006] Preferably, a connecting bearing is fixedly connected to the top of the adjusting ring, and an outer ring of the connecting bearing is fixedly connected to the bottoms of the two pull rods.

[0007] Preferably, four inclined guide plates are fixedly connected to the bottom of the cross-shaped stirring blade at equal intervals along the circumference, and the four inclined guide plates correspond to the four filter sleeves one by one.

[0008] Preferably, the inner wall of the groove is set as an inclined surface, the side end of the filter plate is provided with a chamfer matched with the inclined surface, and the filter sleeve, the arc-shaped slide plate and the filter plate are all set as metal mesh filter materials.

[0009] Preferably, the transmission mechanism comprises a half gear, the half gear is fixedly sleeved on the top of the transmission rod, the top of the reaction tank is rotatably connected with a circular gear, the side wall of the circular gear meshes with the side wall of the half gear, the top of the reaction tank is rotatably connected with a gear ring, the inner ring of the gear ring meshes with the side wall of the circular gear, and the outer ring of the gear ring is fixedly connected with a shifting sleeve, the inner wall of the shifting sleeve is fixedly connected with a compression spring, one end of the compression spring is fixedly connected with a shifting block, and the lower part of the inner wall of the adjusting cylinder is symmetrically fixedly connected with a stopper matched with the shifting block; A reset pin is fixedly connected to the bottom of the shift block, and a wedge block matched with the reset pin is fixedly connected to the top of the reaction tank.

[0010] Preferably, a strip groove is formed at the bottom of the pull sleeve, and the reset pin is slidably connected inside the strip groove.

[0011] Preferably, a slag discharge valve is fixedly connected to the bottom of the reaction tank, and a feed valve is fixedly connected to the top of the reaction tank.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, through the coordinated use of components such as the transmission rod, the filtering and crushing mechanism and the transmission mechanism, when the transmission rod rotates with the cross-shaped stirring blades, the transmission mechanism and the filtering and crushing mechanism cooperate to make the filter plate extend from the side wall of the filter sleeve and move toward the inner wall of the reaction tank, so that the filtered large-particle reactants are pressed against the inner wall of the reaction tank. At the same time, the filter sleeve rotates synchronously with the cross-shaped stirring blades, so that the large-particle reactants and the inner wall of the reaction tank are rubbed and crushed, thereby improving the reaction effect of fluorite powder.

[0013] In the present invention, by using the reaction tank, filter plate, filter sleeve and other components in coordination, when the filter plate and the filter sleeve cooperate to press the large-particle reactants against the inner wall of the reaction tank for friction, the gypsum produced on the surface of the reactants can be scraped off when the crushed reactants pass through the filter sleeve and the filter plate, thereby further improving the reaction effect of the fluorite powder.

[0014] In the present invention, by using the reaction tank, support ring, transmission mechanism and other components in coordination, the filter sleeve and the filter plate can be cyclically moved down from the top of the reaction tank, unfolded, and then raised and retracted, thereby forming a reciprocating operation to process large-particle reactants and effectively improve the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view of the position of the reaction tank and the regulating cylinder of the present invention; Figure 2 It is a side sectional view of the reaction tank and the position of the cross-shaped stirring blade of the present invention; Figure 3 It is a side view of the position of the support ring and the adjustment ring of the present invention; Figure 4 It is a side cross-sectional view of a local position of the filter sleeve and the connecting plate of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at center A; Figure 6 It is a side view of the local position of the adjustment ring and the damping telescopic rod of the present invention; Figure 7 It is a side sectional view of the local position of the adjusting cylinder and the gear ring of the present invention; Figure 8 It is a top view of the partial position of the half gear and the circular gear of the present invention; Fig. 9 It is a side sectional view of the local position of the spring pressure rod and the filter plate of the present invention; Fig.10 It is a side view of the sleeve and the partial position of the pull-out of the present invention; Fig.11 It is a side cross-sectional view of the position of the support ring and the transmission rod of the present invention; Fig.12 It is a side view of the local position of the filter sleeve and the cross-shaped stirring blade of the present invention.

[0016] In the figure: 1, reaction tank; 2, transmission motor; 3, transmission rod; 4, cross-shaped stirring blade; 5, support ring; 6, filtering and crushing mechanism; 601, L-shaped guide rod; 602, adjusting ring; 603, arc groove; 604, damping telescopic rod; 605, arc-shaped push plate; 606, slide groove; 607, filter sleeve; 608, spring telescopic rod; 609, groove; 610, arc-shaped slide plate; 611, spring pressure rod; 612, filter plate; 613, sliding pin; 614, connecting plate; 7, pull rod; 8, adjusting cylinder; 9, guide groove; 10, transmission mechanism; 101, half gear; 102, circular gear; 103, gear ring; 104, pull sleeve; 105, compression spring; 106, pull block; 107, stop block; 108, reset pin; 109, wedge block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 12 The present invention provides a technical solution: a high-efficiency pre-reactor for anhydrous hydrogen fluoride, comprising: A reaction tank 1, the bottom of which is fixedly connected with a transmission motor 2, and the rotating end of the transmission motor 2 passes through the reaction tank 1 and is fixedly connected with a transmission rod 3, the transmission rod 3 is rotatably connected between the top and the bottom of the reaction tank 1, and the lower part of the transmission rod 3 is fixedly sleeved with a cross-shaped stirring blade 4 for mixing, and the side wall of the cross-shaped stirring blade 4 overlaps the inner wall of the reaction tank 1. It should be noted that the four blades of the cross-shaped stirring blade 4 isolate the interior of the reaction tank 1 into four chambers, and when the cross-shaped stirring blade 4 rotates with the transmission rod 3, the reactants are transported to the interior of the reaction tank 1, so that the reactants are evenly dispersed inside the four chambers.

[0019] Also includes: The inner ring of the support ring 5 is vertically slidably connected to the surface of the transmission rod 3, and a filtering and crushing mechanism 6 is movably connected between the surface of the support ring 5 and the surface of the cross-shaped stirring blade 4. A pull rod 7 is vertically inserted at the top of the reaction tank 1, and the pull rod 7 is set to two. The lower parts of the two pull rods 7 are symmetrically movably connected to the top of the filtering and crushing mechanism 6. Through the movement of the pull rod 7, the filtering and crushing mechanism 6 is unfolded around and the filtered reactants are crushed. It should be noted that: the top of the reaction tank 1 is symmetrically provided with perforations, and the pull rod 7 is movably inserted inside the perforations. The inner wall of the perforations is fixedly connected with a sealing ring that matches the pull rod 7. When the pull rod 7 moves up and down at the top of the reaction tank 1, the sealing of the inside of the reaction tank 1 is ensured by the sealing ring; the inner ring of the support ring 5 is provided with a positioning groove, and a positioning bar is fixedly connected to the upper part of the transmission rod 3. The support ring 5 is slidably connected to the positioning bar through the positioning groove.

[0020] The top of the reaction tank 1 is rotatably connected with an adjustment cylinder 8, and a guide groove 9 is provided on the outer wall of the adjustment cylinder 8. The upper parts of the two pull rods 7 are slidably connected inside the guide groove 9. A transmission mechanism 10 that matches the adjustment cylinder 8 is movably connected between the top of the transmission rod 3 and the top surface of the reaction tank 1. The transmission mechanism 10 cooperates with the pull rod 7 to carry the filtering and crushing mechanism 6 to move back and forth in stages inside the reaction tank 1. It should be noted that a support bearing is fixedly connected between the bottom of the adjustment cylinder 8 and the top of the reaction tank 1 to ensure that the adjustment cylinder 8 rotates stably on the top of the reaction tank 1, and a magnetic block is fixedly connected between the top of the reaction tank 1 and the outer wall of the adjustment cylinder 8. When the adjustment cylinder 8 stops rotating, the stability of the adjustment cylinder 8 is ensured under the action of the magnetic block.

[0021] In this embodiment, Figures 1 to 12As shown, the filtering and crushing mechanism 6 includes an L-shaped guide rod 601, and the L-shaped guide rod 601 is set to four. The four L-shaped guide rods 601 are fixedly connected to the top of the support ring 5 at equal intervals along the circumference. The upper part of the transmission rod 3 is movably sleeved with an adjustment ring 602 that matches the support ring 5. The outer ring of the adjustment ring 602 is surrounded by arc grooves 603. The four arc grooves 603 correspond to the four L-shaped guide rods 601 one by one. The upper part of the L-shaped guide rod 601 is slidably connected to the inside of the corresponding arc groove 603. The bottom of the adjustment ring 602 is fixedly connected with damping telescopic rods 604, and the bottom of the damping telescopic rod 604 overlaps the top of the support ring 5. It should be noted that: when the adjustment ring 602 continues to move downward and fits with the top surface of the support ring 5, the arc groove 603 and the L-shaped guide rod 601 cooperate and slide, and the adjustment ring 602 rotates ninety degrees on the top surface of the support ring 5; when the pull rod 7 brings the adjustment ring 602 and the support ring 5 up, the damping telescopic rod 604 brings the adjustment ring 602 to move slowly and separates from the fitted support ring 5, so that the filter sleeve 607 on the support ring 5 rises inside the reaction tank 1, and the adjustment ring 602 gradually completes the reset rotation.

[0022] The top of the adjusting ring 602 is movably connected to the bottom of the two pull rods 7, and the upper part of the outer ring of the adjusting ring 602 is hinged with four arc-shaped push plates 605 at equal intervals along the circumference. The outer ring of the supporting ring 5 is fixedly connected with four connecting plates 614 at equal intervals along the circumference. The four connecting plates 614 correspond to the four sides of the cross-shaped stirring blade 4 one by one, and both sides of the connecting plate 614 are provided with a slide groove 606. It should be noted that: the end of the arc-shaped push plate 605 close to the adjusting ring 602 is rotatably connected with a connecting pin, and the top of the connecting pin is rotatably connected with an arc-shaped pad. The side wall of the arc-shaped pad is fixedly connected to the outer wall of the adjusting ring 602. The arc-shaped pad is set to avoid interference between the connecting pin and the L-shaped guide rod 601 during the rotation of the adjusting ring 602; the connecting plate is set above the cross-shaped stirring blade 4, and the inner bottom surface of the slide groove 606 of the side wall of the connecting plate is provided with a slag discharge hole to avoid blockage inside the slide groove 606.

[0023] A filter sleeve 607 is movably connected between two adjacent connecting plates 614, and the side wall of the filter sleeve 607 overlaps the blade position of the cross-shaped stirring blade 4. The opposite sides of the four filter sleeves 607 are fixedly connected with spring telescopic rods 608, and the four spring telescopic rods 608 correspond to the four arc-shaped push plates 605 one by one. The top of the spring telescopic rod 608 is rotatably connected to the end of the corresponding arc-shaped push plate 605. Grooves 609 are provided on both sides of the filter sleeve 607, and an arc-shaped slide plate 610 is slidably connected inside the groove 609, and nine spring pressure rods 611 are equidistantly distributed on the surface of the arc-shaped slide plate 610, and a filter plate 612 matching the groove 609 is fixedly connected between the movable ends of the nine spring pressure rods 611, and a sliding pin 613 is fixedly connected to the side wall of the upper part of the arc-shaped slide plate 610, and the sliding pin 613 is slidably connected inside the slide groove 606 of the side wall of the corresponding connecting plate 614. It should be noted that the cross-sections of the slide groove 606 and the slide pin 613 are both set to T-shape. When the support ring 5 rises on the surface of the transmission rod 3, the slide pin 613 cooperates with the slide groove 606 to bring the filter plate 612 and the filter sleeve 607 up synchronously; when the adjustment ring 602 and the support ring 5 are in a separated state, the telescopic distance of the spring telescopic rod 608 is the same as the distance from the bottom of the adjustment ring 602 to the top of the support ring 5. When the support ring 5 moves down to the extreme position with the filter sleeve 607, the spring telescopic rod 608 can shrink during the process of the adjustment ring 602 moving toward the top of the support ring 5 to avoid interference.

[0024] In this embodiment, Figures 1 to 12 As shown, the top of the adjusting ring 602 is fixedly connected with a connecting bearing, and the outer ring of the connecting bearing is fixedly connected to the bottom of the two pull rods 7. It should be noted that: through the setting of the connecting bearing, when the adjusting ring 602 rotates with the support ring 5 and the transmission rod 3, it will not rotate with the pull rod 7 to avoid interference.

[0025] In this embodiment, Figures 1 to 12 As shown, the bottom of the four cross-shaped stirring blades are fixedly connected with four inclined guide plates at equal intervals along the circumference, and the four inclined guide plates correspond to the four filter sleeves 607 one by one. It should be noted that: when the filter sleeve 607 is rising at the side wall position of the cross-shaped stirring blade 4, under the guidance of the inclined guide plate, the large particles of reactants deposited at the bottom of the reaction tank 1 will slide along the inclined guide plate to the position after the filter sleeve 607 is reset. At this time, the reset filter sleeve 607 can squeeze the large-particle reactants, avoiding the large particles of reactants accumulating at the axis position of the cross-shaped stirring blade 4 and being unable to effectively react with sulfuric acid, and the bottom of the filter sleeve 607 can be set to a serrated shape to improve the extrusion and crushing effect.

[0026] In this embodiment, Figures 1 to 12As shown, the inner wall of the groove 609 is set as an inclined surface, and the side end of the filter plate 612 is provided with a chamfer matched with the inclined surface. The filter sleeve 607, the arc-shaped slide plate 610 and the filter plate 612 are all set as metal mesh filter materials. It should be noted that: the metal mesh is corrosion-resistant material, and when the filter sleeve 607 and the filter plate 612 press the filtered large-particle reactants against the inner wall of the reaction tank 1 and rotate with the transmission rod 3, friction is formed between the reactants and the inner wall of the reaction tank 1, and the reactants are crushed. At the same time, the crushed reactants will scrape off the gypsum on the surface when passing through the filter sleeve 607 and the filter plate 612, thereby improving the reaction efficiency.

[0027] In this embodiment, Figures 1 to 12 As shown, the transmission mechanism 10 includes a half gear 101, which is fixedly sleeved on the top of the transmission rod 3, and a circular gear 102 is rotatably connected to the top of the reaction tank 1. The side wall of the circular gear 102 meshes with the side wall of the half gear 101, and a gear ring 103 is rotatably connected to the top of the reaction tank 1. The inner ring of the gear ring 103 meshes with the side wall of the circular gear 102, and the outer ring of the gear ring 103 is fixedly connected to a shifting sleeve 104, and the inner wall of the shifting sleeve 104 is fixedly connected to a compression spring 105, and one end of the compression spring 105 is fixedly connected to a shifting block 106, and a stopper 107 matching the shifting block 106 is symmetrically fixedly connected to the lower part of the inner wall of the adjusting cylinder 8. It should be noted that: the half gear and the circular gear are arranged on the inner ring of the gear ring. When the transmission rod brings the half gear to engage with the circular gear in stages, the circular gear can bring the gear ring to slowly rotate on the top of the reaction tank; a one-way bearing is fixedly connected between the bottom of the gear ring 103 and the top surface of the reaction tank 1, so that the gear ring 103 can only rotate in one direction.

[0028] The bottom of the shift block 106 is fixedly connected with a reset pin 108, and the top of the reaction tank 1 is fixedly connected with a wedge block 109 that matches the reset pin 108. It should be noted that when the gear ring 103 rotates with the shift block 106, the shift block 106 will contact the block 107 on the inner wall of the adjustment tube 8, so that the adjustment tube 8 rotates accordingly. When the shift block 106 rotates to the position of the wedge block 109, the wedge block 109 and the reset pin 108 slide in cooperation, so that the shift block 106 is released from the overlap with the adjacent block 107, and the adjustment tube 8 rotates 180 degrees along with the gear ring 103.

[0029] In this embodiment, Figures 1 to 12 As shown, a strip groove is provided at the bottom of the shifting sleeve 104, and the reset pin 108 is slidably connected inside the strip groove. It should be noted that when the shifting sleeve 104 rotates to the position of the wedge block 109 with the shifting block 106 and the reset pin 108, the wedge block 109 and the reset pin 108 slide in cooperation, so that the reset pin 108 slides along the track of the strip groove with the shifting block 106, and at this time, the shifting block 106 is released from contact with the stopper 107, so that the adjusting cylinder 8 stops rotating.

[0030] In this embodiment, Figures 1 to 12 As shown, a slag discharge valve is fixedly connected to the bottom of the reaction tank 1, and a feed valve is fixedly connected to the top of the reaction tank 1.

[0031] The use method and advantages of the present invention: The anhydrous hydrogen fluoride uses a high-efficiency pre-reactor, and the working process is as follows: like Figure 1 , Figure 2 and Figure 3 As shown, when in use, first start the transmission motor 2 to rotate the transmission rod 3 and the cross-shaped stirring blade 4, then add fluorite powder and sulfuric acid into the reaction tank 1 to react and produce hydrogen fluoride. During this process, the half gear 101 at the top of the transmission rod 3 will be meshed with the circular gear 102 in stages, so that the circular gear 102 and the gear ring 103 slowly rotate on the top of the reaction tank 1. When the shifting sleeve 104 at the outer ring position of the gear ring 103 rotates with the shifting block 106 to the surface of the stopper 107 at the inner ring position of the adjustment cylinder 8, the shifting block 106 is rotated to the surface of the stopper 107 at the inner ring position of the adjustment cylinder 8. 6 brings the stopper 107 and the regulating cylinder 8 to rotate synchronously, and when the shifting block 106 rotates to the position of the wedge block 109 at the top of the reaction tank 1, the reset pin 108 at the bottom of the shifting block 106 cooperates with the surface of the wedge block 109 to slide, so that the shifting block 106 translates into the inside of the shifting sleeve 104 and releases the contact with the adjacent stopper 107. At this time, the shifting block 106 cooperates with the stopper 107 to bring the regulating cylinder 8 to rotate 180 degrees, so that the regulating cylinder 8 can periodically rotate 180 degrees at the top of the reaction tank 1 during the operation of the transmission rod 3; When the adjusting cylinder 8 rotates, the two pull rods 7 on the top of the reaction tank 1 will move along the track of the guide groove 9 at the outer ring position of the adjusting cylinder 8. Every time the adjusting cylinder 8 rotates 180 degrees, the guide groove 9 and the pull rod 7 cooperate in sliding, so that the pull rod 7 moves back and forth from top to bottom and then from bottom to top on the top of the reaction tank 1; When the pull rod 7 moves downward with the movable adjustment ring 602, the adjustment ring 602 will move downward with the support ring 5 and the four filter sleeves 607 synchronously, so that the four filter sleeves 607 are respectively inserted between the four blades of the cross-shaped stirring blade 4. When the support ring 5 moves downward to the limit position, the support ring 5 moves downward to the inner bottom surface of the reaction tank 1 with the filter sleeves 607 through the connecting plate 614. At this time, when the pull rod 7 continues to move downward with the adjustment ring 602, the damping telescopic rod 604 begins to compress, and the arc groove 603 on the outer ring of the adjustment ring 602 cooperates with the L-shaped guide rod 601 fixedly connected to the top of the support ring 5 to slide, so that the adjustment ring 602 rotates ninety degrees on the top surface of the support ring 5. During the rotation of the adjusting ring 602, the adjusting ring 602 brings the hinged arc-shaped push plate 605 to press the filter sleeve 607 to move, so that the filter sleeve 607 moves toward the inner wall of the reaction tank 1. At this time, the filter plate 612 is restricted by the connecting plate 614 and gradually extends from the inside of the filter sleeve 607 as the filter sleeve 607 moves, so that the filter sleeve 607 and the filter plate 612 cooperate to filter the reactants with large particle sizes inside the reaction tank 1. When the filter sleeve 607 moves to the limit position with the filter plate 612, the spring pressure rod 611 on the surface of the arc-shaped slide plate 610 presses the filter plate 612 toward the inner wall of the reaction tank 1. The filter plate 612 moves in a direction such that the chamfer of the side end of the filter plate 612 matches the inclined surface of the inner wall of the groove 609. At this time, the filter plate 612 is flush with the surface of the filter sleeve 607, and the adjustment ring 602 also moves down to the limit position. During the synchronous rotation of the filter plate 612 and the filter sleeve 607 along with the transmission rod 3 and the cross-shaped stirring blade 4, the large-particle reactants filtered are pressed against the inner wall of the reaction tank 1 for friction, so that the reactants can react quickly after being crushed. At the same time, the crushed reactants can scrape off the gypsum on the surface during the process of passing through the filter sleeve 607 and the filter plate 612, further improving the reaction effect. When the pull rod 7 is rising with the adjusting ring 602, the adjusting ring 602 is rising synchronously with the supporting ring 5 and the filter sleeve 607 through the L-shaped guide rod 601. During this process, the damping spring slowly recovers elastically and cooperates with the arc groove 603 through the L-shaped guide rod 601, so that the adjusting ring 602 is reversed at the top of the supporting ring 5. At this time, the adjusting ring 602 pulls the arc push plate 605 to reset and rotate, so that the filter sleeve 607 and the filter plate 612 are reset and moved. When the pull rod 7 moves down again, the four filter sleeves 607 are unfolded again, so that large-particle reactants are processed in this reciprocating cycle to ensure that the large-particle reactants inside the reaction tank 1 can react quickly with sulfuric acid.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An efficient pre-reactor for anhydrous hydrogen fluoride, comprising: A reaction tank (1), wherein a transmission motor (2) is fixedly connected to the bottom of the reaction tank (1), and a rotating end of the transmission motor (2) passes through the reaction tank (1) and is fixedly connected to a transmission rod (3), the transmission rod (3) is rotatably connected between the top and the bottom of the reaction tank (1), and a cross-shaped stirring blade (4) for mixing is fixedly sleeved on the lower part of the transmission rod (3), and the side wall of the cross-shaped stirring blade (4) overlaps the inner wall of the reaction tank (1); It is characterized by further comprising: A support ring (5), the inner ring of which is vertically slidably connected to the surface of the transmission rod (3), a filtering and crushing mechanism (6) is movably connected between the surface of the support ring (5) and the surface of the cross-shaped stirring blade (4), a pull rod (7) is vertically inserted through the top of the reaction tank (1), and the pull rods (7) are provided in two numbers, the lower parts of the two pull rods (7) are symmetrically movably connected to the top of the filtering and crushing mechanism (6), and the movement of the pull rods (7) causes the filtering and crushing mechanism (6) to be spread out around and crush the filtered reactants; The top of the reaction tank (1) is rotatably connected to an adjusting cylinder (8), and a guide groove (9) is provided on the outer wall of the adjusting cylinder (8). The upper parts of the two pull rods (7) are slidably connected inside the guide groove (9). A transmission mechanism (10) that cooperates with the adjusting cylinder (8) is movably connected between the top of the transmission rod (3) and the top surface of the reaction tank (1). The transmission mechanism (10) cooperates with the pull rod (7) to carry the filtering and crushing mechanism (6) to move back and forth in stages inside the reaction tank (1).

2. The high-efficiency pre-reactor for anhydrous hydrogen fluoride according to claim 1, characterized in that: The filtering and crushing mechanism (6) comprises an L-shaped guide rod (601), wherein the number of the L-shaped guide rods (601) is four, and the four L-shaped guide rods (601) are fixedly connected to the top of the support ring (5) at equal intervals along the circumference; the upper part of the transmission rod (3) is movably sleeved with an adjustment ring (602) that matches the support ring (5); the outer ring of the adjustment ring (602) is provided with arc grooves (603) around its periphery, and the four arc grooves (603) correspond to the four L-shaped guide rods (601) one by one; the upper part of the L-shaped guide rod (601) is slidably connected to the inside of the corresponding arc groove (603); the bottom of the adjustment ring (602) is fixedly connected with damping telescopic rods (604) around its periphery, and the bottom of the damping telescopic rods (604) overlaps the top of the support ring (5); The top of the adjustment ring (602) is movably connected to the bottoms of the two pull rods (7); the upper part of the outer ring of the adjustment ring (602) is hinged with four arc-shaped push plates (605) at equal intervals along the circumference; the outer ring of the support ring (5) is fixedly connected with four connecting plates (614) at equal intervals along the circumference; the four connecting plates (614) correspond to the four sides of the cross-shaped stirring blade (4) one by one; and sliding grooves (606) are provided on both sides of the connecting plates (614); A filter sleeve (607) is movably connected between two adjacent connecting plates (614), and the side wall of the filter sleeve (607) overlaps the blade position of the cross-shaped stirring blade (4). The four filter sleeves (607) are fixedly connected to the opposite sides with spring telescopic rods (608). The four spring telescopic rods (608) correspond to the four arc-shaped push plates (605) one by one. The top of the spring telescopic rod (608) is rotatably connected to the end of the corresponding arc-shaped push plate (605). Both sides of the filter sleeve (607) are A groove (609) is provided, the interior of the groove (609) is slidably connected to an arc-shaped slide plate (610), and nine spring pressure rods (611) are evenly distributed on the surface of the arc-shaped slide plate (610), and a filter plate (612) matching the groove (609) is fixedly connected between the movable ends of the nine spring pressure rods (611), and a sliding pin (613) is fixedly connected to the side wall of the upper part of the arc-shaped slide plate (610), and the sliding pin (613) is slidably connected to the interior of the sliding groove (606) on the side wall of the corresponding connecting plate (614).

3. The high-efficiency pre-reactor for anhydrous hydrogen fluoride according to claim 2, characterized in that: A connecting bearing is fixedly connected to the top of the adjusting ring (602), and the outer ring of the connecting bearing is fixedly connected to the bottoms of the two pull rods (7).

4. The high-efficiency pre-reactor for anhydrous hydrogen fluoride according to claim 3, characterized in that: Four inclined guide plates are fixedly connected to the bottom of the cross-shaped stirring blade (4) at equal intervals along the circumference, and the four inclined guide plates correspond to the four filter sleeves (607) one by one.

5. The high-efficiency pre-reactor for anhydrous hydrogen fluoride according to claim 4, characterized in that: The inner wall of the groove (609) is configured as an inclined surface, the side end of the filter plate (612) is provided with a chamfer that matches the inclined surface, and the filter sleeve (607), the arc-shaped slide plate (610) and the filter plate (612) are all configured as metal mesh filter materials.

6. The high-efficiency pre-reactor for anhydrous hydrogen fluoride according to claim 5, characterized in that: The transmission mechanism (10) comprises a half gear (101), the half gear (101) is fixedly sleeved on the top of the transmission rod (3), the top of the reaction tank (1) is rotatably connected to a circular gear (102), the side wall of the circular gear (102) meshes with the side wall of the half gear (101), the top of the reaction tank (1) is rotatably connected to a gear ring (103), the inner ring of the gear ring (103) meshes with the side wall of the circular gear (102), and the outer ring of the gear ring (103) is fixedly connected to a shifting sleeve (104), the inner wall of the shifting sleeve (104) is fixedly connected to a compression spring (105), one end of the compression spring (105) is fixedly connected to a shifting block (106), and a stopper (107) matching the shifting block (106) is symmetrically fixedly connected to the lower part of the inner wall of the adjustment cylinder (8); A reset pin (108) is fixedly connected to the bottom of the shifting block (106), and a wedge block (109) matching the reset pin (108) is fixedly connected to the top of the reaction tank (1).

7. The high-efficiency pre-reactor for anhydrous hydrogen fluoride according to claim 6, characterized in that: The bottom of the pull sleeve (104) is provided with a strip groove, and the reset pin (108) is slidably connected inside the strip groove.

8. The high-efficiency pre-reactor for anhydrous hydrogen fluoride according to claim 7, characterized in that: The bottom of the reaction tank (1) is fixedly connected with a slag discharge valve, and the top of the reaction tank (1) is fixedly connected with a feed filling valve.

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