Online regeneration equipment and process for decolorizing adsorption activated carbon for lactic acid production

Abstract

The invention relates to the technical field of activated carbon regeneration, and discloses decoloring adsorption activated carbon online regeneration equipment and process for lactic acid production, the decoloring adsorption activated carbon online regeneration equipment comprises a rotary furnace, the left side of the rotary furnace is provided with a feeding tank, the top of the feeding tank is in through connection with a blanking pipe, and the outer wall of the blanking pipe is fixedly connected with a protective shell; according to the invention, when old activated carbon falls above two limiting plates, a limiting rod penetrates through a through hole, so that a rotating shaft I and the limiting plate fixed on the outer wall of the rotating shaft I do not rotate, and the activated carbon drives the two limiting plates to move downwards in a parallel state on the same horizontal plane; when the waste activated carbon is added into the rotary furnace, the two pushing blocks connected to the first rotating shaft are driven to slide downwards, the two pushing blocks respectively extrude the two extruding blocks to move oppositely to extrude the waste activated carbon, and the problem that when the waste activated carbon is added into the rotary furnace, due to the fact that part of the activated carbon is large in particle size, the activated carbon is heated unevenly in the heating process, and the regeneration effect is poor is effectively prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of activated carbon regeneration equipment, in particular to a decolorization and adsorption activated carbon online regeneration equipment for lactic acid production and a process. BACKGROUND

[0002] The core function of the decolorization and adsorption activated carbon online regeneration equipment for lactic acid production is to regenerate the deactivated activated carbon in situ online, restore its adsorption activity by various methods, without disassembling and replacing the activated carbon offline, which can guarantee the continuity of lactic acid production, reduce downtime loss, and also can reuse activated carbon resources, reduce the cost of consumables procurement and waste treatment.

[0003] When in use, in the rotary furnace regeneration process of old activated carbon, due to the large particle size of part of the old activated carbon particles, uneven heating phenomenon is easy to occur in the process of entering the rotary furnace and rotating with the furnace body and receiving heat treatment, which directly leads to incomplete desorption and decomposition of various pollutants adsorbed in the pores of activated carbon, and part of the stubborn pollutants still remain in the deep pores and cannot be effectively removed, which reduces the qualified rate of the regenerated activated carbon as a whole and affects the subsequent use effect of the regenerated product. SUMMARY

[0004] To solve the above technical problems, the present application provides a decolorization and adsorption activated carbon online regeneration equipment for lactic acid production, which comprises a rotary furnace, a feeding chute is arranged on the left side of the rotary furnace, a feeding pipe is connected through the top of the feeding chute, a protective shell is fixedly connected to the outer wall of the feeding pipe, and further comprises: A feeding mechanism is rotationally connected to the inner wall of the feeding pipe. A moving mechanism is slidingly connected to the inner wall of the feeding pipe. A shielding mechanism is rotationally arranged in the feeding pipe. Wherein, the old activated carbon enters the inside of the feeding pipe through the conveying belt, and is introduced into the inside of the feeding chute through the action of the device in the feeding pipe, the feeding chute introduces the old activated carbon into the rotary furnace, the old activated carbon is heated when the rotary furnace is started, the protective gas is introduced into the rotary furnace, the rotary furnace is inclined at a certain angle, and the old activated carbon moves forward when the rotary furnace rotates and is finally discharged from the rotary furnace.

[0005] Preferably, the feeding mechanism comprises: A shaft assembly is provided with two, and the two shaft assemblies are rotationally connected to the inner wall of the feeding pipe. A baffle assembly is provided with two, and the two baffle assemblies are respectively rotationally connected to the outer wall of the shaft assembly. Wherein, the two shaft assemblies are mirror image arranged, and the shaft assembly drives the baffle assembly to move.

[0006] Preferably, the moving mechanism comprises: The limiting assembly is provided with two, both of which are slidingly connected to the inner wall of the blanking pipe; The pushing assembly is provided with two, both of which are slidingly connected to the inner wall of the blanking pipe; Among them, the two limiting assemblies are mirror image arranged, and the two pushing assemblies are mirror image arranged.

[0007] Preferably, the shielding mechanism comprises: The shutter assembly is provided with two, both of which are rotatably connected to the inner wall of the blanking pipe; The connecting rod assembly is provided with two, both of which are arranged on the outer wall of the blanking pipe; Among them, the two shutter assemblies are mirror image arranged, and the two connecting rod assemblies are mirror image arranged, and the two connecting rod assemblies drive the two shutter assemblies respectively.

[0008] Preferably, the shaft assembly comprises a rotating shaft I rotatably connected to the inner wall of the blanking pipe, the outer wall of the rotating shaft I is provided with two through holes, the outer wall of the blanking pipe is fixedly connected with two springs I, the inner wall of the blanking pipe is fixedly connected with two limit rods, and the side away from the blanking pipe of the two springs I is fixedly connected with the outer wall of the rotating shaft I; Among them, the two limit rods are matched with the two through holes respectively, the two springs I are sleeved on the outer wall of the two limit rods respectively, and the initial state of the two springs I is free state.

[0009] Preferably, the baffle assembly comprises a limiting plate fixedly connected to the outer wall of the rotating shaft I, the top of the limiting plate is fixedly connected with a plurality of separation ribs, the outer wall of the rotating shaft I is sleeved with a torsional spring, and the inner wall of the blanking pipe is fixedly connected with a separation plate; Among them, the torsional spring is rotatably connected with the outer wall of the rotating shaft I, the two side extending ends of the torsional spring are in contact with the separation ribs, and the initial state of the torsional spring is free state. The separation plate is close to the feeding groove.

[0010] Preferably, the limiting assembly comprises an extrusion block slidingly connected to the inner wall of the blanking pipe, the outer wall of the extrusion block is fixedly connected with a plurality of springs II, and the side away from the extrusion block of the plurality of springs II is fixedly connected with the blanking pipe; Among them, the spring II has four, and the four springs II are arranged in linear array.

[0011] Preferably, the pushing assembly comprises a pushing block slidingly connected to the inner wall of the blanking pipe, the outer wall of the pushing block is rotatably connected with two connecting rods I, and the two connecting rods I are rotatably connected with the rotating shaft I; Among them, the two connecting rods I are mirror image arranged, and the middle of the pushing block is provided with a hollow slot to provide space for the plurality of springs II.

[0012] Preferably, the shutter assembly comprises a rotating shaft II rotatably connected to the inner wall of the blanking pipe, and the outer wall of the rotating shaft II is fixedly connected with a shielding plate; Two limiting plates are arranged on the outer wall of the rotating shaft two, and the two limiting plates are arranged in a mirror image. The two limiting plates are arranged on the outer wall of the rotating shaft two, and the two limiting plates are arranged in a mirror image. The two limiting plates are arranged on the outer wall of the rotating shaft two, and the two limiting plates are arranged in a mirror image.

[0013] A kind of lactate production decolorization adsorption active carbon online regeneration equipment and process, including following several steps: S1: after installing rotary furnace and feeding groove, connecting feeding groove and rotary furnace, installing other auxiliary devices on the side of rotary furnace far from feeding groove, fixed dropping tube; S2: start equipment;Start rotary furnace, start conveyor belt, old active carbon carbon passes through conveyor belt, enters the inside of dropping tube, feeding groove passes old active carbon into rotary furnace, after regeneration is completed, finally discharges rotary furnace.

[0014] The present application has the following beneficial effects: (1) when old active carbon enters the dropping tube, the two limiting plates are in the same horizontal plane parallel state, when old active carbon falls above the two limiting plates, due to the limiting rod penetrating the penetration hole, the rotating shaft one and the limiting plate fixed on the outer wall of the rotating shaft one do not rotate, at this time, the old active carbon will accumulate more and more above the two limiting plates, the weight of old active carbon drives the two limiting plates to move downward in the same horizontal plane parallel state, at this time, the rotating shaft one slides downward due to the cooperation of the limiting rod and the penetration hole, and the spring one is stretched, when the rotating shaft one slides downward, the two pushing blocks connected to the rotating shaft one slide downward, due to the wedge shape of the pushing block, the two pushing blocks respectively extrude the two extrusion blocks to move towards each other, at this time, the four spring two is compressed, due to the limitation of the pushing block, when the two extrusion blocks move towards each other, at the same time, the upper end of the two extrusion blocks moves at a higher speed than the lower end, as shown in Figure 9 The two limiting plates are arranged on the outer wall of the rotating shaft two, and the two limiting plates are arranged in a mirror image. Figure 11When the shaft one continuously moves downwards, the limiting rod is separated from the through hole, at this time, the old activated carbon above the two limiting plates is pressed, and the two limiting plates rotate around the shaft one respectively, because the middle part of the torsional spring is limited by the pressing block, and the extension part of the torsional spring is limited by the limiting plate, the torsional spring is twisted, and potential energy is accumulated, when the old activated carbon above the two limiting plates is released, the potential energy accumulated by the torsional spring is released, and the two limiting plates rotate around the shaft one respectively, and return to the state that the two limiting plates are parallel to the same horizontal plane, at this time, the limiting rod cannot enter the through hole due to the limitation of the outer wall of the shaft one, so that the limiting plate cannot rise, until the shaft one rotates to the state that the limiting rod can enter the through hole, at this time, the stretched spring one changes from the stretched state to the free state, so as to drive the shaft one to move upwards along the limiting rod, drive the pushing block to move upwards, and the plurality of spring two changes from the stretched state to the free state, and the two pressing blocks move away from each other, by using the above-mentioned components, the problem that the old activated carbon may be unevenly heated during the heating process due to the large particle size of part of the activated carbon when the old activated carbon is added into the rotary furnace, thereby causing poor regeneration effect, is effectively prevented; (2) The shaft one moves up and down, when the shaft one moves downwards, the connecting rod three connected to the outer wall of the shaft one moves downwards, because the length of the connecting rod three is unchanged, the connecting rod two rotates, because the connecting rod two is fixed to the outer wall of the shaft two, when the connecting rod two rotates, the shaft two rotates in the inner wall of the dropping pipe, because the shielding plate is fixedly connected to the outer wall of the shaft two, when the connecting rod two rotates, the shielding plate rotates around the shaft two, at this time, the shielding plate gradually changes from the vertical state to the horizontal state, at this time, the old activated carbon falling into the dropping pipe gradually falls on the shielding plate, when the two limiting plates move downwards to the state that the limiting rod is separated from the through hole, at this time, the two shielding plates completely change into the horizontal state, at this time, the two shielding plates shield the old activated carbon from falling on the limiting plate, when the limiting rod re-enters the through hole, the through hole moves upwards under the drive of the spring one, at this time, the two limiting plates are parallel to the same horizontal plane, and the two shielding plates start to change from the horizontal state to the vertical state, the old activated carbon falling on the shielding plate falls on the two limiting plates, until the mass of the old activated carbon above the two limiting plates can drive the limiting plate to move downwards to overcome the elastic force of the spring one, by using the above-mentioned components, the problem that the continuously falling old activated carbon directly enters the inside of the feeding groove through the dropping pipe when the old activated carbon accumulated above the limiting plate is released is effectively reduced; (3) The application utilizes the moving characteristics of the limiting plate of the above-mentioned equipment, when the old activated carbon above the limiting plate is released, at this time, the limiting plate and the rotating shaft one are subjected to the force of the torsional spring, so that the limiting rod enters the through hole, since the extrusion block is extruded by the pushing block, at this time, the inclined surface of the extrusion block always contacts the outer wall of the limiting plate, when the rotating shaft one moves upward, at this time, the limiting plate always keeps horizontal state and moves upward, at this time, the side of the limiting plate close to the extrusion block always contacts the inclined surface of the extrusion block, when the limiting plate moves upward, the contact position between the limiting plate and the extrusion block moves upward relative to the extrusion block, so that the limiting plate can scrape the inclined surface of the extrusion block, by the application of the above-mentioned assembly, the problem that when the extrusion block extrudes the activated carbon, since the old activated carbon has a certain moisture, the crushed activated carbon adheres to the surface of the extrusion block, so that the limiting plate is affected by the adhered activated carbon and is stuck during movement is effectively prevented; (4) The application utilizes the characteristics that the extrusion block extrudes the activated carbon of the above-mentioned equipment, the top of the two limiting plates is fixedly connected with a plurality of separation ribs, the separation ribs on the two limiting plates are staggered, so that the space above the limiting plate is divided into long strip space from the whole plane, in the process of extruding and crushing, the bottom of the accumulated old activated carbon is divided, and the separation rib improves the strength of the limiting plate, when the old activated carbon falls from the limiting plate, since there is a high distance between the limiting plate and the separation plate, the old activated carbon agglomerated together due to extrusion falls on the separation plate, so as to separate the agglomerated old activated carbon, by the application of the above-mentioned assembly, the problems that the old activated carbon is agglomerated due to the moisture of the activated carbon after being extruded, causing the problem of blocking the feed inlet of the rotary furnace, and the problem of deformation of the limiting plate during the extrusion of the activated carbon are effectively prevented. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a schematic diagram of the overall structure of the application; Figure 3 It is a schematic diagram of the local structure of the application; Figure 4 It is a schematic diagram of the local structure of the application; Figure 3 It is a schematic diagram of the local structure of the application; Figure 5 It is a schematic diagram of the local structure of the application; Figure 6 It is a schematic diagram of the local structure of the application; It is a schematic diagram of the local structure of the application;Figure 7 Schematic view of the moving mechanism of the present application; Figure 8 Schematic view of the moving mechanism of the present application Figure 7 Schematic view of the moving mechanism of the present application Figure 9 Schematic view of the moving mechanism of the present application Figure 10 Schematic view of the moving mechanism of the present application Figure 11 Schematic view of the moving mechanism of the present application Figure 12 Schematic view of the moving mechanism of the present application

[0017] In the drawings, the components represented by each reference numeral are listed as follows: In the drawings: 1, blanking mechanism; 11, rotating shaft assembly; 12, baffle assembly; 13, rotary furnace; 14, feeding chute; 15, blanking pipe; 16, protective shell; 111, rotating shaft one; 112, through hole; 113, spring one; 114, limiting rod; 121, limiting plate; 122, separation rib; 123, torsional spring; 124, separation plate; 2, moving mechanism; 21, limiting assembly; 22, pushing assembly; 211, extrusion block; 212, spring two; 221, pushing block; 222, connecting rod one; 3, shielding mechanism; 31, shielding plate assembly; 32, connecting rod assembly; 311, rotating shaft two; 312, shielding plate; 321, connecting rod two; 322, rotating pin; 323, connecting rod three. DETAILED DESCRIPTION

[0018] 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. 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.

[0019] Embodiment one, please refer to Figure 1 Figure 5 The present application is a kind of online regeneration equipment for decolorizing adsorption activated carbon for lactic acid production, including rotary furnace 13, rotary furnace 13 left side is provided with feeding chute 14, the top of feeding chute 14 is connected with blanking pipe 15 through hole, the outer wall of blanking pipe 15 is fixedly connected with protective shell 16, further including: Blanking mechanism 1, blanking mechanism 1 is rotationally connected at the inner wall of blanking pipe 15; Moving mechanism 2, moving mechanism 2 is slidingly connected at the inner wall of blanking pipe 15; Shielding mechanism 3, shielding mechanism 3 is rotationally arranged in blanking pipe 15; ​The old activated carbon is conveyed into the inside of the feeding pipe 15, and the old activated carbon is conveyed into the inside of the feeding groove 14 through the action of the device in the feeding pipe 15, and the old activated carbon is heated when the rotary furnace 13 is started, and the rotary furnace 13 is inclined at a certain angle, and the old activated carbon moves forward when the rotary furnace 13 rotates, and finally is discharged from the rotary furnace 13. The feeding mechanism 1 comprises: The shaft assembly 11 is provided with two, and the two shaft assemblies 11 are rotationally connected to the inner wall of the feeding pipe 15. The baffle assembly 12 is provided with two, and the two baffle assemblies 12 are respectively rotationally connected to the outer wall of the shaft assembly 11. The two shaft assemblies 11 are mirror image arranged, and the shaft assembly 11 drives the baffle assembly 12 to move.

[0020] The moving mechanism 2 comprises: The limiting assembly 21 is provided with two, and the two limiting assemblies 21 are respectively rotationally connected to the inner wall of the feeding pipe 15. The pushing assembly 22 is provided with two, and the two pushing assemblies 22 are respectively rotationally connected to the inner wall of the feeding pipe 15. The two limiting assemblies 21 are mirror image arranged, and the two pushing assemblies 22 are mirror image arranged.

[0021] The shielding mechanism 3 comprises: The shutter assembly 31 is provided with two, and the two shutter assemblies 31 are respectively rotationally connected to the inner wall of the feeding pipe 15. The connecting rod assembly 32 is provided with two, and the two connecting rod assemblies 32 are respectively arranged on the outer wall of the feeding pipe 15. The two shutter assemblies 31 are mirror image arranged, and the two connecting rod assemblies 32 are mirror image arranged, and the two connecting rod assemblies 32 respectively drive the two shutter assemblies 31.

[0022] In the embodiment two, please refer to Figure 4 - Figure 12 The application is a kind of online regeneration equipment for decolorizing adsorption activated carbon for lactic acid production, and the shaft assembly 11 comprises a rotating shaft one 111 rotationally connected to the inner wall of the feeding pipe 15, two through holes 112 are formed in the outer wall of the rotating shaft one 111, two springs one 113 are fixedly connected to the outer wall of the feeding pipe 15, two limiting rods 114 are fixedly connected to the inner wall of the feeding pipe 15, and the side away from the feeding pipe 15 of the two springs one 113 is fixedly connected to the outer wall of the rotating shaft one 111. Two limiting rods 114 are respectively matched with two through holes 112, two spring Is 113 are respectively sleeved on the outer walls of the two limiting rods 114, and the initial state of the two spring Is 113 is a free state.

[0023] The baffle assembly 12 comprises a limiting plate 121 fixedly connected to the outer wall of the rotating shaft 111, the top of the limiting plate 121 is fixedly connected with a plurality of separation ribs 122, the outer wall of the rotating shaft 111 is sleeved with a torsion spring 123, and the inner wall of the blanking pipe 15 is fixedly connected with a separation plate 124. The torsion spring 123 is rotatably connected to the outer wall of the rotating shaft 111, the two side extending ends of the torsion spring 123 are in contact with the separation ribs 122, and the initial state of the torsion spring 123 is a free state. The separation plate 124 is close to the feeding groove 14. When the old activated carbon enters the blanking pipe 15, the two limiting plates 121 are in a parallel state at the same horizontal plane, and when the old activated carbon falls above the two limiting plates 121, the limiting rod 114 penetrates the through hole 112, so that the rotating shaft 111 and the limiting plate 121 fixedly connected to the outer wall of the rotating shaft 111 do not rotate, at this time, the old activated carbon will be more and more accumulated above the two limiting plates 121, and the weight of the old activated carbon will drive the two limiting plates 121 to move downward in a parallel state at the same horizontal plane, at this time, the rotating shaft 111 slides downward due to the cooperation of the limiting rod 114 and the through hole 112, and the spring I 113 is stretched.

[0024] The limiting assembly 21 comprises an extrusion block 211 slidably connected to the inner wall of the blanking pipe 15, and a plurality of spring 2s 212 are fixedly connected to the outer wall of the extrusion block 211. The plurality of spring 2s 212 are four, and the four spring 2s 212 are arranged in a linear array.

[0025] The pushing assembly 22 comprises a pushing block 221 slidably connected to the inner wall of the blanking pipe 15, and two connecting rods 1 222 are rotatably connected to the outer wall of the pushing block 221. The two connecting rods 1 222 are mirror images, and a plurality of spring 2s 212 are provided with space. When the rotating shaft 111 slides downward, the two pushing blocks 221 connected to the rotating shaft 111 slide downward, and since the pushing block 221 is wedge-shaped, the two pushing blocks 221 respectively extrude the two extrusion blocks 211 to move towards each other, at this time, the four spring 2s 212 are compressed, and since the pushing block 221 is limited, when the two extrusion blocks 211 move towards each other, the upper end of the two extrusion blocks 211 moves at a higher speed than the lower end. Figure 9As shown, the two upper springs 212 are stretched more than the two lower springs 212. At this time, the pressing block 211 and the pushing block 221 are in the following position. Figure 11 In this state, the two extrusion blocks 211 extrude and release the old activated carbon above the limiting plate 121. As the rotating shaft 111 continues to move downward, the limiting rod 114 disengages from the through hole 112. At this time, due to the pressure of the old activated carbon above the two limiting plates 121, the two limiting plates 121 rotate around the two rotating shafts 111 respectively. Because the middle part of the torsion spring 123 is restricted by the extrusion blocks 211, and the extended parts on both sides of the torsion spring 123 are restricted by the limiting plates 121, the torsion spring 123 sleeved on the outer wall of the rotating shaft 111 is twisted, accumulating potential energy. After the old activated carbon above the two limiting plates 121 is released, the potential energy accumulated by the torsion spring 123 is released. The release causes the two limiting plates 121 to rotate around the rotating shaft 111, restoring them to a parallel state on the same horizontal plane. At this time, due to the restriction of the outer wall of the rotating shaft 111, the limiting rod 114 cannot enter the through hole 112, so the limiting plate 121 cannot rise until the rotating shaft 111 rotates to the point where the limiting rod 114 can enter the through hole 112. At this time, the stretched spring 113 changes from the stretched state to the free state, thereby causing the rotating shaft 111 to move upward along the limiting rod 114, causing the pushing block 221 to move upward, and several springs 212 change from the stretched state to the free state. The two pressing blocks 211 move in opposite directions.

[0026] The baffle assembly 31 includes a rotating shaft 311 rotatably connected to the inner wall of the discharge pipe 15, and a baffle 312 is fixedly connected to the outer wall of the rotating shaft 311. Among them, the two sides of the baffle plate 312 are closely attached to the inner wall of the material drop pipe 15, and the two sides of the rotating shaft 311 extend out of the outer wall of the material drop pipe 15. The baffle plate 312 includes two connecting rods 321 fixedly connected to the outer wall of the rotating shaft 311. The inner walls of the two connecting rods 321 are rotatably connected to rotating pins 322 respectively. The outer wall of the rotating shaft 111 is rotatably connected to two connecting rods 323. The inner walls of the two connecting rods 323 are rotatably connected to the outer walls of the two rotating pins 322 respectively. Among them, the two connecting rods 321 are arranged in a mirror image, and the two connecting rods 321 are located outside the two connecting rods 222; When the rotating shaft 1 111 moves downward, the connecting rod 3 323 connected to the outer wall of the rotating shaft 1 111 moves downward at this time, and since the length of the connecting rod 3 323 does not change, the connecting rod 2 321 rotates, and since the connecting rod 2 321 is fixed to the outer wall of the rotating shaft 2 311, when the connecting rod 2 321 rotates, the rotating shaft 2 311 rotates in the inner wall of the blanking pipe 15, and since the shielding plate 312 is fixedly connected to the outer wall of the rotating shaft 2 311, when the connecting rod 2 321 rotates, the shielding plate 312 rotates about the rotating shaft 2 311, at this time, the shielding plate 312 gradually changes from the vertical state to the horizontal state, at this time, the old activated carbon falling into the blanking pipe 15 gradually falls onto the shielding plate 312, when the two limiting plates 121 move downward to the state that the limiting rod 114 is separated from the through hole 112, at this time, the two shielding plates 312 completely change to the horizontal state, at this time, the two shielding plates 312 shield the old activated carbon from falling onto the limiting plate 121, when the limiting rod 114 reenters the through hole 112, the through hole 112 moves upward under the driving of the spring 1 113, at this time, the two limiting plates 121 present the same horizontal plane parallel state, and the two shielding plates 312 begin to change from the horizontal state to the vertical state, the old activated carbon falling onto the shielding plate 312 falls onto the two limiting plates 121, until the mass of the old activated carbon above the two limiting plates 121 can drive the limiting plate 121 to move downward against the elastic force of the spring 1 113.

[0027] A kind of lactate production decolorization adsorption active carbon online regeneration equipment and process, including the following steps: S1: install equipment, after installing rotary furnace 13 and feeding slot 14, connecting feeding slot 14 and rotary furnace 13, installing other auxiliary devices on the side of rotary furnace 13 away from feeding slot 14, and fixing blanking pipe 15; S2: start equipment;Start rotary furnace 13, start conveyor belt, old activated carbon carbon passes through conveyor belt, enters the inside of blanking pipe 15, feeding slot 14 passes old activated carbon into rotary furnace 13, and finally discharges from rotary furnace 13 after regeneration is completed.

[0028] A specific application of the embodiment is: when in use, old activated carbon carbon passes through conveyor belt, enters the inside of blanking pipe 15, old activated carbon enters the inside of feeding slot 14 by the action of the device in blanking pipe 15, feeding slot 14 passes old activated carbon into rotary furnace 13, and old activated carbon is heated when rotary furnace 13 is started, protective gas is introduced into rotary furnace 13, rotary furnace 13 is inclined at a certain angle, old activated carbon moves forward when rotary furnace 13 rotates, and finally discharges from rotary furnace 13; When the old activated carbon enters the dropping tube 15, the two limiting plates 121 are in the same horizontal plane parallel state, and when the old activated carbon falls above the two limiting plates 121, the limiting rod 114 penetrates the through hole 112, so that the rotating shaft one 111 and the limiting plate 121 fixed on the outer wall of the rotating shaft one 111 do not rotate, at this time, the old activated carbon will accumulate more and more above the two limiting plates 121, and the old activated carbon itself weight drives the two limiting plates 121 to keep the same horizontal plane parallel state to move downward, at this time, the rotating shaft one 111 slides downward due to the cooperation of the limiting rod 114 and the through hole 112, and the spring one 113 is stretched, when the rotating shaft one 111 slides downward, the two pushing blocks 221 connected to the rotating shaft one 111 slide downward, because the pushing block 221 is wedge-shaped, the two pushing blocks 221 respectively extrude the two extrusion blocks 211 to move towards each other, at this time, the four spring two 212 are compressed, because the pushing block 221 limits, when the two extrusion blocks 211 move towards each other, the upper end of the two extrusion blocks 211 moves at a higher speed than the lower end, as shown in Figure 9 , the two spring two 212 on the upper side are stretched more than the two spring two 212 on the lower side, at this time, the extrusion block 211 and the pushing block 221 are in the state as shown in Figure 11 , the two extrusion blocks 211 extrude and release the old activated carbon above the limiting plate 121, when the rotating shaft one 111 continues to move downward, the limiting rod 114 will be separated from the through hole 112, at this time, due to the pressure of the old activated carbon above the two limiting plates 121, the two limiting plates 121 respectively rotate around the two rotating shaft one 111, because the middle part of the torsional spring 123 is limited by the extrusion block 211, the extension part of the torsional spring 123 is limited by the limiting plate 121, the torsional spring 123 sleeved on the outer wall of the rotating shaft one 111 is twisted and accumulates potential energy, when the old activated carbon above the two limiting plates 121 is released, the potential energy accumulated by the torsional spring 123 is released, which drives the two limiting plates 121 to rotate around the rotating shaft one 111 respectively, and restores to the state that the two limiting plates 121 are in the same horizontal plane parallel state, at this time, due to the limitation of the outer wall of the rotating shaft one 111, the limiting rod 114 cannot enter the through hole 112, so that the limiting plate 121 cannot rise, until the rotating shaft one 111 rotates to the position that the limiting rod 114 can enter the through hole 112, at this time, the spring one 113 stretched from the stretched state to the free state, thereby driving the rotating shaft one 111 to move upward along the limiting rod 114, driving the pushing block 221 to move upward, and the spring two 212 changes from the stretched state to the free state, the two extrusion blocks 211 move away, which effectively prevents the problem that the old activated carbon may be heated unevenly during the heating process due to the large particle size of part of the activated carbon when the old activated carbon is added into the rotary furnace 13, resulting in poor regeneration effect; Utilizing the characteristic of the vertical movement of the aforementioned rotating shaft 111, when the rotating shaft 111 moves downward, the connecting rod 323, which is rotatably connected to the outer wall of the rotating shaft 111, moves downward along with the rotating shaft 111. Since the length of the connecting rod 323 remains unchanged, it drives the connecting rod 221 to rotate. Since the connecting rod 221 is fixed to the outer wall of the rotating shaft 211, when the connecting rod 221 rotates, the rotating shaft 211 rotates on the inner wall of the discharge pipe 15. Since the baffle plate 312 is fixedly connected to the outer wall of the rotating shaft 211, when the connecting rod 221 rotates, it drives the baffle plate 312 to rotate about the axis of the rotating shaft 211. At this time, the baffle plate 312 gradually changes from a vertical state to a horizontal state. At this time, the old activated carbon falling into the discharge pipe 15 gradually falls onto the baffle plate 312. When the two limiting plates 121 move downward to the point where the limiting rod 114 and the through hole 11 are connected... When the activated carbon is in the detached state, the two baffles 312 are completely horizontal, preventing the old activated carbon from falling onto the limiting plate 121. When the limiting rod 114 re-enters the through hole 112, the through hole 112 moves upward under the action of the spring 113. At this time, the two limiting plates 121 are parallel to each other on the same horizontal plane, and the two baffles 312 begin to change from horizontal to vertical. The old activated carbon that fell on the baffles 312 falls onto the two limiting plates 121 until the mass of the old activated carbon above the two limiting plates 121 can drive the limiting plates 121 to overcome the elastic force of the spring 113 and move downward. This effectively reduces the problem that when the old activated carbon accumulated above the limiting plates is released, the old activated carbon that falls continuously will directly enter the feeding tank 14 through the discharge pipe 15 before being crushed. Utilizing the movement characteristic of the aforementioned equipment's limiting plate 121, when the old activated carbon above the limiting plate 121 is released, the limiting plate 121 and the rotating shaft 111 are subjected to the force of the torsion spring 123, causing the limiting rod 114 to enter the through hole 112. Because the extrusion block 211 is compressed by the pushing block 221, the inclined surface of the extrusion block 211 remains in contact with the outer wall of the limiting plate 121. When the rotating shaft 111 moves upward, the limiting plate 121 remains horizontal and moves upward. At this time, the limiting plate 121 approaches the extrusion block 211. One side of the pressing block 211 is always in contact with the inclined surface of the extrusion block 211. When the limiting plate 121 moves upward, the contact position between the limiting plate 121 and the extrusion block 211 moves upward relative to the extrusion block 211, so that the limiting plate 121 can scrape the inclined surface of the extrusion block 211. This effectively prevents the problem that when the extrusion block 211 extrudes activated carbon, the crushed activated carbon adheres to the surface of the extrusion block 211 due to the presence of a certain amount of moisture in the old activated carbon, causing the limiting plate 121 to be affected and jammed during movement. Utilizing the characteristics of the extrusion block 211 in the above-mentioned equipment for extruding activated carbon, several separating ribs 122 are fixedly connected to the top of the two limiting plates 121. The separating ribs 122 on the two limiting plates 121 are staggered, so that the space above the limiting plates 121 is divided into long strip spaces from the entire plane. During the extrusion and crushing process, the bottom of the accumulated old activated carbon is separated, and the separating ribs 122 increase the strength of the limiting plates 121. When the old activated carbon falls from the limiting plates 121, due to the high distance between the limiting plates 121 and the separating plates 124, the old activated carbon that has been squeezed together falls onto the separating plates 124, thereby separating the agglomerated old activated carbon. This effectively prevents the problem of the old activated carbon being squeezed and agglomerated due to the presence of moisture, which would cause blockage of the feed inlet of the rotary kiln 13, and the problem of the limiting plates 121 deforming during the extrusion of activated carbon.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An online regeneration device for decolorizing and adsorbing activated carbon in lactic acid production, comprising a rotary kiln (13), wherein a feeding trough (14) is provided on the left side of the rotary kiln (13), and a discharge pipe (15) is connected through the top of the feeding trough (14), and a protective shell (16) is fixedly connected to the outer wall of the discharge pipe (15); characterized in that, Also includes: The material feeding mechanism (1) is rotatably connected to the inner wall of the material feeding pipe (15); The moving mechanism (2) is slidably connected to the inner wall of the discharge pipe (15); A shielding mechanism (3) is rotatably disposed inside the discharge pipe (15); The used activated carbon is conveyed into the feed pipe (15) by a conveyor belt. Through the action of the device inside the feed pipe (15), the used activated carbon enters the feed trough (14). The feed trough (14) feeds the used activated carbon into the rotary kiln (13). When the rotary kiln (13) is started, the used activated carbon is heated. Protective gas is introduced into the rotary kiln (13). The rotary kiln (13) is tilted at a certain angle. When the rotary kiln (13) rotates, the used activated carbon moves forward and is finally discharged from the rotary kiln (13).

2. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 1, characterized in that: The material feeding mechanism (1) includes: Two rotating shaft assemblies (11) are provided, and the two rotating shaft assemblies (11) are rotatably connected to the inner wall of the discharge pipe (15); Two baffle assemblies (12) are provided, and the two baffle assemblies (12) are respectively rotatably connected to the outer wall of the rotating shaft assembly (11); Among them, the two rotating shaft assemblies (11) are set in a mirror image, and the rotating shaft assembly (11) drives the baffle assembly (12) to move.

3. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 2, characterized in that: The moving mechanism (2) includes: Two limiting components (21) are provided, and both limiting components (21) are slidably connected to the inner wall of the discharge pipe (15); Two push-pressing components (22) are provided, and both push-pressing components (22) are slidably connected to the inner wall of the discharge pipe (15); Among them, the two limiting components (21) are set in a mirror image and the two pushing components (22) are set in a mirror image.

4. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 3, characterized in that: The shielding mechanism (3) includes: Blind assembly (31), two of the blind assemblies (31) are provided, and both of the blind assemblies (31) are rotatably connected to the inner wall of the discharge pipe (15); Linkage assembly (32), two linkage assemblies (32) are provided, and both linkage assemblies (32) are provided on the outer wall of the discharge pipe (15); Among them, the two baffle assemblies (31) are set in a mirror image, the two linkage assemblies (32) are set in a mirror image, and the two linkage assemblies (32) drive the two baffle assemblies (31) respectively.

5. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 4, characterized in that: The rotating shaft assembly (11) includes a rotating shaft (111) rotatably connected to the inner wall of the discharge tube (15). The outer wall of the rotating shaft (111) has two through holes (112). The outer wall of the discharge tube (15) is fixedly connected to two springs (113). The inner wall of the discharge tube (15) is fixedly connected to two limiting rods (114). The side of the two springs (113) away from the discharge tube (15) is fixedly connected to the outer wall of the rotating shaft (111). Among them, the two limiting rods (114) are respectively matched with the two through holes (112), and the two springs (113) are respectively sleeved on the outer wall of the two limiting rods (114). The initial state of the two springs (113) is free.

6. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 5, characterized in that: The baffle assembly (12) includes a limiting plate (121) fixedly connected to the outer wall of the rotating shaft (111), a plurality of partition ribs (122) fixedly connected to the top of the limiting plate (121), a torsion spring (123) sleeved on the outer wall of the rotating shaft (111), and a separation plate (124) fixedly connected to the inner wall of the discharge pipe (15). Among them, the torsion spring (123) is rotatably connected to the outer wall of the rotating shaft (111), the two protruding ends of the torsion spring (123) are in contact with the separating rib (122), the torsion spring (123) is initially in a free state, and the separating plate (124) is close to the feeding trough (14).

7. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 5, characterized in that: The limiting component (21) includes an extrusion block (211) slidably connected to the inner wall of the discharge tube (15). A plurality of springs (212) are fixedly connected to the outer wall of the extrusion block (211). The side of the plurality of springs (212) away from the extrusion block (211) is fixedly connected to the discharge tube (15). There are four springs (212), and the four springs (212) are arranged in a linear array.

8. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 7, characterized in that: The pushing assembly (22) includes a pushing block (221) slidably connected to the inner wall of the discharge pipe (15). The outer wall of the pushing block (221) is rotatably connected to two connecting rods (222), and the two connecting rods (222) are rotatably connected to the rotating shaft (111). Among them, the two connecting rods (222) are set in a mirror image, and the push block (221) has a slot in the middle to provide space for several springs (212).

9. The online regeneration equipment for decolorizing and adsorbing activated carbon in lactic acid production according to claim 8, characterized in that: The baffle assembly (31) includes a rotating shaft two (311) rotatably connected to the inner wall of the discharge pipe (15), and a baffle plate (312) is fixedly connected to the outer wall of the rotating shaft two (311). Among them, the baffle plate (312) is closely attached to the inner wall of the discharge pipe (15) on both sides, and the rotating shaft (311) extends out of the outer wall of the discharge pipe (15) on both sides; The baffle plate (312) includes two connecting rods (321) fixedly connected to the outer wall of the rotating shaft (311). The inner walls of the two connecting rods (321) are respectively rotatably connected to rotating pins (322). The outer wall of the rotating shaft (111) is rotatably connected to two connecting rods (323). The inner walls of the two connecting rods (323) are respectively rotatably connected to the outer walls of the two rotating pins (322). Among them, the two connecting rods (321) are set in a mirror image, and the two connecting rods (321) are located outside the two connecting rods (222).

10. An online regeneration device and process for decolorizing and adsorbing activated carbon in lactic acid production, employing the apparatus of the online regeneration device for decolorizing and adsorbing activated carbon in lactic acid production as described in claim 9, characterized in that: Includes the following steps, S1: Install the equipment. After installing the rotary kiln (13) and the feeding trough (14), connect the feeding trough (14) and the rotary kiln (13). Install other auxiliary devices on the side of the rotary kiln (13) away from the feeding trough (14) and fix the discharge pipe (15). S2: Start the equipment; start the rotary kiln (13), start the conveyor belt, the old activated carbon enters the inside of the feed pipe (15) through the conveyor belt, the feed trough (14) feeds the old activated carbon into the rotary kiln (13), after regeneration is completed, it is finally discharged from the rotary kiln (13).

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