CN212150858U - Feeding device for producing superfine nano calcium carbonate - Google Patents

Abstract

The utility model discloses a feeding device for producing superfine nano calcium carbonate, which relates to the field of calcium carbonate production and aims to solve the problem that the material conveying speed of the existing bucket elevator is slow, and the technical key points of the feeding device comprise a base, a base walking plate, a receiving hopper and a discharge valve, wherein the base walking plate is obliquely arranged above the base, the oblique lower surface of the base walking plate is provided with two walking rail grooves, the walking rail grooves comprise a linear rail groove and an arc rail groove, the two linear rail grooves are arranged on the oblique lower surface of the base walking plate in parallel along the oblique direction of the base walking plate, the two arc rail grooves are arranged at the top end and the bottom end of the oblique lower surface of the base walking plate, the arc rail grooves are smoothly communicated with the end walls of the two arc rail grooves, the receiving hopper is provided with at least two receiving hoppers in a sliding way, the base walking plate is provided with an actuating component for driving the receiving hoppers to slide, and the bottom end of the receiving, the discharge valve is arranged on the discharge pipe. The utility model discloses can realize improving reinforced efficiency to the quick transport of material.

Description

Feeding device for producing superfine nano calcium carbonate

Technical Field

The utility model relates to a calcium carbonate production field, more specifically say, it relates to a feeding device for production of superfine nanometer calcium carbonate.

Background

Calcium carbonate is an important inorganic material and can be used in building materials, food additives, paper making industry and the like. The nano calcium carbonate is also called superfine calcium carbonate, and can be applied to high-grade plastic products, and can improve the rheological property of the plastic master batch and the moldability thereof.

For the preparation of nano calcium carbonate, limestone is usually crushed and calcined to obtain quicklime, then water is added into the quicklime to react the quicklime with the water to produce calcium hydroxide, then carbon dioxide gas is introduced into a suspension of the calcium hydroxide with a certain concentration to carbonize, so that calcium carbonate is obtained after the calcium hydroxide reacts with calcium dioxide, and the calcium carbonate is dried and ground to obtain the nano calcium carbonate with a specified particle size. In the existing processing technology, the limestone raw material needs to be crushed by a crusher, then is conveyed to a bucket elevator, and then is conveyed to a calcining furnace by the bucket elevator for calcining.

However, since the conveying speed of the bucket elevator cannot be too high, otherwise, the operation of the bucket elevator is very unstable, strong vibration is caused, the conveyed materials drop in the conveying process, and the charging efficiency into the calcining furnace is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a feeding device for production of superfine nanometer calcium carbonate can realize improving reinforced efficiency to the quick transport of material.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a feeding device for production of superfine nano calcium carbonate, includes the base, still includes base walking board, receiving hopper and baiting valve, base walking board slope sets up the top at the base, be provided with on the slope lower surface of base walking board and walk the rail groove, it includes sharp rail groove and pitch arc rail groove to walk the rail groove, sharp rail groove has two and sets up the slope lower surface at base walking board side by side along base walking board incline direction, pitch arc rail groove has two and sets up top and bottom at base walking board slope lower surface, pitch arc rail groove sets up with the terminal wall rounding off intercommunication in two pitch arc rail grooves, the receiving hopper has at least two and slides and sets up in walking the rail groove, be provided with the subassembly of ordering about that the drive receiving hopper slided on the base walking board, the bottom of receiving hopper is provided with the discharging pipe, the baiting valve sets up on the discharging pipe.

Through taking above-mentioned technical scheme to the base is walked the board and is the removal base member, under the drive effect of ordering about the subassembly, every receiving hopper all can carry out a closed loop removal at the inslot of walking the rail, and the bottom and the top of walking the board at the base stop simultaneously, thereby the material carries out material replenishment and unloading respectively on two receiving hoppers, and receiving hopper independently removes in walking the rail groove simultaneously, thereby carry out the unloading at a receiving hopper and when reinforced in to the calciner, all the other receiving hoppers can carry out material replenishment or remove, thereby the utility model discloses can realize the quick transport to the material, improve reinforced efficiency.

The utility model discloses a further set up to, order about the subassembly including set up the support groove on walking the relative lateral wall of rail groove, set up on the receiving hopper top and slide the support shoe that sets up in two support grooves, set up the extension board on support shoe top, rotate the gear of ordering about that sets up at the extension board upper surface, set up and be used for the drive to order about gear revolve's a driving motor on the extension board, set up on walking rail groove outside perisporium and with order about gear engagement order about away the tooth and rotate the direction slide bar that sets up on ordering about the gear top and set up the direction spout of being connected with the direction slide bar slides on walking rail groove roof.

By adopting the technical scheme, the supporting slide block slides in the supporting groove, so that the receiving hopper can be relatively supported in the track groove; meanwhile, under the meshing action of the driving gear and the driving walking gear and the guiding action of the guide sliding groove and the guide sliding rod, the receiving hopper can be driven to slide in the rail walking groove.

The utility model discloses a further set up to, extension board upper surface is fixed and is provided with the counter roll, order about the gear sleeve and establish on the perisporium of counter roll, a driving motor passes through a piece setting on the counter roll top, a driving end of a driving motor is provided with the linkage gear, the linkage gear with order about the gear keep away from and order about one side meshing of walking the tooth, it provides the groove of stepping down that supplies a driving motor and linkage gear to pass through on the rail groove lateral wall to walk.

Through adopting above-mentioned technical scheme, drive linkage gear rotates for linkage gear with order about the gear engagement, can drive and order about the gear rotation under the prerequisite that does not influence the gear and order about the meshing of walking the tooth, make order about the gear and order about the tooth and mesh smoothly.

The utility model discloses a further set up to, support the groove and keep away from the setting of supporting slide end wall with notch opposite side cell wall, the one end that the supporting slide stretched into the support groove is provided with the elastic block, the one end that the supporting slide was kept away from to the elastic block is provided with the spin, spin and support groove cell wall roll connection.

Through taking above-mentioned technical scheme, elastic deformation takes place for the elastic block to for supporting the slider provides certain space of sliding in supporting the inslot, thereby can reduce the stress between supporting the slider and the support groove, the spin turns into rolling friction with the friction form between elastic block and the support groove simultaneously, by sliding friction, thereby reduces the frictional force between elastic block and the support groove, improves the smooth and easy nature of receiving the hopper removal.

The utility model discloses a further set up to, the bottom of supporting the slider is provided with the connecting block, the bottom of connecting block is provided with the ball arc groove, be provided with the cable, two on the top feed inlet relative lateral wall of receiving hopper the one end that the receiving hopper was kept away from to the cable is provided with even ball, even the ball laminating rotates and sets up at the ball arc inslot, the ball arc groove is greater than the radius of even ball along the maximum height of vertical direction, is less than the ball footpath of even ball.

Through adopting above-mentioned technical scheme, even the ball is at the rotation of ball arc inslot to can make the receiving hopper can carry out certain rocking in all directions, thereby at the removal in-process of receiving hopper, reduce the stress effect that the receiving hopper gravity caused to base running board.

The utility model is further provided with sealing plates which are respectively arranged on the opposite side walls of the top feed inlet of the material receiving hopper in a sliding way; when the two sealing plates are oppositely buckled, the two sealing plates seal the feed inlet of the receiving hopper; the blanking plate is provided with a balance hole in a penetrating way, and the receiving hopper is provided with an opening and closing piece for driving the two blanking plates to slide.

Through taking above-mentioned technical scheme, remove the in-process that the process and the receiving hopper were reinforced in to the calciner at the receiving hopper, the feed inlet of receiving hopper is sealed to the shrouding to reduce the dust and fly upward, the setting of balancing hole simultaneously makes the inside atmospheric pressure of receiving hopper balanced with external atmospheric pressure, makes the material smoothly via the discharging pipe ejection of compact.

The utility model discloses a further set up to, be provided with the sliding groove on the relative lateral wall of receiving hopper top feed inlet, be provided with the sliding block on the relative lateral wall of shrouding and sliding groove, the sliding block slides with the sliding groove and is connected, the piece of opening and shutting stretches into the pinion rack that opens and shuts of sliding groove one end and sets up the second driving motor that drives the pinion rack that opens and shuts at the sliding block at the opening and shutting gear that sets up on the horizontal cell wall of sliding groove including rotating, two the pinion rack that opens and shuts meshes with the both sides of the pinion rack that opens and shuts along sliding groove width direction respectively.

Through taking above-mentioned technical scheme, the gear that opens and shuts rotates, can make two pinion racks that open and shut simultaneously with the gear engagement that opens and shuts to two pinion racks that open and shut drive two shrouding relative movement through the sliding block, realize opening and shutting to the receiving hopper feed inlet.

The utility model discloses a further set up to, two be provided with the lock pressure pad on the relative lateral wall of shrouding, two the lock pressure pad elasticity butt.

Through adopting above-mentioned technical scheme, when the relative lock of shrouding and closed receiving hopper, the mutual butt of lock pressure pad can reduce the damage of hitting between two shroudings.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model discloses use the base walking board as the removal base member to under the drive effect of order about the subassembly, impel the receiving hopper all can independently carry out a closed loop in the groove of walking a track and remove, thereby when a receiving hopper carries out the unloading, the other receiving hoppers carry out the material and supply or remove, thereby the utility model discloses a plurality of receiving hoppers mutually support, realize the quick transport to the material, improve reinforced efficiency;

2. the utility model discloses a set up the shrouding and open and shut the piece, remove the in-process that the process and receiving hopper feed in to the calciner at the receiving hopper, can seal the feed inlet of receiving hopper to reduce the dust and fly upward.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a structure of a middle hopper in a moving state according to the present invention.

Fig. 3 is a schematic view of a middle track groove structure according to the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a cross-sectional view taken at a-a in fig. 2.

Fig. 6 is a partial sectional view of the structure of the opening member according to the present invention.

Fig. 7 is an enlarged view at B in fig. 6.

Reference numerals: 1. a base; 11. a support; 2. a base walking board; 3. a material receiving hopper; 31. a cable; 32. connecting the ball; 33. connecting blocks; 34. a spherical arc groove; 4. a discharge valve; 41. a discharge pipe; 5. a rail-moving groove; 51. a linear rail groove; 52. an arc track groove; 6. an actuating assembly; 61. a support groove; 62. a support slide block; 621. an elastic block; 622. rolling a ball; 63. a support plate; 631. a fulcrum; 632. supporting a block; 64. driving the gear; 65. a first drive motor; 651. a linkage gear; 652. a yielding groove; 66. driving the running gear; 67. a guide slide bar; 68. a guide chute; 7. closing the plate; 71. opening and closing the piece; 711. a switching gear; 712. a retractable toothed plate; 713. a second drive motor; 72. a sliding groove; 721. a sliding block; 73. buckling the pressure pad; 74. and (4) balancing holes.

Detailed Description

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

Example (b):

the utility model discloses a feeding device for the production of superfine nano calcium carbonate, as shown in figures 1 and 3, comprising a base 1, a base walking plate 2, a material receiving hopper 3 and a material discharging valve 4, wherein the upper surface of the base 1 is provided with a bracket 11, and the base walking plate 2 is obliquely and fixedly arranged at the top end of the bracket 11; the inclined lower surface of the base walking plate 2 is concavely provided with the walking rail grooves 5, the walking rail grooves 5 comprise two linear rail grooves 51 and arc rail grooves 52, the two linear rail grooves 51 are arranged on the inclined lower surface of the base walking plate 2 in parallel along the inclination direction of the base walking plate 2, the two arc rail grooves 52 are arranged at the top end and the bottom end of the inclined lower surface of the base walking plate 2, and the arc rail grooves 52 are communicated with the smooth end walls of the two arc rail grooves 52; in this embodiment, the receiving hoppers 3 have two and mutually independent sliding settings in the track groove 5, the base walking board 2 is further provided with an actuating assembly 6 for driving the receiving hoppers 3 to slide, meanwhile, the bottom ends of the receiving hoppers 3 are provided with a discharging pipe 41, and the discharging valves 4 are arranged on the discharging pipe 41. When the feeding device conveys materials, one receiving hopper 3 supplements the materials at the bottom end of the base walking plate 2, the other base walking plate 2 moves to the top end of the base walking plate 2 under the driving action of the driving component 6, at the moment, the discharging valve 4 on the receiving hopper 3 at the top end of the base walking plate 2 is opened, the materials in the receiving hopper 3 can be added into a corresponding calcining furnace (not shown in the figure), then under the driving action of the driving component 6, the two receiving hoppers 3 move into two linear rail grooves 51 (shown in figure 2) respectively through arc rail grooves 52 at two ends, so that the receiving hopper 3 below moves to the top end of the base walking plate 2 to be supplemented, the receiving hopper 3 which is emptied below moves to the bottom end of the base walking plate 2, so that the working personnel replenishes the materials into the receiving hoppers 3, the two receiving hoppers 3 are mutually matched, and the rapid conveying of the materials is realized, thereby realizing the rapid feeding of the materials into the calcining furnace.

As shown in fig. 4 and 5, the driving assembly 6 includes support grooves 61 concavely arranged on opposite side walls of the track groove 5 near the notch, support sliders 62 arranged at the top ends of the receiving hoppers 3 and respectively arranged in the two support grooves 61 in a sliding manner, a support plate 63 fixedly arranged at the top ends of the support sliders 62, a driving gear 64 rotatably arranged on the upper surface of the support plate 63, a first driving motor 65 arranged on the support plate 63 and used for driving the driving gear 64 to rotate, and driving teeth 66 arranged on the outer peripheral wall of the track groove 5 and meshed with the driving gear 64, wherein the support sliders 62 slide in the support grooves 61, so that the receiving hoppers 3 are basically pulled and supported; then the first driving motor 65 rotates the driving gear 64, so that the driving gear 64 is meshed with the driving teeth 66, that is, the driving gear 64 moves on the driving teeth 66, and the receiving hopper 3 is driven to move along the track groove 5, in this embodiment, the driving assembly 6 further includes a guide slide bar 67 rotatably disposed at the top end of the driving gear 64 and a guide slide groove 68 disposed on the top wall of the track groove 5 and slidably connected with the guide slide bar 67, and when the receiving hopper 3 moves along the track groove 5, the guide slide bar 67 slides in the guide slide groove 68, so that the moving end of the receiving hopper 3 can slide along the extending direction of the track groove 5, and the receiving hopper 3 is driven to the designated position; moreover, because the arc-shaped rail groove 52 is smoothly communicated with the end walls of the two arc-shaped rail grooves 52, when the supporting slide block 62 moves from the linear rail groove 51 into the arc-shaped rail groove 52, the supporting slide plate close to the inner side of the rail moving groove 5 slides out of the supporting groove 61 close to the inner side of the rail moving groove 5; when the material receiving hopper 3 moves from the arc rail groove 52 to the linear rail groove 51, the two supporting sliding blocks 62 are respectively connected with the corresponding supporting grooves 61 in a sliding manner.

As shown in fig. 5, in the present embodiment, the groove wall of the supporting groove 61 opposite to the notch is far away from the end wall of the supporting slider 62, an elastic block 621 is fixedly arranged at one end of the supporting slider 62 extending into the supporting groove 61, a rolling ball 622 is arranged at one end of the elastic block 621 far away from the supporting slider 62, and the rolling ball 622 is in rolling connection with the groove wall of the supporting groove 61. Therefore, when the supporting slide block 62 slides in the supporting groove 61, the elastic block 621 can generate certain elastic deformation when the receiving hopper 3 turns, so as to reduce the stress action between the supporting groove 61 and the supporting slide block 62, and simultaneously, the rolling ball 622 rolls to reduce the friction force between the supporting groove 61 and the supporting slide block 62.

As shown in fig. 3 and 5, the connection between the receiving hopper 3 and the supporting slider 62 is realized by the following structure in the present embodiment: the bottom mounting of supporting slide 62 is provided with connecting block 33, and the bottom of connecting block 33 is sunken to be provided with ball arc groove 34, and is provided with cable 31 on two relative lateral walls of top feed inlet of receiving hopper 3, and four cable 31 keep away from the one end fixedly connected with of receiving hopper 3 even ball 32, even ball 32 laminating rotation sets up in ball arc groove 34, and ball arc groove 34 equals even three fourths of ball 32 ball footpath along the maximum height of vertical direction moreover. Utilize connecting block 33 and support slider 62's fixed connection, ball arc groove 34 and even ball 32 spacing and pulling of cable 31 on vertical direction to hold, can connect receiving hopper 3 on support slider 62, at the removal in-process of receiving hopper 3, even ball 32 can rotate in ball arc groove 34 moreover to make rocking that receiving hopper 3 can take place to remove, reduce the stress effect to support slider 62.

As shown in fig. 5 and 6, the first drive motor 65 drives the driving gear 64 by the following structure: the upper surface of the driving support plate 63 is fixedly provided with a support shaft 631, the driving gear 64 is rotatably sleeved on the peripheral wall of the support shaft 631, the top end of the peripheral wall of the support shaft 631 is provided with a support block 632, the first driving motor 65 is fixed at one end of the support block 632 far away from the support shaft 631, the driving end of the first driving motor 65 is provided with a linkage gear 651, the linkage gear 651 is meshed with one side of the driving gear 64 far away from the driving walking tooth 66, and meanwhile, the side wall of the walking rail groove 5 is provided with a yielding groove 652 for the first driving motor 65 and the linkage gear 651 to pass through. The first driving motor 65 drives the linkage gear 651 to rotate, so that the linkage gear 651 is meshed with the driving gear 64, namely, the driving gear 64 can be driven to rotate electrically, and meanwhile, in the process of moving the receiving hopper 3, the first driving motor 65 and the linkage gear 651 move in the abdicating groove 652; in the present embodiment, the guide slide 67 is directly fixed to the tip of the support shaft 631.

As shown in fig. 6 and 7, in order to reduce the dust flying during the movement of the receiving hopper 3, in the present embodiment, the opposite side walls of the feeding hole at the top end of the receiving hopper 3 are provided with the sliding grooves 72, two sliding blocks 721 relatively slide in the sliding grooves 72, and one end of the sliding block 721 extending into the receiving hopper 3 is provided with the sealing plate 7, in the present embodiment, the two sealing plates 7 are relatively slidably arranged at the top end of the receiving hopper 3; the receiving hopper 3 is provided with an opening and closing piece 71 for driving the two sliding blocks 721 to slide, namely the opening and closing piece 71 for driving the closing plate 7 to slide relatively; the closing plates 7 are also provided with balance holes 74, and the opposite side walls of the two closing plates 7 are provided with snap-fit pressure pads 73 which are elastically abutted against each other. During the moving process of the receiving hopper 3 and the discharging process of the receiving hopper 3 at the top end of the base walking plate 2, the opening and closing piece 71 enables the two sealing plates 7 to close the feeding hole at the top end of the receiving hopper 3, so that the flying of dust is reduced, and meanwhile, the balance hole 74 balances the internal and external air pressures of the receiving hopper 3; when the receiving hopper 3 moves to the bottom end of the base walking board 2, the opening and closing member 71 causes the closing plate 7 to open the feeding hole of the receiving hopper 3, and the worker can replenish the receiving hopper 3 with the material.

As shown in fig. 7, the opening and closing member 71 includes an opening and closing gear 711 rotatably disposed on the horizontal top wall of the sliding slot 72, an opening and closing toothed plate 712 disposed at one end of the sliding block 721 extending into the sliding slot 72, and a second driving motor 713 disposed in the sliding slot 72 for driving the opening and closing gear 711 to rotate, wherein the two opening and closing toothed plates 712 are respectively engaged with two sides of the opening and closing gear 711 along the width direction of the sliding slot 72; when the second driving motor 713 drives the opening and closing gear 711 to rotate, the opening and closing gear 711 is respectively meshed with the two opening and closing toothed plates 712, so that the two opening and closing toothed plates 712 can be promoted to relatively slide, and the two sealing plates 7 are driven to relatively slide through the sliding block 721; and in order to facilitate the sliding of the opening and closing toothed plate 712, the opening and closing toothed plate 712 is located below the sliding block 721, so that in the horizontal direction, the sliding block 721 cannot abut against the opening and closing toothed plate 712 to affect the sliding of the opening and closing toothed plate 712.

The working process is as follows:

when the feeding device conveys materials, one receiving hopper 3 supplements the materials at the bottom end of the base walking plate 2, the other base walking plate 2 moves to the top end of the base walking plate 2 under the driving action of the driving assembly 6, and at the moment, the discharging valve 4 on the receiving hopper 3 at the top end of the base walking plate 2 is opened, so that the materials in the receiving hopper 3 can be fed into the corresponding calcining furnace; then start first driving motor 65, order about gear 64 and order about the meshing effect of walking tooth 66, under the guiding effect of direction slide bar 67 and direction spout 68, two receiving hopper 3 move respectively to two straight line rail groove 51 by the pitch arc rail groove 52 at both ends, thereby receiving hopper 3 below removes to base walking board 2 top and feeds in raw material, receiving hopper 3 that the below has been vacated moves to base walking board 2 bottom, make the staff replenish the material in receiving hopper 3 again, two receiving hopper 3 mutually support, thereby realize the quick transport to the material, and then realize adding the material in the calciner fast.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a feeding device for production of superfine nanometer calcium carbonate, includes base (1), its characterized in that: the material receiving hopper is characterized by further comprising a base walking board (2), a material receiving hopper (3) and a discharging valve (4), wherein the base walking board (2) is obliquely arranged above the base (1), the inclined lower surface of the base walking board (2) is provided with two walking rail grooves (5), each walking rail groove (5) comprises a straight line rail groove (51) and an arc line rail groove (52), the two straight line rail grooves (51) are arranged on the inclined lower surface of the base walking board (2) in parallel along the inclined direction of the base walking board (2), the two arc line rail grooves (52) are arranged on the top end and the bottom end of the inclined lower surface of the base walking board (2) respectively, the arc line rail grooves (52) are communicated with the end walls of the two rail grooves (52) in a smooth mode, the material receiving hopper (3) is provided with at least two arc lines and is arranged in the walking rail grooves (5) in a sliding mode, and an actuating assembly (6) for driving the material receiving hopper (3) to slide is arranged on the base walking, the bottom of receiving hopper (3) is provided with discharging pipe (41), baiting valve (4) set up on discharging pipe (41).

2. The charging device for the production of ultrafine nano calcium carbonate according to claim 1, characterized in that: the driving component (6) comprises support grooves (61) arranged on opposite side walls of the rail moving groove (5), support sliders (62) arranged at the top ends of the material receiving hoppers (3) and arranged in the two support grooves (61) in a sliding mode, support plates (63) arranged at the top ends of the support sliders (62), driving gears (64) rotatably arranged on the upper surfaces of the support plates (63), first driving motors (65) arranged on the support plates (63) and used for driving the driving gears (64) to rotate, driving teeth (66) arranged on the peripheral walls of the outer sides of the rail moving groove (5) and meshed with the driving gears (64), driving guide slide bars (67) rotatably arranged at the top ends of the driving gears (64), and guide slide grooves (68) arranged on the top walls of the rail moving groove (5) and connected with the guide slide bars (67) in a sliding mode.

3. The charging device for the production of ultrafine nano calcium carbonate according to claim 2, characterized in that: the utility model discloses a take advantage of the structure of a track, including extension board (63), fixed surface is provided with fulcrum shaft (631) on extension board (63), order about gear (64) and establish on the perisporium of fulcrum shaft (631), first driving motor (65) set up on fulcrum shaft (631) top through a piece (632), the drive end of first driving motor (65) is provided with linkage gear (651), linkage gear (651) and order about gear (64) keep away from and order about one side meshing of walking tooth (66), it provides yielding groove (652) that first driving motor (65) and linkage gear (651) pass through to walk to be provided with on rail groove (5) lateral wall.

4. The charging device for the production of ultrafine nano calcium carbonate according to claim 2, characterized in that: the groove wall of the opposite side of the supporting groove (61) and the notch is far away from the end wall of the supporting sliding block (62), one end, extending into the supporting groove (61), of the supporting sliding block (62) is provided with an elastic block (621), one end, far away from the supporting sliding block (62), of the elastic block (621) is provided with a rolling ball (622), and the rolling ball (622) is in rolling connection with the groove wall of the supporting groove (61).

5. The charging device for the production of ultrafine nano calcium carbonate according to claim 2, characterized in that: the bottom of supporting slider (62) is provided with connecting block (33), the bottom of connecting block (33) is provided with ball arc groove (34), be provided with cable (31) on the top feed inlet relative lateral wall of receiving hopper (3), the one end that receiving hopper (3) were kept away from in cable (31) is provided with even ball (32), even ball (32) laminating rotation sets up in ball arc groove (34), ball arc groove (34) are greater than the radius of even ball (32) along the maximum height of vertical direction, are less than the ball footpath of even ball (32).

6. The charging device for the production of ultrafine nano calcium carbonate according to claim 1, characterized in that: sealing plates (7) are arranged on the opposite side walls of the top feed inlet of the material receiving hopper (3) in a sliding manner respectively; when the two sealing plates (7) are oppositely buckled, the two sealing plates (7) seal the feeding hole of the material receiving hopper (3); the sealing plates (7) are provided with balance holes (74) in a penetrating mode, and the material receiving hopper (3) is provided with an opening and closing piece (71) for driving the two sealing plates (7) to slide.

7. The charging device for the production of ultrafine nano calcium carbonate according to claim 6, characterized in that: be provided with on the relative lateral wall of receiving hopper (3) top feed inlet and slide groove (72), be provided with on shrouding (7) and the relative lateral wall in slide groove (72) and slide block (721), slide block (721) and slide groove (72) slide and be connected, opening and shutting piece (71) including rotate set up switching gear (711) on the horizontal cell wall in slide groove (72), set up at slide block (721) stretch into the pinion rack (712) that opens and shuts of slide groove (72) one end and set up drive second driving motor (713) that switch gear (711) pivoted in slide groove (72), two pinion rack (712) open and shut meshes with both sides that open and shut gear (711) followed slide groove (72) width direction respectively.

8. The charging device for the production of ultrafine nano calcium carbonate according to claim 7, characterized in that: buckling pressure pads (73) are arranged on the opposite side walls of the two sealing plates (7), and the buckling pressure pads (73) are elastically abutted.

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