CN219399827U - Heating stirring device - Google Patents

Abstract

The utility model provides a heating and stirring device which comprises a shell which is vertically arranged, wherein a feeding pipe communicated with the upper end of the shell is arranged at the lower end of the shell, a discharging pipe is arranged at the lower end of the shell, a hollow shaft is rotatably arranged in the shell, the hollow shaft is fixedly connected with a stirring pipe group which is communicated with the inside and is positioned in the shell, the hollow shaft is vertically arranged, the upper end of the hollow shaft extends out of the shell, a lead-out pipe is also arranged in the hollow shaft along the axis line, the upper end of the lead-out pipe is communicated with the outside, the lower end of the lead-out pipe is rotatably matched with the lower end of the hollow shaft, the stirring pipe group and the lead-out pipe form a passage, the hollow shaft is rotatably connected with an air inlet pipe communicated with the hollow shaft, a first sealing piece is arranged between the air inlet pipe and the hollow shaft, a second sealing piece is arranged between the lower end of the lead-out pipe and the hollow shaft, and a driver for driving the hollow shaft to rotate is fixedly arranged outside the shell. The utility model avoids the problem that stearic acid coating can cause disqualification of the final product due to the enlarged particle size after the calcium carbonate particles are agglomerated in the prior art.

Description

Heating stirring device

Technical Field

The utility model relates to the technical field of stirring equipment, in particular to a heating and stirring device.

Background

The ultrafine crushed calcium carbonate particles have a fine particle size and, in order to prevent agglomeration of the particles, it is necessary to coat the particles with stearic acid (or other dispersing agent) so that the particles are dispersed. Specifically, the dispersion of the calcium carbonate particles is generally performed during the stirring process, specifically, the crushed calcium carbonate particles are introduced into a stirring device, meanwhile, stearic acid is introduced, and then stirring is performed to mix the stearic acid with the calcium carbonate particles so as to realize the wrapping of the stearic acid on the calcium carbonate particles, so that the calcium carbonate particles are dispersed. In the actual operation process, since the water content of the calcium carbonate particles is easily increased due to environmental changes (i.e., water in a small amount of stirring device is easily absorbed during stirring to increase the water content), agglomeration is caused during stirring, thereby causing the dispersed calcium carbonate particles to become large (more calcium carbonate particles are packed with stearic acid after being aggregated, thereby causing the dispersed particle size to become larger), so that the final product is disqualified due to the particle size to become large.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a heating and stirring device, which solves the problem that the final product is unqualified due to the enlarged particle size caused by stearic acid wrapping after calcium carbonate particles are agglomerated in the prior art.

According to the embodiment of the utility model, the heating and stirring device comprises a shell which is vertically arranged, wherein the shell comprises a vertical cylinder section positioned at the upper end and an inverted conical cylinder section positioned at the lower end, a feeding pipe communicated with the upper end of the shell is arranged at the lower end of the shell, a discharging pipe is arranged at the lower end of the shell, a hollow shaft is rotatably arranged in the shell, the hollow shaft is fixedly connected with a stirring pipe group which is communicated with the inside and positioned in the shell, the hollow shaft is vertically arranged, the upper end of the hollow shaft extends out of the shell, a delivery pipe is also arranged in the hollow shaft along the coaxial line, the upper end of the delivery pipe is communicated with the outside, the lower end of the delivery pipe is in rotary fit with the lower end of the hollow shaft, the stirring pipe group and the delivery pipe form a passage, the hollow shaft is also rotatably connected with an air inlet pipe communicated with the hollow shaft, a first sealing piece is arranged between the air inlet pipe and the hollow shaft, a second sealing piece is arranged between the lower end of the delivery pipe and the hollow shaft, and a driver for driving the hollow shaft to rotate is fixedly arranged outside the shell.

In the above-mentioned embodiment, can be with hot-blast leading-in hollow axle through the air-supply line, then enter into in the stirring nest of tubes, when stirring, can heat material (i.e. calcium carbonate granule) through the stirring nest of tubes for the material is difficult for absorbing moisture, thereby avoids the agglomeration, thereby makes single calcium carbonate granule realize being wrapped up by stearic acid, has consequently avoided among the prior art that the stearic acid parcel can lead to final product because of particle diameter grow and disqualification problem behind the calcium carbonate granule agglomeration.

Further, the shell comprises a vertical cylinder section positioned at the upper end and an inverted cone cylinder section positioned at the lower end, the stirring tube group comprises a plurality of transverse tubes positioned in the vertical cylinder section and a plurality of inclined tubes positioned in the cone cylinder section, and all the transverse tubes, all the inclined tubes and the hollow shaft form a passage so that hot air enters the stirring tube group after passing through the hollow shaft and is led out through the lead-out tube.

Further, the horizontal pipe comprises two pairs which are arranged from top to bottom, the two pairs of horizontal pipes are symmetrically arranged on two sides of the hollow shaft, the inclined pipe comprises two pairs corresponding to the horizontal pipe, and the horizontal pipe is connected and communicated with the corresponding inclined pipe through the vertical pipe.

Further, the stirring tube group further comprises a pair of first connecting tubes located between the transverse tube and the inclined tube, one end of each first connecting tube is communicated with the inclined tube, the other end of each first connecting tube is communicated with the hollow shaft, and the middle section of each first connecting tube is communicated with the vertical tube.

Further, the two vertical pipes are respectively communicated with the space above the second sealing piece through the second connecting pipe and the hollow shaft.

Further, the air inlet pipe comprises a rotating section which stretches into the hollow shaft and is in sliding fit with the hollow shaft, a first limiting ring groove is concavely formed in the outer wall of the rotating section, a second limiting ring groove opposite to the first limiting ring groove is concavely formed in the inner wall of the hollow shaft, the first sealing piece comprises a limiting ring, the limiting ring is partially accommodated in the first limiting ring groove and the second limiting ring groove, and the limiting ring is in sliding contact with the first limiting ring groove and the second limiting ring groove.

Further, the air inlet pipe further comprises a bent pipe section communicated with the rotating section, and the upper end of the delivery pipe vertically penetrates out of the bent pipe section and is fixedly connected with the bent pipe section.

Further, one ends of the two inclined pipes, which are away from the connecting pipes, are respectively communicated with the space below the second sealing piece through the third connecting pipes and the hollow shaft.

Further, the inner wall of the lower end of the hollow shaft is fixedly connected with a sliding ring, the sliding ring is rotationally sleeved outside the lower end of the delivery pipe, the second sealing piece comprises a sliding check ring arranged between the sliding ring and the delivery pipe, and the sliding check ring is in sliding contact with the sliding ring and the delivery pipe.

Further, the sliding ring comprises an outer ring part and an inner ring part positioned in the outer ring part, the inner ring part is separated from the delivery pipe, the outer ring part is fixedly connected with the hollow shaft, the sliding check ring is in sliding contact with the outer ring part, the sliding check ring, the inner ring part and the outer ring part are surrounded to form a mounting ring groove, and a bearing is mounted in the mounting ring groove.

Compared with the prior art, the utility model has the following beneficial effects:

the hot air is led into the hollow shaft and the stirring pipe group through the air inlet pipe, the materials are heated along with stirring, and the materials can be prevented from absorbing moisture in the stirring process, so that agglomeration is avoided, single calcium carbonate particles are wrapped by stearic acid, and the problem that final products are unqualified due to the fact that the particle size of the final products is increased after the calcium carbonate particles are agglomerated is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a partial connection structure of a hollow shaft and an air inlet pipe according to an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of the partial structure at A in FIG. 2;

FIG. 4 is an enlarged schematic view of a partial connection structure of a hollow shaft and a delivery tube according to an embodiment of the present utility model;

in the above figures:

the device comprises a shell 1, a feed pipe 2, a discharge pipe 3, a hollow shaft 4, a delivery pipe 5, an air inlet pipe 6, a rotating section 7, a limiting ring 8, a sliding ring 9, a sliding retainer ring 10, an outer ring part 11, an inner ring part 12, a bearing 13, a vertical cylinder section 14, a conical cylinder section 15, a horizontal pipe 16, an inclined pipe 17, a vertical pipe 18, a first connecting pipe 19, a second connecting pipe 20, a third connecting pipe 21 and a bent pipe section 22.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

As shown in fig. 1-4, this embodiment provides a heating stirring device, it includes shell 1 of vertical setting, shell 1 upper end is provided with inlet pipe 2 with it intercommunication, shell 1 lower extreme is provided with row material pipe 3, the rotation of shell 1 is provided with cavity axle 4, cavity axle 4 fixedly connected with and inside intercommunication and lie in the stirring nest of tubes of shell 1, cavity axle 4 vertical setting and upper end extend outside shell 1, still coaxial line is provided with delivery tube 5 in the cavity axle 4, delivery tube 5 upper end and external intercommunication, lower extreme and cavity axle 4 lower extreme normal running fit, and cavity axle 4, stirring nest of tubes and delivery tube 5 form the passageway, cavity axle 4 still rotates and is connected with the air-supply line 6 with it intercommunication, be provided with first sealing member between air-supply line 6 and the cavity axle 4, be provided with the second sealing member between delivery tube 5 lower extreme and the cavity axle 4, still fixedly installed the driver of drive cavity axle 4 rotation outside shell 1.

In the above embodiment, the hot air can be led into the hollow shaft 4 through the air inlet pipe 6 and then enters the stirring pipe group, and when stirring is performed, the materials (namely, the calcium carbonate particles) can be heated through the stirring pipe group, so that the materials are not easy to absorb moisture, and agglomeration is avoided, and the single calcium carbonate particles are coated by stearic acid, so that the problem that the final product is unqualified due to the fact that the particle size of the final product is increased after the calcium carbonate particles are agglomerated is avoided; specifically, in the stirring process, the hot air enters the hollow shaft 4 below the second sealing element after passing through the stirring pipe group, and then is led out outwards after passing through the outlet pipe 5, and a circulating pump and a heating source can be arranged outside to enable a hot air path to form a heating source, an air inlet pipe 6, the hollow shaft 4, the stirring pipe group, the hollow shaft 4, the outlet pipe 5, the circulating pump and the hot air circulation of the heating source, and the hot air entering the hollow shaft 4 can heat the hot air in the outlet pipe 5 when passing through the outlet pipe 5, so that the temperature of the hot air led out through the outlet pipe 5 can be increased to enter the air inlet pipe 6 again by less energy sources, thereby playing a role in saving energy sources; more importantly, this also serves to save space (i.e. the delivery tube 5 is located within the hollow shaft 4, taking up no additional space).

In this embodiment, the driver may drive the hollow shaft 4 by a similar technique to that in the prior art (therefore, the driver is not shown), for example, the driver may drive the hollow shaft 4 by using a motor to drive a speed reducer in the prior art, for example, the speed reducer is meshed with the hollow shaft 4 by a gear sleeve fixedly sleeved outside the hollow shaft 4, and then the motor drives the speed reducer and drives the hollow shaft 4 to rotate.

As shown in fig. 1, 2 and 3, in this embodiment, preferably, a first sealing member is used to seal the upper end of the hollow shaft 4, so as to avoid the outward leakage of hot air from the upper end of the hollow shaft 4, specifically, the air inlet pipe 6 includes a rotating section 7 extending into the hollow shaft 4 and slidingly engaged with the hollow shaft 4, a first limiting ring groove is concavely disposed on the outer wall of the rotating section 7, a second limiting ring groove opposite to the first limiting ring groove is concavely disposed on the inner wall of the hollow shaft 4, the first sealing member includes a limiting ring 8, and the limiting ring 8 is partially accommodated in the first limiting ring groove and the second limiting ring groove, and the limiting ring 8 and the first limiting ring groove and the second limiting ring groove are both slidingly contacted, that is, the first sealing member adopted in this embodiment is the limiting ring 8, so that the hollow shaft 4 and the rotating section 7 can be separated, so as to avoid the influence on the stability of the air inlet pipe 6 caused by the rotation of the hollow shaft 4 after the contact between the two, and the limiting ring 8 plays a role of rotating sealing, so as to prevent the hot air from leaking out from the gap.

As shown in fig. 1, preferably, the air inlet pipe 6 further includes a curved pipe section 22 communicated with the rotating section 7, and the upper end of the delivery pipe 5 vertically penetrates out of the curved pipe section 22 and is fixedly connected with the curved pipe section 22, so that the hot air can be introduced and discharged outside the casing 1, and the hot air circulation (that is, the hot air circulation of the heating source, the air inlet pipe 6, the hollow shaft 4, the stirring pipe group, the hollow shaft 4, the delivery pipe 5, the circulating pump and the heating source) can be conveniently realized.

As shown in fig. 1 and 4, in this embodiment, preferably, a second sealing member is further used to seal between the hollow shaft 4 and the lower end of the delivery tube 5, so as to avoid hot air leaking into the upper end of the hollow shaft 4 in the process of entering the delivery tube 5, specifically, a sliding ring 9 is fixedly connected to the inner wall of the lower end of the hollow shaft 4, the sliding ring 9 is rotatably sleeved outside the lower end of the delivery tube 5, the second sealing member includes a sliding retainer ring 10 disposed between the sliding ring 9 and the delivery tube 5, the sliding retainer ring 10, the sliding ring 9 and the delivery tube 5 are in sliding contact, the second sealing member is the sliding retainer ring 10, and similar to the limiting ring 8, the function of rotation sealing is performed, so that hot air is prevented from entering the upper end of the hollow shaft 4, but the sliding ring 9 is further disposed at the second sealing member, so that the stabilizing effect of the hollow shaft 4 on the lower end of the delivery tube 5 is further improved, that the rotation supporting effect on the delivery tube 5 is improved, and the stable state of the delivery tube 5 is ensured in the rotation process of the hollow shaft 4 is not affected by rotation;

further, the sliding ring 9 comprises an outer ring portion 11 and an inner ring portion 12 located in the outer ring portion 11, the inner ring portion 12 is separated from the delivery tube 5, the outer ring portion 11 is fixedly connected with the hollow shaft 4, the sliding retainer ring 10 is in sliding contact with the outer ring portion 11, a mounting annular groove is formed by encircling the sliding retainer ring 10, the inner ring portion 12 and the outer ring portion 11, a bearing 13 is mounted in the mounting annular groove, specifically, the inner ring of the bearing 13 is fixedly sleeved outside the delivery tube 5, the outer ring of the bearing 13 is fixedly propped against the inner wall of the outer ring portion 11, the effect of reinforcing rotation support is achieved, the rotation of the hollow shaft 4 is ensured, the stability of the delivery tube 5 is not affected, and leakage is not guaranteed.

As shown in fig. 1, preferably, the casing 1 comprises a vertical tube section 14 at the upper end and an inverted cone tube section 15 at the lower end, the stirring tube set comprises a plurality of transverse tubes 16 positioned in the vertical tube section 14 and a plurality of inclined tubes 17 positioned in the cone tube section 15, all the transverse tubes 16, all the inclined tubes 17 and the hollow shaft 4 form a passage so that hot air enters the stirring tube set after passing through the hollow shaft 4 and then is led out through the lead-out tube 5, and the transverse tubes 16, the inclined tubes 17 and the hollow shaft 4 are communicated with each other so that the hot air can realize heat exchange with materials through the materials, thereby heating the materials to prevent the materials from agglomerating; the material is not fully filled in the vertical tube section 14 generally so that stirring can be smoothly carried out, after the material is dispersed, the material is led out through the discharging tube 3 at the lower end, the conical structure of the conical tube section 15 enables the lower end to be smaller, efficiency can be improved when discharging, meanwhile, when stirring is carried out, the inclined tube 17 is close to and separated from the conical structure, better stirring and mixing effects can be achieved, so that the materials can be mixed more fully, and the dispersing efficiency is improved.

As shown in fig. 1, preferably, the transverse pipes 16 comprise two pairs arranged from top to bottom, and the two pairs of transverse pipes 16 are symmetrically arranged at two sides of the hollow shaft 4, the inclined pipes 17 comprise two pairs corresponding to the transverse pipes 16, and the transverse pipes 16 are connected and communicated with the corresponding inclined pipes 17 through the vertical pipes 18; the stirring tube set further comprises a pair of first connecting tubes 19 positioned between the transverse tubes 16 and the inclined tubes 17, wherein one end of each first connecting tube 19 is communicated with the inclined tube 17, the other end is communicated with the hollow shaft 4, and the middle section is communicated with the vertical tube 18, the two pairs of transverse tubes 16 are arranged to stir the materials in the straight tube section more fully, specifically, when stirring is performed, the pair of transverse tubes 16 are positioned above the materials (namely, a cavity positioned above the materials, the material is filled in a small amount so as to be always positioned below the pair of transverse tubes 16 in the stirring process of the materials), and the pair of transverse tubes 16 do not directly heat the materials, but heat the space above the materials so as to avoid water absorption agglomeration of the materials positioned at the interface of the materials and the cavity due to the large temperature difference in the shell 1; further, the standpipe 18 and the first connecting pipe 19 can play a role in reinforcing the stirring pipe set, and meanwhile, the heat exchange area between the hot air and the materials is increased, so that the heating efficiency is improved.

As shown in fig. 1, preferably, the two vertical pipes 18 are respectively communicated with the space above the second sealing member by the second connecting pipe 20, one ends of the two inclined pipes 17, which are away from the connecting pipes, are respectively communicated with the space below the second sealing member by the third connecting pipe 21 and the space below the second sealing member by the hollow shaft 4, namely, after the hot air enters the hollow shaft 4, the hot air must pass through the stirring pipe group, then enter the hollow shaft 4 below the second sealing member from the third connecting pipe 21, and then are led out through the guiding pipe 5, so that the hot air can exchange heat with materials more efficiently in the stirring pipe group, and the heat energy utilization efficiency of the hot air is improved.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (9)

1. The utility model provides a heating agitating unit, a serial communication port, including the shell of vertical setting, the shell includes the section of a vertical section that is located the upper end and the section of an inverted cone section that is located the lower extreme, the shell upper end is provided with the inlet pipe with it intercommunication, the shell lower extreme is provided with row material pipe, rotate in the shell and be provided with the cavity axle, cavity axle fixedly connected with and inside intercommunication and lie in the stirring nest of tubes of shell, cavity axle vertical setting and upper end extend outside the shell, still coaxial line is provided with the delivery tube in the cavity axle, delivery tube upper end and external intercommunication, lower extreme and cavity axle lower extreme normal running fit, and cavity axle, stirring nest of tubes and delivery tube form the passageway, the cavity axle still rotates and is connected with the air-supply line with it intercommunication, be provided with first sealing member between air-supply line and the cavity axle, be provided with the second sealing member between delivery tube lower extreme and the cavity axle.

2. The heating and stirring apparatus of claim 1, wherein the stirring tube set includes a plurality of transverse tubes in the vertical tube section and a plurality of inclined tubes in the conical tube section, all of the transverse tubes and all of the inclined tubes and the hollow shaft forming a passageway for the heated air to enter the stirring tube set after passing through the hollow shaft and then to be conducted out through the delivery tube.

3. The heating and stirring apparatus of claim 2, wherein the stirring tube set further comprises a pair of first connecting tubes located between the cross tube and the inclined tube, the first connecting tubes being in communication with the inclined tube at one end and the hollow shaft at the other end and the standpipe at the intermediate section.

4. A heating and stirring apparatus as set forth in claim 3 wherein the two standpipes are each in communication with the space above the second seal member via a second connecting tube.

5. The heating and stirring device as set forth in claim 1, wherein the air inlet pipe comprises a rotating section extending into the hollow shaft and slidably matched with the hollow shaft, a first limiting ring groove is concavely arranged on the outer wall of the rotating section, a second limiting ring groove opposite to the first limiting ring groove is concavely arranged on the inner wall of the hollow shaft, the first sealing element comprises a limiting ring, the limiting ring is partially accommodated in the first limiting ring groove and the second limiting ring groove, and the limiting ring is in sliding contact with the first limiting ring groove and the second limiting ring groove.

6. The heating and stirring apparatus of claim 5, wherein the air inlet pipe further comprises a bent pipe section communicated with the rotating section, and the upper end of the delivery pipe vertically penetrates out of the bent pipe section and is fixedly connected with the bent pipe section.

7. A heating and stirring apparatus as set forth in any one of claims 1 to 6, characterized in that the ends of the two inclined tubes facing away from the connecting tube are respectively connected to the space below the second sealing member through third connecting tubes.

8. The heating and stirring apparatus of claim 7, wherein a sliding ring is fixedly connected to the inner wall of the lower end of the hollow shaft, the sliding ring is rotatably sleeved outside the lower end of the delivery tube, and the second sealing member comprises a sliding retainer ring arranged between the sliding ring and the delivery tube, and the sliding retainer ring is in sliding contact with both the sliding ring and the delivery tube.

9. The heating and stirring device of claim 8, wherein the sliding ring comprises an outer ring portion and an inner ring portion positioned in the outer ring portion, the inner ring portion is separated from the delivery tube, the outer ring portion is fixedly connected with the hollow shaft, the sliding retainer ring is in sliding contact with the outer ring portion, a mounting ring groove is formed by surrounding the sliding retainer ring, the inner ring portion and the outer ring portion, and a bearing is mounted in the mounting ring groove.