CN209917963U

CN209917963U - Kaolin calcining device

Info

Publication number: CN209917963U
Application number: CN201920179746.1U
Authority: CN
Inventors: 陈虎啸; 郭河生; 刘水浪
Original assignee: Shanxi Hengyuan Kaolin Co Ltd
Current assignee: Shanxi Hengyuan Kaolin Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2020-01-10
Anticipated expiration: 2029-01-31

Abstract

The utility model discloses a kaolin calcining device, at least comprising a rotary kiln, wherein the top of the rotary kiln is connected with a crushing box through a pipeline, an upper cone is arranged above the crushing box, a first funnel is inserted on the upper cone, a first crushing wheel and a second crushing wheel which are symmetrical in position are arranged below the first funnel, a fixed plate is arranged below the first crushing wheel and the second crushing wheel, a guide hole is arranged at the center of the fixed plate, a rotary rolling disc is arranged below the guide hole, a screen mesh group is arranged below the rotary rolling disc, the screen mesh group comprises at least two screen meshes which are sequentially arranged along the vertical direction, the two ends of the screen meshes are respectively a first end and a second end, a first channel is arranged on the second end, a recovery box is arranged at one end of the first channel, when the kaolin crude ore is completely crushed, the heat preservation is carried out on the rotary kiln.

Description

Kaolin calcining device

Technical Field

The utility model relates to a kaolin calcining equipment specifically is a kaolin calcining device.

Background

The kaolin is in a white, fine and soft soil shape, and has good physical and chemical properties such as plasticity, fire resistance and the like. The mineral components of the mineral composition mainly comprise kaolinite, halloysite, hydromica, illite, montmorillonite, quartz, feldspar and other minerals. Kaolin has wide application, is mainly used for paper making, ceramics and refractory materials, is used for coating, rubber filler, enamel glaze and white cement raw materials, and is used for industrial departments such as plastics, paint, pigment, grinding wheels, pencils, daily cosmetics, soap, pesticide, medicine, textile, petroleum, chemical industry, building materials, national defense and the like in a small amount.

The kaolin is often calcined by adopting a rotary kiln in the calcining process, and the kaolin entering the rotary kiln is required to be powdery, so that the kaolin ore is required to be crushed, however, the conventional kaolin calcining equipment is not complete in crushing the kaolin ore, so that some kaolin entering the rotary kiln is still blocky, the calcining quality is influenced, part of the kaolin remains in the equipment in the crushing process, the potential safety hazard is easily generated, and meanwhile, the kaolin ore is greatly wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a kaolin calcination device to solve the problem that proposes among the above-mentioned background art.

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

a kaolin calcining device at least comprises a rotary kiln, a crushing box and a recycling box, wherein a feeding end and a discharging end are respectively arranged at two ends of the rotary kiln, the rotary kiln is inclined, the feeding end is higher than the discharging end, three fixing bases are arranged below the rotary kiln and are sequentially fixed at the front half section, the middle section and the rear half section of the rotary kiln, the top of the rotary kiln is connected with the crushing box through a pipeline, the crushing box comprises an upper cone positioned above the crushing box, a lower cone positioned below the crushing box, a first crushing wheel, a second crushing wheel, a fixing plate, a rotary grinding disc and a screen group, a first funnel is inserted on the upper cone, a second funnel is inserted on the lower cone, the wide mouth of the first funnel faces upwards, the wide mouth of the second funnel faces downwards, and the first crushing wheel and the second crushing wheel which are symmetrical in position are arranged below the first funnel, the first grinding wheel is inserted at one end of a rotating shaft, the other end of the rotating shaft is fixedly provided with a driving wheel, one side of the driving wheel is meshed with a driven wheel, the driven wheel is coaxially connected with a second grinding wheel, the input end of the rotating shaft is electrically connected with a first speed reduction motor, a fixed plate is arranged below the first grinding wheel and the second grinding wheel, the center of the fixed plate is provided with a material guide hole, a rotary grinding disc is arranged below the material guide hole, the lower surface of the fixed plate is provided with a first grinding bulge, a second grinding bulge corresponding to the first grinding bulge is arranged on the rotary grinding disc, the input end of the rotary grinding disc is connected with the output end of the second speed reduction motor, a screen mesh group is arranged below the rotary grinding disc and comprises at least two screen meshes which are sequentially arranged along the vertical direction, and the screen meshes are inclined, the two ends of the screen mesh are respectively a first end and a second end, the first end is higher than the second end, a micro vibration motor is arranged below the first end, the second end is provided with a first channel, one end of the first channel is provided with a recovery box, the recovery box comprises a second channel, a first blower, a third channel and a second blower, one end of the second channel is provided with the first blower, the other end of the second channel is fixed on the third channel, the first channel is communicated with the second channel, the air outlet of the first blower is upward, one end of the third channel is provided with a second blower, the other end of the third channel is fixed above the first funnel, the air outlet of the second blower faces the other end of the third channel, the input end of the first air blower and the input end of the second air blower are both connected to the high-speed motor.

As a further aspect of the present invention: the aperture of the screen mesh is reduced from top to bottom in sequence.

As a further aspect of the present invention: the rotary kiln is cylindrical, one side of the outer side of the rotary kiln is wrapped by a heat insulation sleeve, the heat insulation sleeve is a first heat insulation layer, a first heating wire, a second heat insulation layer, a second heating wire and a third heat insulation layer which are annularly arranged from inside to outside, and the input ends of the first heating wire and the second heating wire are connected with an external power supply.

As a further aspect of the present invention: the first heat-insulating layer, the second heat-insulating layer and the third heat-insulating layer are made of vermiculite and asbestos.

As a further aspect of the present invention: the cross section of the fixing plate is funnel-shaped.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses on the basis of traditional kaolin calcination equipment, a new method is opened up and is set up crushing case and collection box at the top of rotary kiln, smash the processing through first crushing wheel and second crushing wheel in crushing case to the kaolin ore, then the kaolin raw ore that is smashed passes the guide hole and falls into on the rotary rolling dish, later through the bellied mating action of first grinding arch and second grinding, the kaolin ore is smashed into powder, later the powder drops on the screen cloth, then under the effect of miniature vibrating motor, the powder that accords with the requirement flows into the rotary kiln along the screen cloth downwards along the second funnel on the lower cone, and the kaolin for becoming powder gets into the collection box along the first passageway, and smashes and grinds again in flowing into the first funnel on the upper cone through the combined action of first air-blower and second air-blower in the collection box, and consider that the filter effect of a screen cloth probably appears the deviation, consequently, at least two screens have set gradually from top to bottom in smashing the case, and the aperture of screen cloth reduces in proper order to make the kaolin that gets into in the rotary kiln be powdered completely, and in order to keep warm to the rotary kiln, wrap up one deck insulation cover in the outside of rotary kiln, thereby add the thermal insulation performance of asbestos reinforcing rotary kiln through three-layer high temperature thermal insulation material vermiculite, and be provided with the heater strip in the insulation cover, heat the heater strip through external power supply, thereby realized the heat preservation heating of rotary kiln.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a kaolin calcination device.

Fig. 2 is a schematic view of the structure of the middle crushing box of the present invention.

Fig. 3 is a rear view structure diagram of the middle crushing box of the present invention.

FIG. 4 is the overall structure diagram of the middle thermal insulation cover of the present invention

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a kaolin calcining apparatus at least includes a rotary kiln 1, a pulverizing box 2 and a recycling box 3, a feeding end 11 and a discharging end 12 are respectively disposed at two ends of the rotary kiln 1, the rotary kiln 1 is inclined, the feeding end 11 is higher than the discharging end 12, three fixing bases 13 are disposed below the rotary kiln 1, the three fixing bases 13 are sequentially fixed at a front half section, a middle section and a rear half section of the rotary kiln 1, the top of the rotary kiln 1 is connected to the pulverizing box 2 through a pipeline, the pulverizing box 2 includes an upper cone 21 located above the pulverizing box, a lower cone 22 located below the pulverizing box, a first pulverizing wheel 23, a second pulverizing wheel 24, a fixing plate 25, a rotary grinding disc 26 and a screen group 27, a first funnel 211 is inserted on the upper cone 21, a second funnel 221 is inserted on the lower cone 22, the wide mouth of the first hopper 211 faces upwards, the wide mouth of the second hopper 221 faces downwards, a first crushing wheel 23 and a second crushing wheel 24 which are symmetrical in position are arranged below the first hopper 211, one end of a rotating shaft 231 is inserted into the first crushing wheel 23, a driving wheel 232 is fixed at the other end of the rotating shaft 231, a driven wheel 241 is mounted on one side of the driving wheel 232 in a meshed mode, the driven wheel 241 is coaxially connected with the second crushing wheel 24, the input end of the rotating shaft 231 is electrically connected with a first speed reducing motor 233, a fixing plate 25 is arranged below the first crushing wheel 23 and the second crushing wheel 24, the cross section of the fixing plate 25 is funnel-shaped, so that raw kaolin ores above the fixing plate 25 are concentrated to a material guide hole 251, raw kaolin ores below are dispersed to a position between a grinding disc 26 and the fixing plate 25, and a material guide hole 251 is formed in the center of the fixing plate 25, a rotary grinding disc 26 is arranged below the material guide holes 251, a first grinding protrusion 252 is arranged on the lower surface of the fixing plate 25, a second grinding protrusion 261 corresponding to the first grinding protrusion 252 is arranged on the rotary grinding disc 26, the input end of the rotary grinding disc 26 is connected with the output end of a second speed reduction motor 262, a screen group 27 is arranged below the rotary grinding disc 26, the screen group 27 comprises at least two screens 271 which are sequentially arranged along the vertical direction, and the apertures of the screens 271 are sequentially reduced from top to bottom, so that the ground kaolin is screened for multiple times, thereby ensuring that the kaolin entering the rotary kiln is powdery, the screens 271 are inclined, the two ends of the screens 271 are respectively a first end and a second end, the first end is higher than the second end, a micro vibration motor 272 is arranged below the first end, a first channel 31 is arranged on the second end, the recycling bin 3 is arranged at one end of the first channel 31, the recycling bin 3 comprises a second channel 32, a first air blower 33, a third channel 34 and a second air blower 35, the first air blower 33 is arranged at one end of the second channel 32, the other end of the second channel 32 is fixed on the third channel 34, the first channel 31 is communicated with the second channel 32, an air outlet of the first air blower 33 faces upwards, the second air blower 35 is arranged at one end of the third channel 34, the other end of the third channel 34 is fixed above the first hopper 211, an air outlet of the second air blower 35 faces towards the other end of the third channel 34, and an input end of the first air blower 33 and an input end of the second air blower 35 are connected to the high-speed motor 36.

During the in-service use, in order to improve the thermal insulation performance of rotary kiln 1, rotary kiln 1 is cylindric, rotary kiln 1's outside parcel has one side insulating sleeve 4, insulating sleeve 4 is the first heat preservation 41, first heater strip 42, second heat preservation 43, second heater strip 44 and the third heat preservation 45 that the annular was arranged from inside to outside, the input and external power supply 46 of first heater strip 42 and second heater strip 44 link together, and high temperature resistant vermiculite adds the asbestos for use of the material of first heat preservation 41, second heat preservation 43 and third heat preservation 45 simultaneously, thereby strengthens rotary kiln 1's thermal insulation performance through three-layer high temperature heat-insulating material vermiculite with the asbestos to be provided with the heater strip in the insulating sleeve 4, heat the heater strip through external power supply 46, thereby realized rotary kiln 1's heat preservation heating.

The utility model discloses a concrete working procedure is as follows:

firstly, a first speed reducing motor 233, a second speed reducing motor 262, a miniature vibration motor 272 and a high-speed motor 36 are sequentially started, then kaolin crude ore is poured into a crushing box 2 along a first hopper 211, the kaolin ore is crushed by a first crushing wheel 23 and a second crushing wheel 24 in the crushing box 2, then the crushed kaolin crude ore passes through a material guide hole 251 and falls onto a rotary grinding disc 26, then the kaolin crude ore is crushed into powder by the cooperation of a first grinding bulge 252 and a second grinding bulge 261, then the powder falls onto a screen 271, under the action of the miniature vibration motor 272, the powder meeting the requirements flows into the rotary kiln 1 along the second hopper 221 on a lower cone 22 downwards along the screen 271, and the kaolin which is changed into powder enters a recovery box 3 along a first channel 31 and flows into the first hopper 211 on an upper cone 21 to be crushed and re-crushed again by the cooperation of the first blower 33 and the second blower 35 in the recovery box 3 Grinding, and considering that there may be a deviation in the filtering effect of one screen 271, at least two screens 271 are sequentially disposed in the pulverizing box 2 from top to bottom, and the apertures of the screens 271 are sequentially reduced, so that kaolin entering the rotary kiln 1 is completely powdered.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A kaolin calcining device is characterized in that: the rotary kiln comprises at least a rotary kiln (1), a crushing box (2) and a recovery box (3), wherein a feeding end (11) and a discharging end (12) are respectively arranged at two ends of the rotary kiln (1), the rotary kiln (1) is inclined, the feeding end (11) is higher than the discharging end (12), three fixing bases (13) are arranged below the rotary kiln (1), the three fixing bases (13) are sequentially fixed at the front half section, the middle section and the rear half section of the rotary kiln (1), the top of the rotary kiln (1) is connected with the crushing box (2) through a pipeline, the crushing box (2) comprises an upper cone (21) positioned above the crushing box, a lower cone (22) positioned below the crushing box, a first crushing wheel (23), a second crushing wheel (24), a fixing plate (25), a rotary rolling disc (26) and a screen group (27), and a first hopper (211) is inserted on the upper cone (21), a second hopper (221) is inserted into the lower cone (22), a wide opening of the first hopper (211) faces upwards, a wide opening of the second hopper (221) faces downwards, a first crushing wheel (23) and a second crushing wheel (24) which are symmetrical in position are arranged below the first hopper (211), the first crushing wheel (23) is inserted into one end of a rotating shaft (231), a driving wheel (232) is fixed at the other end of the rotating shaft (231), a driven wheel (241) is meshed and installed at one side of the driving wheel (232), the driven wheel (241) and the second crushing wheel (24) are coaxially connected, an input end of the rotating shaft (231) is electrically connected with a first speed reduction motor (233), a fixing plate (25) is arranged below the first crushing wheel (23) and the second crushing wheel (24), a material guide hole (251) is formed in the center of the fixing plate (25), and a rotary grinding disc (26) is arranged below the material guide hole (251), the lower surface of fixed plate (25) is provided with first protruding (252) of grinding, it grinds protruding (261) with the corresponding second of first protruding (252) of grinding to be provided with on rotatory rolling dish (26), the input of rotatory rolling dish (26) links together with the output of second gear motor (262), the below of rotatory rolling dish (26) is provided with screen cloth group (27), screen cloth group (27) include at least two screen cloth (271) of arranging in proper order along the vertical direction, screen cloth (271) are the slope form, the both ends of screen cloth (271) are first end and second end respectively, first end is higher than the second end, the below of first end is provided with miniature vibrating motor (272), be provided with first passageway (31) on the second end, the one end of first passageway (31) is provided with collection box (3), collection box (3) include second passageway (32), The air conditioner comprises a first air blower (33), a third channel (34) and a second air blower (35), wherein one end of the second channel (32) is provided with the first air blower (33), the other end of the second channel (32) is fixed on the third channel (34), the first channel (31) is communicated with the second channel (32), an air outlet of the first air blower (33) faces upwards, one end of the third channel (34) is provided with the second air blower (35), the other end of the third channel (34) is fixed above a first funnel (211), an air outlet of the second air blower (35) faces towards the other end of the third channel (34), and the input end of the first air blower (33) and the input end of the second air blower (35) are connected to a high-speed motor (36).

2. The kaolin calcination device of claim 1, wherein: the aperture of the screen (271) is reduced from top to bottom in sequence.

3. The kaolin calcination device of claim 1, wherein: the rotary kiln is characterized in that the rotary kiln (1) is cylindrical, one side of a heat insulation sleeve (4) is wrapped on the outer side of the rotary kiln (1), the heat insulation sleeve (4) is a first heat insulation layer (41), a first heating wire (42), a second heat insulation layer (43), a second heating wire (44) and a third heat insulation layer (45) which are annularly arranged from inside to outside, and the input ends of the first heating wire (42) and the second heating wire (44) are connected with an external power supply (46).

4. The kaolin calcination device according to claim 3, wherein: the first heat-insulating layer (41), the second heat-insulating layer (43) and the third heat-insulating layer (45) are made of vermiculite and asbestos.

5. The kaolin calcination device of claim 1, wherein: the cross section of the fixing plate (25) is funnel-shaped.