CN211261660U

CN211261660U - Drying device for calcium carbonate

Info

Publication number: CN211261660U
Application number: CN201922392606.5U
Authority: CN
Inventors: 王林虎
Original assignee: Jiande Xinwei Calcium Industry Co ltd
Current assignee: Jiande Xinwei Calcium Industry Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-08-14
Anticipated expiration: 2029-12-25

Abstract

The utility model discloses a drying device for calcium carbonate, which comprises a drying oven shell, wherein a feeding unit, a heating unit and a scattering unit are arranged in the drying oven shell; a feeding port is formed above the oven shell; a discharge hole is formed in the side wall of the lower part of the oven shell; the feeding unit consists of a plurality of conveying mechanisms which are sequentially connected end to end, and each conveying mechanism comprises a rotating roller and a conveying belt arranged on the rotating roller; the heating unit comprises a heater arranged in the conveying mechanism and a hot air cavity arranged at the bottom of the oven shell; the scattering unit is sequentially arranged below the tail end of each conveying mechanism. The utility model has the advantages of calcium carbonate can not agglomerate, and the drying cabinet drying effect is better relatively.

Description

Drying device for calcium carbonate

Technical Field

The utility model relates to a calcium carbonate processing field, especially a drying device for calcium carbonate.

Background

In the process of calcium carbonate processing, the prepared calcium carbonate needs to be dried for subsequent production. The calcium carbonate used in the current factory is dried by a drying tower.

However, the drying towers used at present are large-scale high-power drying towers, which are generally used for large-scale large-batch calcium carbonate drying operation, and energy is wasted when the drying towers are used for drying small-batch calcium carbonate. To cope with heating of small batches of calcium carbonate, the plant employs a drying oven. However, calcium carbonate in a drying box used in a factory is in a static state in the drying process at present, the surface of the calcium carbonate is easy to dry, and the interior of the calcium carbonate is not completely dried. And because the calcium carbonate treatment is dried in a static state, the phenomenon of calcium carbonate powder agglomeration can occur, and the product quality is reduced due to the calcium carbonate agglomeration. And what the drying cabinet adopted is that the mode of letting in hot air carries out the drying, can't effectual adjustment drying scale according to the actual conditions of calcium carbonate in the in-service use to cause dry effect not good.

So the calcium carbonate drying cabinet that uses in the factory at present has calcium carbonate and easily appears caking and influence product quality, and the not good problem of drying cabinet actual drying effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drying device for calcium carbonate. The utility model has the advantages of calcium carbonate can not agglomerate, and the drying cabinet drying effect is better relatively.

The technical scheme of the utility model: a drying device for calcium carbonate comprises an oven shell, wherein a feeding unit, a heating unit and a scattering unit are arranged in the oven shell; a feeding port is formed above the oven shell; a discharge hole is formed in the side wall of the lower part of the oven shell; the feeding unit consists of a plurality of conveying mechanisms which are sequentially connected end to end, and each conveying mechanism comprises a rotating roller and a conveying belt arranged on the rotating roller; the heating unit comprises a heater arranged in the conveying mechanism and a hot air cavity arranged at the bottom of the oven shell; the scattering unit is sequentially arranged below the tail end of each conveying mechanism.

In the foregoing drying device for calcium carbonate, the last conveying mechanism in the feeding unit penetrates from the discharge port to the outside of the oven shell, and transports the material out of the drying device.

In the foregoing drying device for calcium carbonate, the scattering unit includes a barrel body, a rotating shaft disposed in the barrel body, centrifugal discs disposed above, in the middle of, and below the rotating shaft, respectively, a feeding hopper disposed above the barrel body, and a motor disposed on the outer shell of the oven and corresponding to the rotating shaft; the motor is connected with the rotating shaft through a sleeve penetrating through the barrel body and the shell of the oven; a belt which is respectively connected with the motor and the rotating shaft in a rotating way is arranged in the sleeve; the rotating shaft is driven to rotate by a belt after the motor rotates; a discharge hole is formed below the barrel body.

In the drying device for calcium carbonate, the top plate of the oven shell is provided with an exhaust plate; air holes are uniformly distributed on the exhaust plate.

In the drying device for calcium carbonate, the feeding hopper is provided with a scraper tangent to the bottom of the conveyor belt; the scraper can scrape off calcium carbonate adhered to the conveyor belt.

In the drying device for calcium carbonate, one end of the hot air cavity is provided with an air duct penetrating through the shell of the oven, and the air duct is provided with a sealing valve; the upper side of the hot air cavity is provided with an air hole.

In the drying device for calcium carbonate, an inwardly-contracted check ring is arranged in the barrel body; the retaining ring corresponds to the centrifugal disc, and the calcium carbonate is thrown out under the action of the centrifugal disc and then is collected above the next centrifugal disc through the retaining ring, so that the calcium carbonate powder can be fully scattered.

Compared with the prior art, the tail end of the conveying mechanism is additionally provided with the scattering unit, so that the calcium carbonate powder is scattered for multiple times in the drying process, and the possibility of caking of the calcium carbonate powder is avoided. Through adding in transport mechanism and establishing the heater, add in oven shell bottom and establish the hot-air cavity, heater and hot-air carry out dual drying to calcium carbonate powder simultaneously, and the heater can directly heat the calcium carbonate powder on the conveyer belt, compares the drying effect that only adopts the hot-air heating better. So the utility model has the advantages of calcium carbonate can not agglomerate, and the drying effect of the drying oven is relatively better. Furthermore, by adopting a plurality of heaters for heating, the working number of the heaters can be selectively controlled according to the situation in the actual working process, so that the working scale of the drying device can be effectively adjusted. Through install the scraper blade additional on the income hopper of breaking up the unit, can hang down the calcium carbonate powder of adhesion on the conveyer belt is effectual.

Drawings

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

FIG. 2 is an enlarged view at A in FIG. 1;

the labels in the figures are: 1-oven shell, 11-feeding port, 12-discharging port, 13-exhaust plate, 2-conveying mechanism, 21-rotating roller, 22-conveying belt, 31-heater, 32-hot air chamber, 41-barrel, 42-rotating shaft, 43-feeding hopper, 45-scraper, 51, 52, 53-centrifugal disc, 6-motor and 61-sleeve.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A drying device for calcium carbonate is shown in figures 1-2 and comprises an oven shell 1, wherein a feeding unit, a heating unit and a scattering unit are arranged in the oven shell 1; a feeding port 11 is formed above the oven shell 1; a discharge hole 12 is formed in the side wall of the lower part of the oven shell 1; the feeding unit consists of four conveying mechanisms 2 which are sequentially connected end to end, and each conveying mechanism 2 comprises two rotating rollers 21 and a conveying belt 22 arranged on the rotating rollers 21; the heating unit comprises a heater 31 arranged in the conveying mechanism 2 and a hot air cavity 32 arranged at the bottom of the oven shell 1; the scattering unit is disposed below the conveying end of each conveying mechanism 2 in turn.

The last conveying mechanism 2 in the feeding unit penetrates from the discharge port 12 to the outer side of the oven shell 1.

The scattering unit comprises a barrel body 41, a rotating shaft 42 arranged in the barrel body 41, a centrifugal disc 51, a centrifugal disc 52, a centrifugal disc 53 which are respectively arranged on the upper part, the middle part and the lower part of the rotating shaft 42, a feeding hopper 43 arranged above the barrel body 41, and a motor 6 which is arranged on the oven shell 1 and corresponds to the rotating shaft 42; the motor 6 is connected with the rotating shaft 42 through a sleeve 61 penetrating through the barrel body 41 and the oven shell 1; a belt which is respectively connected with the motor 6 and the rotating shaft 42 in a rotating way is arranged in the sleeve 61; a discharge hole is formed below the barrel body 41.

An exhaust plate 13 is arranged on the top plate of the oven shell 1; and air holes are uniformly distributed on the exhaust plate 13.

The feeding hopper 43 is provided with a scraping plate 45 tangent to the bottom of the conveyor belt 22.

One end of the hot air cavity 32 is provided with an air duct which penetrates through the oven shell 1, and a sealing valve is arranged on the air duct; the upper side of the hot air cavity 32 is provided with air holes.

The working principle is as follows: the utility model discloses as shown in fig. 1-2, according to the actual calcium carbonate condition of waiting to dry, open heater 31 and constantly let in hot air in to steam chamber 32. After the drying device is preheated, calcium carbonate powder is put into the drying device through the feeding port 11. The calcium carbonate powder falls on the conveyor belt 22 while being heated and dried by the heater 31. The calcium carbonate powder falls into the scattering unit through the inlet hopper 43 at the end of the conveying mechanism 2 and is scattered by the centrifugal disc 51, the centrifugal disc 52 and the centrifugal disc 53 in sequence. The broken calcium carbonate powder falls from the tub 41 onto the conveyor belt 22 of the next conveyor mechanism 2. The calcium carbonate powder falls into the last conveying mechanism 2 after being dried and scattered for a plurality of times and is conveyed out of the drying device through the discharge port 12. Moisture during the drying process is discharged out of the drying apparatus through the airing holes of the airing plate 13.

Claims

1. The utility model provides a drying device for calcium carbonate which characterized in that: the drying oven comprises an oven shell (1), wherein a feeding unit, a heating unit and a scattering unit are arranged in the oven shell (1); a feeding port (11) is arranged above the oven shell (1); a discharge hole (12) is formed in the side wall of the lower part of the oven shell (1); the feeding unit consists of a plurality of conveying mechanisms (2) which are sequentially connected end to end, and each conveying mechanism (2) comprises a rotating roller (21) and a conveying belt (22) arranged on the rotating roller (21); the heating unit comprises a heater (31) arranged in the conveying mechanism (2) and a hot air cavity (32) arranged at the bottom of the oven shell (1); the scattering unit is arranged below the tail end of each conveying mechanism (2) in sequence.

2. The drying device for calcium carbonate according to claim 1, characterized in that: and the last conveying mechanism (2) in the feeding unit penetrates through the outer side of the oven shell (1) from the discharge hole (12).

3. The drying device for calcium carbonate according to claim 1, characterized in that: the scattering unit comprises a barrel body (41), a rotating shaft (42) arranged in the barrel body (41), centrifugal discs (51, 52 and 53) arranged above, in the middle and below the rotating shaft (42), a feeding hopper (43) arranged above the barrel body (41), and a motor (6) arranged on the oven shell (1) and corresponding to the rotating shaft (42); the motor (6) is connected with the rotating shaft (42) through a sleeve (61) penetrating through the barrel body (41) and the oven shell (1); and a belt which is respectively connected with the motor (6) and the rotating shaft (42) in a rotating way is arranged in the sleeve (61).

4. The drying device for calcium carbonate according to claim 1, characterized in that: an exhaust plate (13) is arranged on the top plate of the oven shell (1); air holes are uniformly distributed on the exhaust plate (13).

5. The drying device for calcium carbonate according to claim 3, characterized in that: and a scraping plate (45) tangent to the bottom of the conveyor belt (22) is arranged on the feeding hopper (43).

6. The drying device for calcium carbonate according to claim 1, characterized in that: one end of the hot air cavity (32) is provided with an air duct which penetrates through the oven shell (1), and a sealing valve is arranged on the air duct; the upper side of the hot air cavity (32) is provided with air holes.