Equipment for producing calcium carbonate
Technical Field
The utility model belongs to the technical field of the preparation of inorganic calcium material, a equipment of production calcium carbonate is related to.
Background
The light calcium carbonate is also called precipitated calcium carbonate, which is prepared by calcining raw materials such as limestone and the like to generate lime (the main component is calcium oxide) and carbon dioxide, adding water to digest the lime to generate lime milk (the main component is calcium hydroxide), then introducing the carbon dioxide to carbonize the lime milk to generate calcium carbonate precipitate, and finally dehydrating, drying and crushing the calcium carbonate precipitate.
In the existing light calcium carbonate generation, a carbonization tower is commonly used for carbonization reaction, carbon dioxide gas is introduced into the carbonization tower filled with lime milk, and the carbonization process of the lime milk is improved in a stirring mode. Except for the production of the conventional light calcium carbonate product, the calcium carbonate or modified calcium carbonate with special shape is produced by adding agents such as a crystal form control agent or a modifier in the carbonization reaction process, and the existing production equipment has the difficulties of uneven agent addition, inconvenient operation and the like, and influences the product quality.
Disclosure of Invention
The utility model aims to overcome the defects and provide a device for producing calcium carbonate, which is convenient for adding medicament and has sufficient reaction.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
the equipment for producing calcium carbonate comprises a tower body, wherein the top of the tower body is provided with a feed inlet, and the bottom of the tower body is provided with a discharge outlet; the device also comprises a rotating motor, a doser and a gas distributor; the rotary motor is fixed above the tower body, and the doser is arranged at the top of the tower body and is connected with the rotary motor; the gas distributor is arranged at the bottom of the tower body; the doser comprises a liquid inlet disc, a liquid storage cylinder, a liquid outlet disc and a rotating rod; the liquid inlet plate is fixed at the top of the tower body and is provided with a liquid inlet I; the liquid storage cylinder is positioned below the liquid inlet disc, and a liquid inlet II is formed in the top of the liquid storage cylinder; the bottom of the liquid storage cylinder is communicated with the liquid outlet disc; liquid outlets are uniformly distributed on the liquid outlet disc; one end of the rotating rod is connected with the output end of the rotating motor, and the other end of the rotating rod penetrates through the liquid inlet disc and extends into the liquid storage cylinder; the liquid inlet disc is movably connected with the rotating rod through a bearing; the rotating rod is fixedly connected with the liquid storage cylinder.
Lime milk slurry enters the tower body from the feeding hole, the rotating rod drives the liquid storage cylinder to rotate until a liquid inlet II at the top of the liquid storage cylinder corresponds to a liquid inlet I on the liquid inlet disc, so that the liquid inlet disc is communicated with the liquid storage cylinder, a medicament is added into the liquid inlet I, the medicament flows into the liquid storage cylinder, the rotating motor drives the rotating rod to drive the liquid storage cylinder and the liquid outlet disc at the bottom of the liquid storage cylinder to rotate, different medicaments are mixed in the rotating liquid storage cylinder, and under the action of centrifugal force, the different medicaments are uniformly distributed in the tower body through liquid outlets on the liquid outlet disc and react with the lime milk slurry; the gas distributor inputs carbon dioxide gas to the tower body, the carbonization reaction is completed in the tower body, and the obtained calcium carbonate product is discharged from a discharge hole at the bottom of the tower body.
As a further technical improvement, the liquid inlet I and the liquid inlet II have the same size; the number of the liquid inlets II is equal to or more than that of the liquid inlets I. The liquid inlet I and the liquid inlet II have the same size, so that the medicament can be ensured to completely enter the liquid storage cylinder, and the medicament waste is avoided; when the quantity of the liquid inlets II is equal to or larger than that of the liquid inlets I, the corresponding positions of the liquid inlets I and the liquid inlets II are conveniently found, so that the liquid inlet disc is communicated with the liquid storage cylinder.
As a further technical improvement, the liquid storage cylinder is a hollow inverted round table. I.e., the top of the cartridge has a larger inner diameter than the bottom, to facilitate mixing and discharge of the medicament.
As a further technical improvement, the top of the gas distributor is umbrella-shaped, and the surface of the umbrella-shaped gas distributor is uniformly provided with gas outlets; the bottom of the gas distributor is connected with an external gas inlet pipe. The input carbon dioxide gas is uniformly distributed in the tower body through the gas distributor, which is helpful for enlarging the contact area of the gas, so that the gas is absorbed more completely, and the particles obtained by carbonization are more uniform.
Compared with the prior art, the utility model has the advantages and beneficial effect as follows:
1. the doser of the utility model provides an inlet for adding the medicament independently, which is different from the inlet of the lime milk slurry and is convenient to operate; can mix different medicaments in the liquid storage cylinder through the rotation mode according to actual need, carry out the preliminary treatment to the medicament, be favorable to strengthening the drug effect, flow into the tower body through going out the liquid dish at last, the distribution is even, reinforcing reaction effect.
2. The utility model discloses a relative position between inlet I on the doser passes through control feed liquor dish and the inlet on the liquid storage cylinder II has formed the effectual opening of medicament entry and has closed, and convenient operation can satisfy different interpolation needs.
3. The utility model discloses the carbon dioxide gas of input passes through gas distributor evenly distributed in the tower body, helps enlarging gaseous area of contact to make gaseous absorption more complete, the granule that the carbonization obtained is more even.
4. The utility model discloses can realize the production of different grade type products such as conventional calcium carbonate product, modified calcium carbonate product, application scope is wide, and the commonality is strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the doser of the present invention.
The attached drawings are as follows:
1-tower body, 2-feed inlet, 3-rotating motor, 4-liquid inlet disc, 5-rotating rod, 6-liquid storage cylinder, 7-liquid outlet disc, 8-gas distributor, 9-liquid inlet I, 10-liquid inlet II.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1:
the equipment for producing calcium carbonate comprises a tower body 1, wherein the top of the tower body 1 is provided with a feed inlet 2, and the bottom of the tower body is provided with a discharge outlet; the device also comprises a rotating motor 3, a doser and a gas distributor 8; the rotary motor 3 is fixed above the tower body 1, and the doser is arranged at the top of the tower body 1 and is connected with the rotary motor 3; the gas distributor 8 is arranged at the bottom of the tower body 1; the doser comprises a liquid inlet disc 4, a liquid storage cylinder 6, a liquid outlet disc 7 and a rotating rod 5; the liquid inlet disc 4 is fixed at the top of the tower body 1, and a liquid inlet I9 is arranged on the liquid inlet disc 4; the liquid storage cylinder 6 is positioned below the liquid inlet disc 4, and a liquid inlet II 10 is arranged at the top of the liquid storage cylinder 6; the bottom of the liquid storage cylinder 6 is communicated with the liquid outlet disc 7; liquid outlets are uniformly distributed on the liquid outlet disc 7; one end of the rotating rod 5 is connected with the output end of the rotating motor 3, and the other end of the rotating rod penetrates through the liquid inlet disc 4 and extends into the liquid storage cylinder 6; the liquid inlet disc 4 is movably connected with the rotating rod 5 through a bearing; the rotating rod 5 is fixedly connected with the liquid storage cylinder 6.
The liquid inlet I9 and the liquid inlet II 10 have the same size; the number of the liquid inlets II 10 is equal to that of the liquid inlets I9, and the number of the liquid inlets is two. The liquid inlet I9 and the liquid inlet II 10 have the same size, so that the medicament can be ensured to completely enter the liquid storage cylinder 6, and the medicament waste is avoided; when the quantity of the liquid inlet II 10 is equal to that of the liquid inlet I9, the corresponding positions of the liquid inlet I9 and the liquid inlet II 10 are conveniently found, so that the liquid inlet disc 4 is communicated with the liquid storage cylinder 6.
Lime milk slurry enters the tower body 1 from the feed port 2, the rotating rod 5 is rotated to drive the liquid storage cylinder 6 to rotate until a liquid inlet II 10 at the top of the liquid storage cylinder corresponds to a liquid inlet I9 on the liquid inlet disc, so that the liquid inlet disc 4 is communicated with the liquid storage cylinder 6, a medicament is added into the liquid inlet I9 and flows into the liquid storage cylinder 6, the rotating motor 3 drives the rotating rod to drive the liquid storage cylinder 6 and the liquid outlet disc 7 at the bottom to rotate, different medicaments are mixed in the rotating liquid storage cylinder 6, and are uniformly distributed in the tower body 1 through liquid outlets on the liquid outlet disc 7 under the action of centrifugal force to react with the lime milk slurry; the gas distributor 8 inputs carbon dioxide gas to the tower body, the carbonization reaction is completed in the tower body, and the obtained calcium carbonate product is discharged from a discharge hole at the bottom of the tower body 1.
Example 2:
the equipment for producing calcium carbonate comprises a tower body 1, wherein the top of the tower body 1 is provided with a feed inlet 2, and the bottom of the tower body is provided with a discharge outlet; the device also comprises a rotating motor 3, a doser and a gas distributor 8; the rotary motor 3 is fixed above the tower body 1, and the doser is arranged at the top of the tower body 1 and is connected with the rotary motor 3; the gas distributor 8 is arranged at the bottom of the tower body 1; the doser comprises a liquid inlet disc 4, a liquid storage cylinder 6, a liquid outlet disc 7 and a rotating rod 5; the liquid inlet disc 4 is fixed at the top of the tower body 1, and a liquid inlet I9 is arranged on the liquid inlet disc 4; the liquid storage cylinder 6 is positioned below the liquid inlet disc 4, and a liquid inlet II 10 is arranged at the top of the liquid storage cylinder 6; the bottom of the liquid storage cylinder 6 is communicated with the liquid outlet disc 7; liquid outlets are uniformly distributed on the liquid outlet disc 7; one end of the rotating rod 5 is connected with the output end of the rotating motor 3, and the other end of the rotating rod penetrates through the liquid inlet disc 4 and extends into the liquid storage cylinder 6; the liquid inlet disc 4 is movably connected with the rotating rod 5 through a bearing; the rotating rod 5 is fixedly connected with the liquid storage cylinder 6.
The liquid inlet I9 and the liquid inlet II 10 have the same size; a pair of liquid inlets I9 are symmetrically arranged on the liquid inlet plate 4; three liquid inlets II 10 are uniformly distributed at the top of the liquid storage cylinder 6. The liquid inlet I9 and the liquid inlet II 10 have the same size, so that the medicament can be ensured to completely enter the liquid storage cylinder 6, and the medicament waste is avoided; when the quantity of the liquid inlet II 10 is equal to that of the liquid inlet I9, the corresponding positions of the liquid inlet I9 and the liquid inlet II 10 are conveniently found, so that the liquid inlet disc 4 is communicated with the liquid storage cylinder 6.
The liquid storage cylinder 6 is a hollow inverted round table. I.e., the top of the cartridge has a larger inner diameter than the bottom, to facilitate mixing and discharge of the medicament.
The top of the gas distributor 8 is umbrella-shaped, and the surface of the umbrella is uniformly provided with gas outlet holes; the bottom of the gas distributor 8 is connected with an external gas inlet pipe. The carbon dioxide gas that inputs passes through gas distributor 8 evenly distributed in tower body 1, helps enlarging gaseous area of contact to make gaseous absorption more complete, the granule that the carbonization obtained is more even.
Lime milk slurry enters the tower body 1 from the feed port 2, the rotating rod 5 is rotated to drive the liquid storage cylinder 6 to rotate until a liquid inlet II 10 at the top of the liquid storage cylinder corresponds to a liquid inlet I9 on the liquid inlet disc, so that the liquid inlet disc 4 is communicated with the liquid storage cylinder 6, a medicament is added into the liquid inlet I9 and flows into the liquid storage cylinder 6, the rotating motor 3 drives the rotating rod to drive the liquid storage cylinder 6 and the liquid outlet disc 7 at the bottom to rotate, different medicaments are mixed in the rotating liquid storage cylinder 6, and are uniformly distributed in the tower body 1 through liquid outlets on the liquid outlet disc 7 under the action of centrifugal force to react with the lime milk slurry; the gas distributor 8 inputs carbon dioxide gas to the tower body, the carbonization reaction is completed in the tower body, and the obtained calcium carbonate product is discharged from a discharge hole at the bottom of the tower body 1.