CN217148592U

CN217148592U - Bayer process sodium aluminate solution refining plant

Info

Publication number: CN217148592U
Application number: CN202220393488.9U
Authority: CN
Inventors: 樊泽昌; 原仲珍
Original assignee: Hejin Changsheng Science And Technology Chemical Co ltd
Current assignee: Hejin Changsheng Science And Technology Chemical Co ltd
Priority date: 2022-02-25
Filing date: 2022-02-25
Publication date: 2022-08-09
Anticipated expiration: 2032-02-25

Abstract

The utility model discloses a Bayer sodium aluminate solution refining device, which relates to the technical field of chemical industry and comprises a tank body, wherein the left side and the right side of the tank body are both fixedly provided with an air distribution box, a heat exchange pipe is arranged between the air distribution boxes and positioned in the tank body, the end of the left side of the heat exchange pipe is fixedly connected with an output shaft of a driving motor, the driving motor is fixedly arranged on the left side of the left air distribution box, an air inlet hole is arranged on the heat exchange pipe and corresponds to the left air distribution box, a heating mechanism is arranged between the air distribution boxes and positioned outside the tank body, the upper surface of the tank body is provided with a charging hopper through a vibrating mechanism, a filter screen is obliquely arranged in the charging hopper, the utility model combines stirring and heating, can rapidly heat raw materials, the heating is more uniform, the efficiency is faster, the production efficiency is improved, and the discharged gas can be purified at the same time, the use is more environmental protection, filters the raw materials of pouring into, improves product quality.

Description

Bayer process sodium aluminate solution refining plant

Technical Field

The utility model relates to the technical field of chemical industry, specifically a Bayer process sodium aluminate solution refining plant.

Background

Sodium aluminate, also known as sodium metaaluminate, is a common chemical, white, odorless, tasteless, strongly basic solid, widely used in many areas such as civil engineering, petrochemical, water treatment, etc., by the bayer process, bauxite and a suspension of high concentration sodium hydroxide solution are formed, which is then passed into a reaction vessel, and alumina in the bauxite is reacted with sodium hydroxide by increasing the temperature and pressure to produce soluble sodium aluminate.

In the prior art, the traditional Bayer sodium aluminate solution refining plant mostly adopts the mode of water jacket to heat, and heating efficiency is low, reduces reaction efficiency, can have other excessive polluted environment during the pressure boost again, can't filter the raw materials of injection simultaneously, and impurity is more, and production quality is not good.

SUMMERY OF THE UTILITY MODEL

The utility model provides a Bayer process sodium aluminate solution refining plant to solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a refining device for Bayer sodium aluminate solution comprises a tank body, wherein air distribution boxes are fixedly arranged on the left side surface and the right side surface of the tank body, a heat exchange tube is arranged in the tank body between the air distribution boxes, the end head of the left side surface of the heat exchange tube is fixedly connected with an output shaft of a driving motor, the driving motor is fixedly arranged on the left side surface of the left air distribution box, an air inlet is arranged on the heat exchange tube corresponding to the left air distribution box, a heating mechanism is arranged between the air distribution boxes and on the outer side of the tank body, the upper surface of the tank body is provided with a charging hopper through a vibration mechanism, the upper surface of the charging hopper is hinged with a sealing cover, a filter screen is obliquely arranged in the charging hopper, the charging hopper is communicated with the tank body through a hose, the upper surface of the tank body is provided with a safety exhaust valve near the right side, the safety exhaust valve is connected with a purification mechanism, and a discharge valve is fixedly mounted at the lower side edge of the right side wall of the tank body.

Furthermore, the heat exchange tubes are uniformly distributed in the circumferential direction to form an annular structure.

Furthermore, sealing parts are arranged on the side wall of the air distribution box corresponding to the heat exchange tubes and the side wall of the tank body, and the right end of the right side heat exchange tube is not in contact with the right inner wall of the right side air distribution box.

Further, heating mechanism includes connecting pipe, air exhauster and air heater, the cloth gas case communicates mutually about the connecting pipe will be, air exhauster and air heater have set gradually from a left side to the right side on the connecting pipe.

Further, vibration mechanism includes spring, guide bar and vibrating motor, the spring is rectangle fixed mounting between jar body upper surface and loading hopper lower surface, the corresponding jar body upper surface of spring is provided with the guide bar, vibrating motor fixed mounting is in the loading hopper lower surface.

Further, the purification mechanism comprises a gas collection box, a guide pipe and an air purifier, the gas collection box is installed on the upper surface of the tank body, the gas collection box covers the safety exhaust valve, the gas collection box is connected with the air purifier through the guide pipe, and the air purifier is installed on the right side face of the tank body.

Compared with the prior art, the utility model provides a Bayer process sodium aluminate solution refining plant possesses following beneficial effect:

1. this Bayer process sodium aluminate solution refining plant drives the heat exchange tube rotation through setting up driving motor, and the heat exchange tube still heats the raw materials when stirring the raw materials, will stir and combine with the heating, can be quick heat the raw materials, and the heating is more even, and efficiency is faster, improves production efficiency.

2. This Bayer process sodium aluminate solution refining plant through setting up the discharge of the unnecessary gas of safety vent valve to jar internal, the rethread purifies the mechanism and can purify the combustion gas, uses environmental protection more.

3. This Bayer process sodium aluminate solution refining plant filters the internal raw materials of injection tank through the filter screen that sets up in the loading hopper, improves product quality, and vibration mechanism drives the loading hopper vibration simultaneously, effectively avoids filter screen blocking, convenient to use.

Drawings

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

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a tank body; 2. an air distribution box; 3. a heat exchange pipe; 4. a drive motor; 5. an air inlet; 6. a heating mechanism; 601. a connecting pipe; 602. an exhaust fan; 603. an air heater; 7. a vibration mechanism; 701. a spring; 702. a guide bar; 703. a vibration motor; 8. a hopper; 9. a sealing cover; 10. a filter screen; 11. a hose; 12. a safety exhaust valve; 13. a purification mechanism; 131. a gas collection tank; 132. a conduit; 133. an air purifier; 14. a discharge valve; 15. and a seal.

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. 1-3, the utility model discloses a bayer process sodium aluminate solution refining device, which comprises a tank body 1, wherein gas distribution boxes 2 are fixedly arranged on the left and right sides of the tank body 1, a heat exchange tube 3 is arranged between the gas distribution boxes 2 and in the tank body 1, the left side end of the heat exchange tube 3 is fixedly connected with an output shaft of a driving motor 4, the driving motor 4 is fixedly arranged on the left side of the left gas distribution box 2, a gas inlet 5 is arranged on the heat exchange tube 3 corresponding to the left gas distribution box 2, a heating mechanism 6 is arranged between the gas distribution boxes 2 and outside the tank body 1, a charging hopper 8 is arranged on the upper surface of the tank body 1 through a vibrating mechanism 7, a sealing cover 9 is hinged on the upper surface of the charging hopper 8, a filter screen 10 is obliquely arranged in the charging hopper 8, and the charging hopper 8 is communicated with the tank body 1 through a hose 11, the upper surface of the tank body 1 is provided with a safety exhaust valve 12 near the right side, the safety exhaust valve 12 is connected with a purification mechanism 13, and the lower side edge of the right side wall of the tank body 1 is fixedly provided with a discharge valve 14.

Specifically, the heat exchange tubes 3 are arranged uniformly along the circumferential direction to form an annular structure.

In this embodiment, the heat exchange tube 3 has a wider contact area with the raw materials in the tank body 1, a larger area, and better stirring and heat exchange effects.

Specifically, sealing parts 15 are arranged on the side walls of the gas distribution box 2 corresponding to the heat exchange tubes 3 and the side wall of the tank body 1, and the right end of the right side heat exchange tube 3 is not in contact with the right side inner wall of the right side gas distribution box 2.

In this embodiment, the sealing member 15 improves the sealing performance between the heat exchange tube 3 and the side walls of the gas distribution box 2 and the tank body 1, and prevents the heated gas from overflowing or the raw material in the tank body 1 from overflowing.

Specifically, heating mechanism 6 includes connecting pipe 601, air exhauster 602 and air heater 603, air distribution case 2 is linked together about connecting pipe 601 will, air exhauster 602 and air heater 603 have set gradually from a left side to the right side on connecting pipe 601.

In this embodiment, the right air distribution box 2 is exhausted by the exhaust fan 602 through the connecting pipe 601, so that the air after heat exchange in the heat exchange pipe 3 flows into the air heater 603, and the heated air enters the left air distribution box 2 through the connecting pipe 601 and flows into the heat exchange pipe 3 through the air inlet 5, so as to heat the raw material in the tank body 1.

Specifically, the vibration mechanism 7 includes a spring 701, a guide rod 702 and a vibration motor 703, the spring 701 is a rectangle and is fixedly installed between the upper surface of the tank body 1 and the lower surface of the charging hopper 8, the guide rod 702 is arranged on the upper surface of the tank body 1 corresponding to the spring 701, and the vibration motor 703 is fixedly installed on the lower surface of the charging hopper 8.

In this embodiment, spring 701 and guide bar 702 make loading hopper 8 have about buffering vibration function, and vibrating motor 703 drives loading hopper 8 vibration, avoids filtering off the impurity of crossing off to pile up on filter screen 10.

Specifically, the purification mechanism 13 includes a gas collection tank 131, a conduit 132 and an air purifier 133, the gas collection tank 131 is installed on the upper surface of the tank 1, the gas collection tank 131 covers the safety exhaust valve 12, the gas collection tank 131 is connected with the air purifier 133 through the conduit 132, and the air purifier 133 is installed on the right side surface of the tank 1.

In this embodiment, the gas collecting box 131 collects the gas discharged from the safety exhaust valve 12, and the gas in the gas collecting box 131 flows into the air purifier 133 through the conduit 132, and is discharged after being purified by the air purifier 133, so that the use is more environment-friendly.

When in use, the raw material is poured into a feeding hopper 8, the impurities in the raw material are filtered through a filter screen 10, the filtered impurities are vibrated by driving the feeding hopper 8 to vibrate along with a vibration motor 703 in a vibration mechanism 7, the impurities are butted to the left side of the filter screen 10, the filter screen 10 is prevented from being stacked and blocked, a heat exchange tube 3 is driven to rotate through a driving motor 4, the raw material in a tank body 1 is stirred by the heat exchange tube 3, in the stirring process, the right air distribution box 2 is pumped through a connecting tube 601 by an exhaust fan 602 in a heating mechanism 6, the gas after heat exchange in the heat exchange tube 3 flows into an air heater 603, the heated air enters the left air distribution box 2 through the connecting tube 601 and flows into the heat exchange tube 3 through an air inlet 5, the raw material in the tank body 1 is heated, the heat exchange tube 3 is used for heating the raw material while stirring, the raw material is also heated, the stirring and heating are combined, can be quick heat the raw materials, it is more even to heat, efficiency is faster, improves production efficiency, makes jar interior unnecessary gaseous emission of body 1 through safety vent valve 12, and gas collection tank 131 collects safety vent valve 12 combustion gas in the rethread purification mechanism 13, and the gas passes through pipe 132 in gas collection tank 131 and flows into air purifier 133, purifies the back through air purifier 133 and discharges again, uses environmental protection more.

To sum up, this Bayer process sodium aluminate solution refining plant combines stirring and heating, can be quick heats the raw materials, and the heating is more even, and efficiency is faster, improves production efficiency, can purify the combustion gas simultaneously, uses environmental protection more, filters the raw materials of injection into, improves product quality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a Bayer process sodium aluminate solution refining plant, includes jar body (1), its characterized in that: the air distribution tank is characterized in that air distribution tanks (2) are fixedly mounted on the left side surface and the right side surface of the tank body (1), a heat exchange pipe (3) is arranged in the tank body (1) between the air distribution tanks (2), the left side surface end of the heat exchange pipe (3) is fixedly connected with an output shaft of a driving motor (4), the driving motor (4) is fixedly mounted on the left side surface of the left air distribution tank (2), an air inlet hole (5) is formed in the position, corresponding to the left air distribution tank (2), on the heat exchange pipe (3), a heating mechanism (6) is arranged on the outer side of the tank body (1) between the air distribution tanks (2), a hopper (8) is mounted on the upper surface of the tank body (1) through a vibrating mechanism (7), a sealing cover (9) is hinged to the upper surface of the hopper (8), a filter screen (10) is obliquely arranged in the hopper (8), and the hopper (8) is communicated with the tank body (1) through a hose (11), the upper surface of the tank body (1) is provided with a safety exhaust valve (12) near the right side position, the safety exhaust valve (12) is connected with a purification mechanism (13), and the lower side edge of the right side wall of the tank body (1) is fixedly provided with a discharge valve (14).

2. The refining plant of sodium aluminate bayer process solution according to claim 1, characterized in that: the heat exchange tubes (3) are arranged in a ring structure along the circumferential direction by adopting hollow tubes.

3. The refining plant of sodium aluminate bayer process solution according to claim 1, characterized in that: sealing parts (15) are arranged on the side walls of the air distribution box (2) corresponding to the heat exchange tubes (3) and the side wall of the tank body (1), and the right end of the right side of the heat exchange tube (3) is not contacted with the inner wall of the right side of the right air distribution box (2).

4. The refining plant of sodium aluminate bayer process solution according to claim 1, characterized in that: heating mechanism (6) are including connecting pipe (601), air exhauster (602) and air heater (603), air distribution case (2) are linked together about connecting pipe (601), air exhauster (602) and air heater (603) have set gradually from a left side to the right side on connecting pipe (601).

5. The refining plant of sodium aluminate bayer process solution according to claim 1, characterized in that: vibration mechanism (7) include spring (701), guide bar (702) and vibrating motor (703), spring (701) are rectangle fixed mounting between jar body (1) upper surface and loading hopper (8) lower surface, the corresponding jar body (1) upper surface of spring (701) is provided with guide bar (702), vibrating motor (703) fixed mounting is in loading hopper (8) lower surface.

6. The refining plant of sodium aluminate bayer process solution according to claim 1, characterized in that: the purification mechanism (13) comprises a gas collection box (131), a guide pipe (132) and an air purifier (133), wherein the gas collection box (131) is installed on the upper surface of the tank body (1), the gas collection box (131) covers the safety exhaust valve (12), the gas collection box (131) is connected with the air purifier (133) through the guide pipe (132), and the air purifier (133) is installed on the right side surface of the tank body (1).