CN219539449U

CN219539449U - Spray drying device of molecular sieve

Info

Publication number: CN219539449U
Application number: CN202320211621.9U
Authority: CN
Inventors: 黄新华; 张爽; 杨五星
Original assignee: Zhengzhou Aluminum City New Material Technology Co ltd
Current assignee: Zhengzhou Aluminum City New Material Technology Co ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-08-18
Anticipated expiration: 2033-02-14

Abstract

The utility model discloses a spray drying device for a molecular sieve, which belongs to the technical field of molecular sieve drying and comprises a drying tower, wherein a rotary spraying device is arranged on the inner top wall of the drying tower, the spraying device is communicated with a feeding pipe, and the other end of the feeding pipe is communicated with a feeding device. The inner peripheral side wall of the drying tower is fixedly provided with an annular air outlet ring, the air outlet ring is communicated with a hot air pipe, and the other end of the hot air pipe is communicated with a hot air device. The lower extreme of drying tower is equipped with the discharge gate, and the intercommunication is equipped with the outlet duct on the lateral wall of drying tower, the other end intercommunication of outlet duct is equipped with cyclone, the last intercommunication of cyclone is equipped with purifier. The molecular sieve fog particles can be combined with the hot air flowing upwards from the bottom of the drying tower more quickly and uniformly, so that the vaporific molecular sieve can be quickly dried and formed, the forming speed of the vaporific molecular sieve is accelerated, and the drying efficiency of the molecular sieve is improved.

Description

Spray drying device of molecular sieve

Technical Field

The utility model belongs to the technical field of molecular sieve drying, and particularly relates to a molecular sieve spray drying device.

Background

In recent years, molecular sieves have been widely used in the fields of adsorption separation, catalysis and the like due to their unique properties. Molecular sieve is used as a high-efficiency adsorbent and catalyst, plays an important role in refining of petrochemical industry, the molecular sieve manufacturing process generally comprises a plurality of main procedures of synthesis, molding, drying and the like, the molecular sieve drying process mostly adopts a spray drying method, the common molecular sieve spray drying devices on the market are different, the spray heads of the existing spray drying devices are fixed and cannot rotate, the spraying effect is poor, and the molecular sieve drying efficiency is low. In addition, the existing blast pipes send hot air into the drying tower from one side of the drying tower, so that the left and right hot air in the drying tower deviate, the hot air cannot be uniformly conveyed upwards in the drying tower, the heated air flow of the molecular sieve is uneven, and the quality of the molecular sieve formed by drying is poor.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a molecular sieve spray drying device which solves the problems in the prior art.

The purpose of the utility model is realized in the following way: the spray drying device of the molecular sieve comprises a drying tower, wherein a rotary spraying device is arranged on the inner top wall of the drying tower, the spraying device is communicated with a feeding pipe, and the other end of the feeding pipe is communicated with a feeding device; an annular air outlet ring is fixedly arranged on the inner peripheral side wall of the drying tower, a hot air pipe is communicated with the air outlet ring, and a hot air device is communicated with the other end of the hot air pipe; the lower extreme of drying tower is equipped with the discharge gate, and the intercommunication is equipped with the outlet duct on the lateral wall of drying tower, the other end intercommunication of outlet duct is equipped with cyclone, the last intercommunication of cyclone is equipped with purifier.

Further, the spraying device comprises a rotary spray head, the rotary spray head is spherical, and a plurality of spray holes are formed in the peripheral side wall of the rotary spray head.

Further, the feeding device comprises a mixing box, and a feeding port and a liquid adding port are formed in the mixing box; the feeding device further comprises a material conveying pump arranged in the mixing box, and the outlet end of the material conveying pump is communicated with one end, located outside the drying tower, of the feeding pipe.

Further, an inclined plane is arranged on the inner wall of the air outlet ring, a plurality of air outlet heads communicated with the inner cavity of the air outlet ring are fixedly arranged on the inclined plane, and the air outlet heads face the direction of the spraying device.

Further, the hot air device comprises an induced draft fan and an air heater, the air heater is communicated with one end of the hot air pipe, which is positioned outside the drying tower, and the air heater is communicated with the induced draft fan through a connecting pipe.

Further, the drying tower comprises an upper cylinder part and a lower cone part, and the upper cylinder part and the lower cone part are integrally formed; the junction of upper cylinder portion and lower cone portion is fixed and is equipped with the staple bolt, fixedly connected with is used for supporting the landing leg of staple bolt on the staple bolt.

Further, the discharge port is arranged at the middle tip end position of the lower cone part.

The utility model has the beneficial effects that: through setting up atomizer as rotatory, fog grain is after spouting from the shower nozzle, receives a rotatory horizontal throwing power in addition to receiving gravity and injection effect, makes fog grain can be quick, more even combine with the steam that the drying tower bottom was up-flow, makes vaporific molecular sieve rapid drying take shape then for vaporific molecular sieve's shaping speed, improves molecular sieve drying efficiency. Through setting up annular air-out ring in the inside of drying tower, upwards spray the hot-blast air current simultaneously from the Zhou Nabi of drying tower, the hot-blast even upward flow in the drying tower is inside, makes vaporific molecular sieve all can evenly receive the hot-blast current, improves molecular sieve's product shaping quality.

Drawings

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

FIG. 2 is a schematic diagram of a spray head according to the present utility model;

FIG. 3 is a schematic view of the structure of the air outlet ring of the present utility model;

fig. 4 is a schematic top view of the air outlet ring of the present utility model.

In the figure: 1. drying tower 2, atomizer 3, inlet pipe 4, feed arrangement 5, air-out ring 6, hot-blast main 7, hot-blast main 8, discharge gate 9, outlet duct 10, cyclone 11, purifier 12, shower nozzle 13, orifice 14, inclined plane 15, air-out head 16, lower cone 17, landing leg.

Description of the embodiments

The present utility model will be described in further detail with reference to the accompanying drawings, and it should be noted that all the azimuth words, such as up, down, front, back, left, right, etc., appearing in the present utility model are azimuth words made by taking fig. 1 as a reference drawing, and all the azimuth words do not limit the present utility model, but are used for more clear description and explanation of the present utility model.

Examples

As shown in fig. 1-4, this embodiment discloses a molecular sieve spray drying device, which includes a drying tower 1, wherein a rotary spraying device 2 is arranged on the inner top wall of the drying tower 1, the spraying device 2 is communicated with a feed pipe 3, and the other end of the feed pipe 3 is communicated with a feed device 4. An annular air outlet ring 5 is fixedly arranged on the inner peripheral side wall of the drying tower 1, a hot air pipe 6 is communicated with the air outlet ring 5, and a hot air device 7 is communicated with the other end of the hot air pipe 6. The lower extreme of drying tower 1 is equipped with discharge gate 8, and the intercommunication is equipped with outlet duct 9 on the lateral wall of drying tower 1, and the other end intercommunication of outlet duct 9 is equipped with cyclone 10, and the intercommunication is equipped with purifier 11 on the cyclone 10.

In this embodiment, the spraying device 2 is set to rotate, and after the mist particles are sprayed out from the spray head 12, the mist particles are subjected to a rotating transverse throwing force in addition to the action of gravity and the action of spraying force, so that the mist particles can be quickly and uniformly combined with hot air flowing upwards from the bottom of the drying tower 1, and then the mist molecular sieve is quickly dried and formed, the formation of the mist molecular sieve is quickened, and the drying efficiency of the molecular sieve is improved. Through setting up annular air-out ring 5 in the inside of drying tower 1, upwards spray the hot-blast air current simultaneously from the Zhou Nabi of drying tower 1, the hot-blast even upward flow in drying tower 1, make vaporific molecular sieve all can evenly receive the hot-blast current, improve molecular sieve's product shaping quality.

Examples

For better effect, the spraying device 2 comprises a rotary spray head 12, the rotary spray head 12 is spherical, and a plurality of spray holes 13 are formed in the peripheral side wall of the rotary spray head 12. The inner wall of the air outlet ring 5 is provided with an inclined surface 14, a plurality of air outlet heads 15 communicated with the inner cavity of the air outlet ring 5 are fixedly arranged on the inclined surface 14, and the air outlet heads 15 face the direction of the spraying device 2. When in use, the liquid molecular sieve is ejected from the rotary nozzle 12, the hot air is ejected from the plurality of air outlet heads 15 of the air outlet ring 5, and the vaporific molecular sieve is quickly dried and formed after being impacted with the hot air flow.

For better effect, the feeding device 4 comprises a mixing box, and a feed inlet and a liquid adding port are formed in the mixing box. The feeding device 4 further comprises a material conveying pump arranged inside the mixing box, and the outlet end of the material conveying pump is communicated with one end, located outside the drying tower 1, of the feeding pipe 3. When the molecular sieve is used, the molecular sieve is added into the mixing box from the charging hole, meanwhile, a proper amount of water is added into the mixing box from the charging hole, after the molecular sieve is mixed in the mixing box, the liquid molecular sieve is conveyed to the spray head 12 through the feeding pipe 3 by the conveying pump, and then the spray head 12 sprays out to the drying tower 1.

For better effect, the hot air device 7 comprises an induced draft fan and an air heater, wherein the air heater is communicated with one end of the hot air pipe 6 positioned outside the drying tower 1, and the air heater is communicated with the induced draft fan through a connecting pipe. The induced draft fan is used for sucking air into the air heater, the air heated by the air heater forms hot air flow, and the hot air flow is sprayed into the drying tower 1 from the air outlet head 15 of the air outlet ring 5.

For better effect, the drying tower 1 comprises an upper cylinder portion and a lower cone portion 16, and the upper cylinder portion and the lower cone portion 16 are integrally formed. The junction of upper cylinder portion and lower cone portion 16 is fixed and is equipped with the staple bolt, fixedly connected with a plurality of landing legs 17 that are used for supporting the staple bolt on the staple bolt. The discharge opening 8 is provided at the intermediate tip position of the lower cone 16.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the concept thereof, can be replaced or changed equally within the scope of the present utility model.

Claims

1. A spray drying device for molecular sieves, comprising a drying tower (1), characterized in that: the inner top wall of the drying tower (1) is provided with a rotary spraying device (2), the spraying device (2) is communicated with a feeding pipe (3), and the other end of the feeding pipe (3) is communicated with a feeding device (4); an annular air outlet ring (5) is fixedly arranged on the inner peripheral side wall of the drying tower (1), a hot air pipe (6) is communicated with the air outlet ring (5), and a hot air device (7) is communicated with the other end of the hot air pipe (6); the lower end of the drying tower (1) is provided with a discharge hole (8), the side wall of the drying tower (1) is communicated with an air outlet pipe (9), the other end of the air outlet pipe (9) is communicated with a cyclone separator (10), and the cyclone separator (10) is communicated with a purifying device (11); the spraying device (2) comprises a rotary spray head (12), the rotary spray head (12) is spherical, and a plurality of spray holes (13) are formed in the peripheral side wall of the rotary spray head (12).

2. A molecular sieve spray drying apparatus according to claim 1, wherein: the feeding device (4) comprises a mixing box, and a feed inlet and a liquid adding port are formed in the mixing box; the feeding device (4) further comprises a material conveying pump arranged in the mixing box, and the outlet end of the material conveying pump is communicated with one end, located outside the drying tower (1), of the feeding pipe (3).

3. A molecular sieve spray drying apparatus according to claim 1, wherein: the inner wall of the air outlet ring (5) is provided with an inclined surface (14), a plurality of air outlet heads (15) communicated with the inner cavity of the air outlet ring (5) are fixedly arranged on the inclined surface (14), and the air outlet heads (15) face the direction of the spraying device (2).

4. A molecular sieve spray drying apparatus according to claim 1, wherein: the hot air device (7) comprises an induced draft fan and an air heater, the air heater is communicated with one end of the hot air pipe (6) positioned outside the drying tower (1), and the air heater is communicated with the induced draft fan through a connecting pipe.

5. A molecular sieve spray drying apparatus according to claim 1, wherein: the drying tower (1) comprises an upper cylinder part and a lower cone part (16), and the upper cylinder part and the lower cone part (16) are integrally formed; the connecting part of the upper cylinder part and the lower cone part (16) is fixedly provided with a hoop, and a plurality of supporting legs (17) for supporting the hoop are fixedly connected to the hoop.

6. The molecular sieve spray drying apparatus according to claim 5, wherein: the discharge hole (8) is arranged at the middle tip end position of the lower cone part (16).