CN106178563B - Device for taking away generated steam by using inert gas - Google Patents

Abstract

The invention discloses a device for taking away generated steam by using inert gas, which comprises a drying tower, wherein a support frame is arranged on the side surface of the drying tower, a blowing-off fan is arranged at a discharge port at the bottom of the drying tower, a dried material collecting box is arranged below the blowing-off fan, an air outlet pipe is arranged at the lower part of the side surface of the drying tower, a material liquid to be dried and processed is introduced by the device for taking away generated steam by using the inert gas, the material liquid is atomized under the action of pressure and a spray head, the atomized material liquid can be sprayed on the upper part of the drying tower more uniformly by rotating the spray head, a heated air flow is introduced by the side surface of the drying tower through an air inlet pipe, moisture in the material liquid is evaporated to obtain dried material powder, the downward inclination of the air inlet pipe can enable the air flow in the drying tower to form a spiral downward hot air flow, the material powder is not hardened on the inner wall, the moisture content and fineness are uniform.

Description

A device that uses inert gas to take away the generated steam

technical field

The invention relates to the technical field of dryers, in particular to a device that uses inert gas to take away generated steam.

Background technique

The existing spray dryer is a kind of equipment that uses inert gas to dry. It uses an atomizer to disperse the material liquid into droplets, and uses hot gas to dry the droplets to obtain products. The main working process is: fresh air from the outside passes through the air filter 1. The blower enters the air heater to increase the air temperature to about 160°C, and then sends it into the drying tower. Before entering the drying tower, the hot air passes through the uniform wind plate to make the hot air evenly distributed, prevent vortex, and avoid coke powder. In order to ensure the drying effect. The material liquid to be dried is pumped to the atomizer by the pressure pump, the material liquid is sprayed out in the form of mist and mixed with hot air, the material particles absorb heat, the water evaporates instantly, and the powder is formed and falls downward. After a period of constant speed drying, The water is further evaporated, and the coarse particles fall into the bottom of the drying tower and are discharged. The mixture of dried material fine powder and low-temperature humid air is separated by the cyclone separator, the waste air is discharged by the exhaust fan, and the dry fine powder product falls by the unloader. Continuous discharge, when the spray dryer is working, the wet material will stick to it after being thrown onto the wall of the drying tower, and the material sticking to the wall may burn or deteriorate due to staying on the inner wall for a long time, which will affect the quality of the product ; And the material after sticking to the wall will often agglomerate and fall into the discharge port at the bottom of the tower, so that the product sometimes cannot reach the specified moisture content and fineness. Therefore, we propose a device that uses inert gas to take away and generate steam.

Contents of the invention

The object of the present invention is to provide a device that uses inert gas to take away the generated vapor, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a device that uses inert gas to take away the generated steam, including a drying tower, the side of the drying tower is provided with a support frame, and the outlet at the bottom of the drying tower is provided with a shut-off fan , a dry material collection box is provided under the shut-off fan, an air outlet pipe is provided at the lower side of the drying tower, a pressure gauge is provided on the air outlet pipe, and an air inlet pipe is provided at the upper side of the drying tower. A heater is provided on the air inlet pipe, a fixed frame is provided on the left side of the bottom of the drying tower, a geared motor is provided on the fixed frame, and a circular through hole is provided in the middle of the upper surface of the drying tower. The circular through hole is provided with a bearing, the bearing is equipped with a main pipe, the lower end of the main pipe is provided with a shunt pipe, the lower surface of the shunt pipe is provided with a nozzle, and the upper end of the main pipe is provided with a rotary joint. The upper end of the joint is connected with the end of the feed pipe.

Preferably, the bottom of the drying tower is conical.

Preferably, the number of the air inlet pipes is four, the air inlet pipes are evenly distributed on the side of the drying tower, and the air inlet pipes are arranged with the end of the inner chamber inclined downward.

Preferably, a positioning plate is provided on the main pipe at the upper part of the bearing.

Preferably, the main pipe on the upper part of the positioning plate is provided with a gear sleeve, and the shaft end of the reduction motor is provided with a gear meshed with the gear sleeve.

Compared with the prior art, the beneficial effect of the present invention is: the device that uses inert gas to take away the generated steam introduces the feed liquid that needs to be dried and processed from the feed pipe, and atomizes the feed liquid under the action of the pressure and the nozzle, At the same time, the rotation of the nozzle can make the atomized material liquid spray on the upper part of the drying tower more evenly. The air inlet pipe is installed on the side to introduce the heated air flow, evaporate the moisture in the material liquid, and obtain dry material powder. The downward slanting setting can make the air flow in the drying tower form a spiral downward hot air flow, which will not make the material powder harden on the inner wall of the drying tower. The device that uses the inert gas to take away the generated steam is conducive to the occurrence of the drying reaction. Uniform volume and fineness.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

In the figure: 1 drying tower, 2 supporting frame, 3 shut-off fan, 4 dry material collection box, 5 air outlet pipe, 6 pressure gauge, 7 air inlet pipe, 8 heater, 9 fixed frame, 10 geared motor, 11 bearing, 12 main pipe, 13 shunt pipe, 14 nozzle, 15 positioning plate, 16 gear sleeve, 17 rotary joint, 18 feeding pipe.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1, the present invention provides a kind of technical proposal: a kind of device that utilizes inert gas to take away generated steam, comprises drying tower 1, and drying tower 1 is filled with the inert gas with certain heat, and the bottom of drying tower 1 is provided with cone-shaped , to facilitate material discharge, the side of the drying tower 1 is provided with a support frame 2, the discharge port at the bottom of the drying tower 1 is provided with a shut-off fan 3, a dry material collection box 4 is provided under the shut-off fan 3, and an air outlet pipe is provided at the lower part of the side of the drying tower 1 5. There is a pressure gauge 6 on the air outlet pipe 5 to detect pressure changes and adjust the internal pressure in time to ensure a stable and suitable internal pressure of the drying tower 1. The upper side of the drying tower 1 is provided with an air inlet pipe 7 and an air inlet pipe 7 The number is four, the air inlet pipe 7 is evenly distributed on the side of the drying tower 1, and the air inlet pipe 7 is inclined downward at the end of the inner cavity, and the air inlet pipe 7 on the outside of the drying tower 1 is provided with a heater 8. The air inlet pipe 7 is set on the side to introduce the heated air flow, evaporate the moisture in the material liquid, and obtain dry material powder. The downward inclined setting of the air inlet pipe 7 can make the air flow in the drying tower 1 form a spiral downward The hot air flow will not cause the material powder to be hardened on the inner wall of the drying tower 1. A fixed frame 9 is provided on the left side of the bottom of the drying tower 1. A deceleration motor 10 is provided on the fixed frame 9. A circle is provided in the middle of the upper surface of the drying tower 1. The circular through hole is provided with a bearing 11, the bearing 11 is equipped with a main pipe 12, the lower end of the main pipe 12 is provided with a shunt pipe 13, the main pipe 12 on the upper part of the bearing 11 is provided with a positioning plate 15, and the main pipe on the upper part of the positioning plate 15 12 is provided with a gear sleeve 16, the shaft end of the reduction motor 10 is provided with a gear meshed with the gear sleeve 16, the lower surface of the shunt pipe 13 is provided with a nozzle 14, and the upper end of the main pipe 12 is provided with a rotary joint 17. The upper end is connected to the end of the feed pipe 18, and the feed liquid that needs to be dried is introduced from the feed pipe 18, and the feed liquid is atomized under the action of the external pressure and the nozzle 14, and the rotation of the nozzle 14 can make the atomized material The liquid is more evenly sprayed on the upper part of the inner cavity of the drying tower 1, and the device which uses the inert gas to take away the generated steam is beneficial to the occurrence of the drying reaction, and the moisture content and fineness are uniform.

Working principle: The material liquid is sprayed out in the form of mist and mixed with hot inert gas. The material particles absorb heat, and the water evaporates instantly, forming powder and falling downward. After a period of constant speed drying, the water is further evaporated, and the coarse particles fall into the drying tower 1 The mixture of the dried material fine powder and low-temperature humid air flows into the next process through the air outlet pipe 5, and the dry fine powder product falls and is continuously discharged from the shut-off fan 3, and the feed liquid is introduced from the feed pipe 18. Under the action of pressure and nozzle 14, the material liquid is atomized. At the same time, the rotation of nozzle 14 can make the atomized material liquid spray on the upper part of the drying tower 1 more evenly. The downward sloping setting of 7 can make the air flow in the drying tower form a spiral downward hot air flow, so that the material powder will not be hardened on the inner wall of the drying tower 1.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (2)

1. a kind of device that generation steam is taken away using inert gas, including drying tower（1）, it is characterised in that：The drying tower （1）Side be provided with support frame（2）, the drying tower（1）Bottom discharge mouth is provided with Blowing stopper（3）, the Blowing stopper（3）Lower section Provided with siccative collecting box（4）, the drying tower（1）Side lower is provided with discharge pipe（5）, the discharge pipe（5）It is provided with pressure Table（6）, the drying tower（1）Side surface upper part be provided with blast pipe（7）, the drying tower（1）The blast pipe in outside（7）It is provided with Heater（8）, the drying tower（1）Bottom left be provided with fixed mount（9）, the fixed mount（9）It is provided with reducing motor （10）, the drying tower（1）Upper surface middle part be provided with manhole, is provided with bearing in the manhole（11）, the axle Hold（11）Built with supervisor（12）, the supervisor（12）Lower end be provided with isocon（13）, the isocon（13）Lower surface Provided with shower nozzle（14）, the supervisor（12）Upper end be provided with swivel joint（17）, the swivel joint（17）Upper end and charging Pipe（18）End connection；The blast pipe（7）Quantity be four, the blast pipe（7）It is evenly distributed in drying tower（1） Side, and blast pipe（7）It is obliquely installed for cavity ends are downward；The bearing（11）The supervisor on top（12）It is fixed to be provided with Position plate（15）, the location-plate（15）The supervisor on top（12）It is provided with geared sleeve（16）, the reducing motor（10）Shaft end It is provided with and geared sleeve（16）The gear being meshed.

A kind of 2. device that generation steam is taken away using inert gas according to claim 1, it is characterised in that：It is described dry Dry tower（1）Bottom be provided with it is tapered.