CN217817727U - Automatic auxiliary material adding device of fluidized bed dryer - Google Patents

Abstract

An automatic auxiliary material adding device of a fluidized bed dryer comprises an auxiliary material conveying device, a dust removing device and a drying device, wherein the auxiliary material conveying device is connected with the dust removing device, and the drying device is arranged below the dust removing device; the auxiliary material conveying device comprises a feeding station, a traveling crane arranged above the feeding station and a rotary valve connected with the lower part of the feeding station, wherein one end of the rotary valve is connected with a No. 1 Roots blower; the auxiliary material conveying device is conveyed into the drying device through a No. 1 Roots blower. The utility model provides an automatic auxiliary material device that adds of fluidized bed dryer has solved the technical problem of current extravagant material, loss productivity, through positive pressure fan with during isolation agent homodisperse arrives each orifice plate of each bed, isolation agent pass through behind the orifice plate many times a small amount with by dry material contact, reach the intensive mixing contact.

Description

Automatic auxiliary material adding device of fluidized bed dryer

Technical Field

The utility model relates to a fluidized bed dryer equipment field that is relevant, an automatic auxiliary material device that adds of fluidized bed dryer especially relate to.

Background

The fluidized bed dryer has simple structure, relatively large capacity and relatively low energy consumption, and is widely applied to the industries of chemical industry, medicine, food, grain processing and the like. In chemical production, two parts of flash drying and fluidized bed drying are commonly used in a matching way, so that the energy-saving effect is better. However, both the fluidized bed dryer and the flash dryer have certain dead angles, the dead angle regions can gradually retain and accumulate partial materials, and the materials in the dead angle regions are changed in form and even decomposed in the mass and heat transfer process of the materials and high-temperature media, so that the materials are wasted, and potential safety hazards such as ignition are easily caused.

There are two general solutions available today: one is that while the dryer is fed, proper amount of auxiliary materials, namely the anti-caking separant, are added, such as: talcum powder, calcium carbonate, white carbon black, calcium stearate and the like. The method can enhance the separation effect of the material in the bed to a certain extent, improve the fluidization state of the material and lead the volatile components of the material to be uniformly taken away by hot air. However, due to the short mixing time of the materials and the separant, the difference between the specific gravities of the materials and the separant and the like, the separant is not easy to coat on the surface of the materials under the condition of high-speed airflow, and particularly obvious in a continuous drying bed. Another method is to stop production in time and manually clean the materials in the bed when the impurities appear in the materials or the boiling height and the fluidization state of the bed are obviously changed. Compared with the prior art, the method is direct and thorough, but the capacity is lost due to frequent parking, and in addition, the manual cleaning has great potential safety hazard. The technical problem is solved by the scheme.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic auxiliary material device that adds of fluidized bed dryer has solved current extravagant material, the technical problem of loss productivity, the utility model discloses will originally change into evenly distributed to each bed by the disposable isolating agent of adding of flash dryer, reduce the possibility that the isolating agent is taken out by wind on the one hand, on the other hand, each bed is not directly added more than the air distribution board yet, but add the wind channel, through positive pressure fan with the isolating agent evenly dispersed to each orifice plate of each bed, the isolating agent passes through a small amount of after the orifice plate and contacts with the material of being dried, reach the intensive mixing contact, this invention is particularly useful for the heat-sensitive material of easy caking; in addition, because the fluidized state effect of the materials in the bed layer is obviously improved, the uniform mass and heat transfer between the materials and the dry hot air is facilitated, the drying time of the materials is shortened, and the steam consumption is relatively reduced.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

an automatic auxiliary material adding device of a fluidized bed dryer comprises an auxiliary material conveying device, a dust removing device and a drying device, wherein the auxiliary material conveying device is connected with the dust removing device, and the drying device is arranged below the dust removing device;

the auxiliary material conveying device comprises a feeding station, a traveling crane arranged above the feeding station and a rotary valve connected with the lower part of the feeding station, wherein one end of the rotary valve is connected with a No. 1 Roots blower;

and the auxiliary material conveying device is conveyed into the drying device through the No. 1 Roots blower.

Further, the dust removal device comprises a # 1 storage hopper, a dust removal fan arranged above the # 1 storage hopper and a weighing module arranged below the # 1 storage hopper, the weighing module is connected with the helical blade, and the lower part of the helical blade is connected with the drying device; wherein, the first and the second end of the pipe are connected with each other,

and the No. 1 Roots blower conveys auxiliary materials to the No. 1 storage hopper.

Further, drying device include with the 2# storage hopper that helical blade connects, the top of 2# storage hopper is equipped with the exhaust filter screen, and the below is connected with venturi, venturi one end is equipped with the switching-over valve.

Further, the reversing valve is connected with a 2# Roots blower.

Furthermore, four drying devices and four dust removing devices are respectively arranged.

The utility model discloses beneficial effect:

the invention has obvious use effect in the drying process of the chlorinated polyethylene products of the company. The chlorinated polyethylene product produced by the company belongs to a synthetic rubber product, is an elastomer which is particularly sensitive to temperature and pressure change, and particularly produces a rubber product with low hardness, the original caking amount in the drying system process accounts for about 0.5 percent of the production energy, the steam consumption is about 1.9 tons per ton of the product, the material leakage amount of the separant is about 2 tons per year, after the improvement, the current caking amount is reduced to 0.1 percent, the steam consumption is 1.2 tons per ton of the product, and the material leakage amount is about 0.5 tons per year.

In addition, after the small package is changed into the half-ton package, the manual feeding personnel are reduced into one person by two original people, the labor is saved, and the working intensity of workers is reduced. The period of manual bed cleaning is prolonged from 7 days to 20 days.

Drawings

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

FIG. 2 is an enlarged view of the structure of the present invention;

FIG. 3 is a view of the auxiliary material conveying device of the present invention;

FIG. 4 is a schematic view of the dust removing device of the present invention;

fig. 5 shows a drying device according to the present invention.

In the figure: 1. 1# Roots blower; 2. rotating the valve; 3. a feeding station; 4. driving a vehicle; 5. a reversing valve; 6. a dust removal fan; 7. a # 1 storage hopper; 8. a weighing module; 9. a helical blade; 10. an exhaust filter screen; 11. a # 2 storage hopper; 12. a venturi tube; 13. 2# Roots blower.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the drawings and specific embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, an automatic auxiliary material adding device for a fluidized bed dryer includes an auxiliary material conveying device, a dust removing device, and a drying device, wherein the auxiliary material conveying device is connected with the dust removing device, and the drying device is disposed below the dust removing device;

the auxiliary material conveying device comprises a feeding station 3, a travelling crane 4 arranged above the feeding station 3 and a rotary valve 2 connected with the lower part of the feeding station 3, wherein one end of the rotary valve 2 is connected with a No. 1 Roots blower 1;

the auxiliary material conveying device is conveyed into the drying device through a No. 1 Roots blower 1.

The dust removing device comprises a No. 1 storage hopper 7, a dust removing fan 6 arranged above the No. 1 storage hopper 7 and a weighing module 8 arranged below the No. 1 storage hopper 7, the weighing module 8 is connected with a helical blade 9, and the lower part of the helical blade 9 is connected with a drying device; wherein the content of the first and second substances,

the auxiliary material is transported to 1# storage hopper 7 by 1# Roots blower 1.

Drying device includes that the top of 2# storage hopper 11, the 2# storage hopper 11 of being connected with helical blade 9 is equipped with exhaust filter screen 10, and the below is connected with venturi 12, and venturi 12 one end is equipped with switching-over valve 5.

The reversing valve 5 is connected with a 2# Roots blower 13.

Four drying devices and four dust removing devices are respectively arranged.

The principle of the utility model is that: at first will change the original tiny packet of separant that adds from flash drying for half ton package, use driving 4 to add into throwing material station 3, carry the separant to the storage hopper of 1# storage hopper 7 and bed by roots's fan 1, control the ration through weighing module 8, solve dust collection and environmental protection problem through dust removal wind machine 6. After the release agent is quantitatively fed into the storage hopper, the release agent is distributed into the flash evaporation storage hopper 11 and the bed layer storage hopper through the helical blades 9. The isolating agent in the flash evaporation storage hopper 11 and the bed layer storage hopper is blown to the flash evaporation drying and the air duct of the bed layer respectively through the positive pressure wind of the 2# Roots blower 13 again, and the isolating agent is small in general particle diameter, is atomized again after the wind is dispersed to enter the air duct, and the air duct is internally provided with the isolating agent to be gradually and uniformly contacted with the material due to pressure difference between the air duct and the bed plate. The feeding amount of the flash drying and the feeding amount of each bed layer are adjusted and controlled by controlling the opening time of the flash reversing valve 5 and the reversing valve of each bed layer, and the time can be respectively set according to different material properties.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed. The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (5)

1. The utility model provides an automatic auxiliary material device that adds of fluidized bed dryer, includes auxiliary material conveyor, dust collector and drying device, its characterized in that: the auxiliary material conveying device is connected with the dust removing device, and the drying device is arranged below the dust removing device;

the auxiliary material conveying device comprises a feeding station (3), a travelling crane (4) arranged above the feeding station (3) and a rotary valve (2) connected with the lower part of the feeding station (3), wherein one end of the rotary valve (2) is connected with a 1# Roots blower (1);

the auxiliary material conveying device is conveyed into the drying device through the No. 1 Roots blower (1).

2. The automatic auxiliary material adding device of the fluidized bed dryer according to claim 1, wherein the dust removing device comprises a # 1 storage hopper (7), a dust removing fan (6) arranged above the # 1 storage hopper (7), and a weighing module (8) arranged below the # 1 storage hopper (7), the weighing module (8) is connected with a helical blade (9), and the lower part of the helical blade (9) is connected with the drying device;

and the No. 1 Roots blower (1) conveys auxiliary materials to the No. 1 storage hopper (7).

3. The automatic auxiliary material adding device of the fluidized bed dryer according to claim 2, wherein the drying device comprises a # 2 storage hopper (11) connected with the helical blade (9), an exhaust filter screen (10) is arranged above the # 2 storage hopper (11), the lower part of the # 2 storage hopper is connected with a venturi tube (12), and one end of the venturi tube (12) is provided with a reversing valve (5).

4. The automatic supplementary material adding device of a fluidized bed dryer according to claim 3, wherein the reversing valve (5) is connected with a 2# Roots blower (13).

5. The automatic auxiliary material adding device of the fluidized bed dryer according to claim 1, wherein four drying devices and four dust removing devices are provided.

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