CN215691690U

CN215691690U - Tail gas heat energy recovery device of spray drying tower

Info

Publication number: CN215691690U
Application number: CN202121334516.1U
Authority: CN
Inventors: 张俊平; 齐广波; 李荣辉; 曹少冲
Original assignee: Hebei Jinfeng Starch Sugar Alcohol Co ltd
Current assignee: Hebei Jinfeng Starch Sugar Alcohol Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-02-01
Anticipated expiration: 2031-06-16

Abstract

The utility model discloses a tail gas heat energy recovery device of a spray drying tower, in particular to the field of tail gas recovery of the spray drying tower, which comprises a drying tank body, wherein one side of the top of the drying tank body is fixedly connected with an air inlet pipe body, the air inlet pipe body comprises a first tail air pipe, one side of the bottom of the drying tank body is fixedly connected with a tail air pipe body, the tail air pipe body comprises a first air inlet pipe, the tops of the tail air pipe body and the air inlet pipe body are fixedly provided with a tail air inlet exchanger, the bottom inside one side of the tail air inlet exchanger is connected with a second air inlet pipe, and the middle part of the second air inlet pipe is provided with an air inlet steam exchanger. And after the temperature of the tail air is reduced, the generation of white fog in winter is reduced, the orderly proceeding of production order is ensured, and the safety performance is improved.

Description

Tail gas heat energy recovery device of spray drying tower

Technical Field

The utility model relates to the technical field of tail gas recovery of spray drying towers, in particular to a tail gas heat energy recovery device of a spray drying tower.

Background

The spray drying tower is generally used for drying biological, pesticide, medicine and food microorganisms, raw material liquid is separated into fog drops in an atomizer, hot air or other gas is in direct contact with the fog drops to obtain powder-shaped products, the spray drying technology is widely applied to the production process of detergents, dairy products, dehydrated food, dyes, cement and chemical fertilizers, the most common milk powder, instant coffee, instant food soup bases and the like are obtained from the spray drying process at present, the spray drying technology is only applied to the dairy industry in China at first and is subsequently applied to the industries of pharmacy, dyes, detergents and the like in succession, and the spray drying technology is very common in China at present. Especially in the pharmaceutical and ceramic industries. The application of spray drying is increasingly wide, the spray drying technology has extremely special application in the pharmaceutical industry, the process and the time from the traditional Chinese medicine extracting solution to the semi-finished product or the finished product of the preparation are greatly simplified and shortened, and the production efficiency and the quality of the medicine are improved.

Although the existing spray drying tower can obtain powder products with better drying effect, in the spray drying process, the spray drying tower heats inlet air from 30 ℃ to 170 ℃ through steam, and when the temperature of tail gas is discharged, the temperature is 80 ℃, the energy taken away by the tail gas cannot be utilized, so that the energy waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model provides a tail gas heat energy recovery device of a spray drying tower, and the technical problems to be solved by the utility model are as follows: the current spray drying tower is at spray drying's in-process, and spray drying tower passes through steam heating to 170 degrees centigrade by 30 degrees centigrade with the air inlet, and the temperature is 80 degrees centigrade when the tail gas temperature discharges, and the energy that the tail gas was taken away can not utilize, causes the waste of the energy.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a spout dry tower tail gas heat recovery unit, includes the drying tank body, one side fixedly connected with air inlet body at the drying tank body top, one side fixedly connected with tail-wind body of the drying tank body bottom, the top fixed mounting of tail-wind body and air inlet body has into tail-wind interchanger.

In a preferred embodiment, the air inlet pipe body comprises a first air inlet pipe, the bottom of the first air inlet pipe is connected with the top of the inside of one side of the inlet-outlet air exchanger, and the bottom of the inside of one side of the inlet-outlet air exchanger is connected with a second air inlet pipe.

In a preferred embodiment, the tail air pipe body comprises a first tail air pipe, the bottom of the first tail air pipe is connected with the top of the inside of the other side of the inlet-tail air exchanger, and the bottom of the inside of the other side of the inlet-tail air exchanger is connected with a second tail air pipe.

In a preferred embodiment, an air inlet steam exchanger is arranged in the middle of the second air inlet pipe, a steam end is arranged inside one side of the air inlet steam exchanger, and the bottom of the steam end is fixedly connected with the drying tank body.

In a preferred embodiment, the middle part of the drying tank body is provided with a detection table, the bottom of the drying tank body is fixedly connected with a plurality of supporting legs, and the bottoms of the supporting legs are fixedly connected with leg seats.

In a preferred embodiment, the air-to-tail heat exchanger is a light pipe heat exchanger.

The utility model has the technical effects and advantages that:

the utility model carries out heat exchange between the inlet air and the tail air by using the inlet air-tail air exchanger and the inlet air steam exchanger, can increase the temperature of the inlet air from 30 ℃ to 60 ℃, reduces the temperature of the tail air from 80 ℃ to 50 ℃, enters the inlet air from the bottom of the inlet air-tail air exchanger to the inside of the second air inlet pipe after finishing the heat exchange, heats the steam end positioned at the bottom of the drying tank body to 170 ℃ by using steam, further exchanges the heat generated by the steam end with the inlet air in the middle of the second air inlet pipe by using the inlet air steam exchanger, further improves the heat exchange degree, increases the temperature of the inlet air entering the drying tank body, heats the inlet air to 170 ℃ for production use by using the steam when the inlet air enters the inside of the drying tank body, not only saves the consumption of inlet air steam energy, and after the temperature of the tail air is reduced, the generation of white fog in winter is reduced, the orderly proceeding of production order is ensured, and the safety performance is improved.

Drawings

Fig. 1 is a schematic front view of the present invention.

Fig. 2 is a rear view structural diagram of the present invention.

Fig. 3 is a right-view structural diagram of the present invention.

Fig. 4 is a left side view structural diagram of the present invention.

Fig. 5 is a schematic bottom view of the present invention.

The reference signs are: 1. a first air inlet pipe; 2. a first exhaust duct; 3. a tail-air intake exchanger; 4. a second air inlet pipe; 5. an inlet air steam exchanger; 6. a second exhaust duct; 7. supporting legs; 8. a steam end; 9. drying the tank body; 10. a detection table; 11. a leg seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the tail gas heat energy recovery device for the spray drying tower comprises a drying tank body 9, an air inlet pipe body is fixedly connected to one side of the top of the drying tank body 9, a tail air pipe body is fixedly connected to one side of the bottom of the drying tank body 9, an inlet tail air exchanger 3 is fixedly mounted on the tops of the tail air pipe body and the air inlet pipe body, and the inlet tail air exchanger 3 is arranged to facilitate heat exchange between tail gas heat exhausted by a second tail air pipe 6 and air entering through a first tail air pipe 1, so that internal energy loss is reduced, heating efficiency is improved, and cost is reduced.

The air inlet body includes first exhaust air duct 1, the bottom of first exhaust air duct 1 is connected with the inside top in 3 one sides of into tail wind exchanger, the inside bottom in 3 one sides of into tail wind exchanger is connected with second air-supply line 4, the tail wind body includes first air-supply line 2, the bottom of first air-supply line 2 is connected with the inside top of 3 opposite sides of into tail wind exchanger, the inside bottom of 3 opposite sides of into tail wind exchanger is connected with second exhaust air duct 6, connect air inlet body and tail wind body through utilizing into tail wind exchanger 3, be favorable to carrying out thermal exchange and be convenient for when the inside bridging that appears of into tail wind exchanger 3, wash into tail wind exchanger 3.

The middle part of second air-supply line 4 is provided with air inlet steam exchanger 5, and the inside of air inlet steam exchanger 5 one side is provided with steam end 8, and the bottom and the dry tank body 9 of steam end 8 carry out fixed connection, and air inlet steam exchanger 5 is used for exchanging the energy in the steam end 8 for the air in the second air-supply line 4, is favorable to further improving the loss of the utilization ratio lowering energy of heat energy.

The middle part of the dry tank body 9 is provided with detects platform 10, detects platform 10 and is arranged in for daily work, and the staff can carry out careful inspection to the dry tank body, a plurality of supporting legs 7 of the bottom fixedly connected with of the dry tank body 9, the equal fixedly connected with leg rest 11 in bottom of a plurality of supporting legs 7, and leg rest 11 is used for increasing the area of contact of a plurality of supporting legs 7 and ground, improves the stability of the dry tank body 9.

The inlet and tail air exchanger 3 is a light pipe heat exchanger, and the inlet and tail air exchanger 3 is set to be the light pipe heat exchanger, so that the condition of hanging materials is not easy to occur in the working process.

The implementation scenario is specifically as follows:

in the using process of the utility model, the air inlet pipe body utilizes the first air inlet pipe 1 to supply air to the interior of the inlet-tail air exchanger 3, the tail air pipe body supplies air to the interior of the inlet-tail air exchanger 3 through the second tail air pipe 6, the inlet-tail air exchanger 3 can firstly exchange heat between the inlet air and the tail air to raise the temperature of the inlet air from 30 ℃ to 60 ℃ so as to lower the temperature of tail air discharge from 80 ℃ to 50 ℃, the inlet air enters the interior of the second air inlet pipe 4 from the bottom of the inlet-tail air exchanger 3 after heat exchange is finished, the steam end 8 at the bottom of the drying tank body 9 is heated to 170 ℃ by utilizing steam, and further, the heat generated by the steam end 8 is exchanged with the inlet air in the middle of the second air inlet pipe 4 by utilizing the inlet-air steam exchanger 5, so as to further improve the heat exchange degree, thus the inlet air temperature entering the interior of the drying tank body 9 is improved, when the inlet air enters the inside of the drying tank body 9, the inlet air is heated to 170 ℃ by using steam for production, and in addition, the inlet air and the tail air exchanger 3 can be cleaned when hanging materials appear in the inlet air and the tail air exchanger.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the utility model, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the utility model can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a spray drying tower tail gas heat recovery unit, includes the dry jar body (9), its characterized in that: one side fixedly connected with air inlet body at the top of the dry tank body (9), one side fixedly connected with tail wind body at the bottom of the dry tank body (9), the top fixedly mounted with air inlet exchanger (3) of tail wind body and air inlet body.

2. The tail gas heat energy recovery device of the spray drying tower as claimed in claim 1, characterized in that: the air inlet pipe body comprises a first air inlet pipe (1), the bottom of the first air inlet pipe (1) is connected with the top of one side of the tail air inlet exchanger (3), and the bottom of one side of the tail air inlet exchanger (3) is connected with a second air inlet pipe (4).

3. The tail gas heat energy recovery device of the spray drying tower as claimed in claim 2, characterized in that: the tail-air pipe body comprises a first tail-air pipe (2), the bottom of the first tail-air pipe (2) is connected with the top of the other side of the tail-air inlet exchanger (3), and the bottom of the other side of the tail-air inlet exchanger (3) is connected with a second tail-air pipe (6).

4. The tail gas heat energy recovery device of the spray drying tower as claimed in claim 2, characterized in that: the middle part of the second air inlet pipe (4) is provided with an air inlet steam exchanger (5), the inside of one side of the air inlet steam exchanger (5) is provided with a steam end (8), and the bottom of the steam end (8) is fixedly connected with a drying tank body (9).

5. The tail gas heat energy recovery device of the spray drying tower as claimed in claim 1, characterized in that: the middle part of the drying tank body (9) is provided with a detection table (10), the bottom of the drying tank body (9) is fixedly connected with a plurality of supporting legs (7) and a plurality of bottom equal fixedly connected with leg seats (11) of the supporting legs (7).

6. The tail gas heat energy recovery device of the spray drying tower as claimed in claim 1, characterized in that: the inlet and tail air exchanger (3) is a light pipe heat exchanger.