Improved dryer for blast heat dryer

Abstract

The utility model discloses an improved dryer for a blast heat dryer, which comprises a mounting bracket and two drying tanks fixedly arranged on the mounting bracket, drying components used for absorbing moisture are fixedly arranged in the two drying tanks, one end of each drying tank is fixedly provided with a tank sealing cover, and the other end of each drying tank is fixedly provided with a tank sealing cover. One end of each of the two tank sealing covers is fixedly communicated with an air inlet pipe, a first electromagnetic valve is fixedly arranged in the middle of each air inlet pipe, a three-way air guide pipe is fixedly arranged between the two air inlet pipes, and a moisture removal assembly used for moisture removal of a drying agent is fixedly arranged between the two tank sealing covers. The double-drying-tank type design is adopted, the two drying tanks work alternately, one drying tank conducts ventilation drying, the other drying tank conducts heating dehumidification, air circulation is stable, drying agents can be repeatedly used, the drying effect and drying efficiency can be improved under the condition that the air blowing drying machine works uninterruptedly, maintenance and management are convenient, the failure rate is low, and the replacement and maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of air blast heat drying machines, in particular to an improved dryer for air blast heat drying machines. Background Art

[0002] A blast dryer is a mechanical device that uses heat energy to reduce the moisture content of materials. It vaporizes the moisture or other volatile liquid components in the materials by heating to obtain solid materials with a specified moisture content. At present, the dryer commonly used in blast heat dryers is a hygroscopic dryer. By installing a desiccant in the drying box, the desiccant is used to absorb the moisture in the gas blown by the blower, thereby achieving the purpose of dehumidification and drying. For example, an improved blast heat dryer dryer with application number CN202220642834.2 includes a shell with an open structure at the upper end, an air inlet flange pipe connected to the top of the left end of the shell, an air outlet flange pipe connected to the top of the right end of the shell, a drying medium arranged on the inner side of the shell, and a shell cover detachably installed on the upper end of the shell, and a plurality of lower plug-in slide buckles are integrally formed at equal distances on the inner side of the shell; the above common types of blast heat dryers have the following shortcomings in actual applications:

[0003] After working for a period of time, the desiccant will reach a saturated state, and the moisture absorption effect will be significantly reduced. The staff needs to replace the desiccant or dehumidify the dryer before carrying out subsequent drying work. Frequent replacement and maintenance will result in low dehumidification and drying efficiency. Utility Model Content

[0004] The utility model aims to provide an improved dryer for a blast heat dryer to solve the problems of frequent replacement and maintenance and low dehumidification and drying efficiency of the existing blast dryer proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved dryer for a blast heat dryer, comprising a mounting bracket and two drying tanks fixedly mounted on the mounting bracket, a drying component for absorbing moisture fixedly mounted inside the two drying tanks, a tank cover fixedly mounted at one end of the two drying tanks, one end of the two tank covers fixedly connected to an air intake pipe, a first solenoid valve fixedly mounted at the middle of the air intake pipe, a three-way air guide pipe fixedly mounted between the two air intake pipes, a dehumidification component for dehumidifying desiccant fixedly mounted between the two tank covers, an exhaust pipe fixedly mounted at the other end of the two drying tanks, a check valve fixedly mounted at the middle of the two exhaust pipes, a five-way pipe fixedly mounted between the two exhaust pipes, and diversion components for guiding dry gas fixedly mounted at both ends of the five-way pipe.

[0006] Preferably, the drying component includes a desiccant limiting frame and a plurality of gas drying pipelines penetrating the desiccant limiting frame, the interior of the desiccant limiting frame is filled with porous silica gel desiccant particles, and a plurality of electric heating tubes are fixedly installed on the top of the inner wall of the desiccant limiting frame; the moisture absorption and drying efficiency is high.

[0007] Preferably, the gas drying pipeline comprises a drying conduit, a surface of which is provided with a plurality of evenly distributed pores, so that the gas flows smoothly.

[0008] Preferably, a timer is fixedly mounted on the surface of the mounting bracket, and the electric heating tube and the first solenoid valve are electrically connected to the air blast heat dryer through the timer.

[0009] Preferably, the dehumidification component includes a dehumidification main pipe and two dehumidification branch pipes fixedly connected to the bottom of the dehumidification main pipe, a second solenoid valve is fixedly installed in the middle of the two dehumidification branch pipes, one end of the two dehumidification branch pipes is respectively fixedly connected to one side of the two tank covers, and the two second solenoid valves are electrically connected to the timer; the dehumidification is stable and efficient, and the drying component can be reused many times.

[0010] Preferably, the diversion component includes a guide tube and an electromagnetic flow control valve fixedly installed on the guide tube, one end of the guide tube is fixedly connected to the drying tank, and the electromagnetic flow control valve is electrically connected to the timer; part of the dried gas can be used for dehumidification to improve the efficiency of the dryer.

[0011] Preferably, one side of the five-way pipe is fixedly connected to a guide pipe, and one end of the guide pipe is fixedly provided with an air outlet flange; this facilitates the circulation of air and improves the drying efficiency of the blower dryer.

[0012] Preferably, an air inlet flange is fixedly mounted on one end of the three-way air duct, so as to facilitate the installation of the dryer on the blower.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The blower dryer adopts a double drying tank design. The two drying tanks work alternately, one for ventilation and drying, and the other for heating and dehumidification. The air circulation is stable and the desiccant can be reused many times. Under the condition of uninterrupted operation of the blower dryer, the drying effect and drying efficiency can be improved. It is easy to maintain and manage, with a low failure rate and low replacement and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the dryer of the utility model;

[0016] Figure 2 This is a front cross-sectional view of the dryer of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the drying tank of the utility model;

[0018] Figure 4 It is a front cross-sectional view of the drying tank of the utility model.

[0019] In the figure: 1. drying tank; 2. tank cover; 3. air inlet pipe; 4. first solenoid valve; 5. three-way air duct; 6. air inlet flange; 7. dehumidification main pipe; 8. second solenoid valve; 9. dehumidification branch pipe; 10. exhaust pipe; 11. check valve; 12. five-way pipe; 13. flow guide pipe; 14. electromagnetic flow control valve; 15. air outlet flange; 16. desiccant limit rack; 17. porous silica gel desiccant particles; 18. drying duct; 19. air hole; 20. electric heating tube; 21. mounting bracket; 22. timer; 23. exhaust pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-4 The utility model provides an improved type of dryer for a hot air drying machine, comprising a mounting bracket 21 and two drying tanks 1 fixedly mounted on the mounting bracket 21, wherein a drying assembly for absorbing moisture is fixedly mounted inside the two drying tanks 1, a tank sealing cover 2 is fixedly mounted at one end of the two drying tanks 1, and an air inlet pipe 3 is fixedly connected to one end of the two tank sealing covers 2, wherein a first solenoid valve 4 is fixedly mounted in the middle of the air inlet pipe 3, a three-way air guide pipe 5 is fixedly mounted between the two air inlet pipes 3, and a three-way air guide pipe 5 is fixedly mounted between the two tank sealing covers 2. A dehumidification assembly for dehumidifying the desiccant is installed, the other ends of the two drying tanks 1 are fixedly connected with an exhaust pipe 10, the middle parts of the two exhaust pipes 10 are fixedly installed with a check valve 11, a five-way pipe 12 is fixedly arranged between the two exhaust pipes 10, both ends of the five-way pipe 12 are fixedly connected with a diversion assembly for guiding the dry gas, one side of the five-way pipe 12 is fixedly connected with a guide pipe 23, one end of the guide pipe 23 is fixedly provided with an outlet flange 15, and one end of the three-way air guide pipe 5 is fixedly installed with an inlet flange 6;

[0022] When in use, the three-way air duct 5 is connected to the air outlet of the blast heat dryer through the air inlet flange 6, and the exhaust pipe 23 is connected to the drying box of the blast heat dryer through the air outlet flange 15. Driven by the blower, the air flow containing moisture in the drying box will enter the air inlet pipe 3 through the three-way air duct 5, and then enter the drying tank 1. After the gas absorbs moisture through the drying component, it flows out from the exhaust pipe 10 and enters the five-way pipe 12, and then flows back to the drying box through the exhaust pipe 23, thereby realizing the circulation drying of the gas in the drying box, and the drying efficiency is remarkable.

[0023] See also Figure 1 , Figure 3 and Figure 4 Further, the drying component includes a desiccant limit frame 16 and a plurality of gas drying pipelines penetrating the desiccant limit frame 16, the interior of the desiccant limit frame 16 is filled with porous silica gel desiccant particles 17, a plurality of electric heating tubes 20 are fixedly installed on the top of the inner wall of the desiccant limit frame 16, the gas drying pipeline includes a drying conduit 18, a plurality of evenly distributed air holes 19 are opened on the surface of the drying conduit 18, a timer 22 is fixedly installed on the surface of the mounting bracket 21, and the electric heating tube 20 and the first solenoid valve 4 are electrically connected to the blast heat dryer through the timer 22;

[0024] When in use, after the hot and humid air flow containing moisture enters the drying tank 1, it will flow into the drying duct 18 and circulate along the drying duct 18. Part of the air flow will directly penetrate into the porous silica gel desiccant particles 17, and the porous silica gel desiccant particles 17 will absorb moisture in the hot and humid air. The surface of the drying duct 18 is provided with pores 19 to facilitate air flow. The function of the drying duct 18 is to reduce the resistance of the air flow and improve the smoothness of the air flow.

[0025] See also Figure 1 , Figure 2 and Figure 3 Further, the dehumidification component includes a dehumidification main pipe 7 and two dehumidification branch pipes 9 fixedly connected to the bottom of the dehumidification main pipe 7, and the middle of the two dehumidification branch pipes 9 are fixedly installed with second solenoid valves 8, one end of the two dehumidification branch pipes 9 is fixedly connected to one side of the two tank covers 2, and the two second solenoid valves 8 are electrically connected to the timer 22;

[0026] During use, one drying tank 1 is in the process of ventilation and moisture absorption, while the other drying tank 1 is dehumidifying. During dehumidification, the second solenoid valve 8 on the corresponding dehumidification branch pipe 9 will be opened, and the electric heating tube 20 will heat the porous silica gel desiccant particles 17 in the dehumidification drying tank 1. The water vapor follows the air flow through the dehumidification branch pipe 9 into the dehumidification main pipe 7, and is finally discharged from the blast heat dryer, so that the porous silica gel desiccant particles 17 can be reused multiple times without the need for staff to frequently replace the drying structure.

[0027] See also Figure 1 and Figure 2 Further, the flow diversion component includes a flow guide tube 13 and an electromagnetic flow control valve 14 fixedly installed on the flow guide tube 13, one end of the flow guide tube 13 is fixedly connected to the drying tank 1, and the electromagnetic flow control valve 14 is electrically connected to the timer 22;

[0028] When in use, part of the dry gas after absorbing moisture in the drying tank 1 during the dehumidification process will enter the dehumidification drying tank 1 through the guide pipe 13, and the reversely flowing dry gas will carry the moisture adsorbed by the porous silica gel desiccant particles 17 in the dehumidification drying tank 1 and enter the dehumidification branch pipe 9, thereby improving the dehumidification efficiency.

[0029] When the embodiment of the present application is in use: when the upper drying tank 1 is in the process of absorbing moisture and the lower drying tank 1 is in the process of dehumidifying, the upper second solenoid valve 8 is closed, the lower second solenoid valve 8 is opened, and the blower blows gas into the three-way air duct 5. Since the lower first solenoid valve 4 is closed and the upper first solenoid valve 4 is opened at this time, the airflow to be dried will enter the drying tank 1 in the process of absorbing moisture through the upper air inlet pipe 3. After the humid hot airflow containing moisture enters the drying tank 1, it will flow into the drying duct 18 and circulate along the drying duct 18. Part of the airflow will directly penetrate into the porous silica gel desiccant particles 17, and absorb moisture in the humid hot air through the porous silica gel desiccant particles 17. The dried air enters the five-way pipe 12 through the exhaust pipe 10. During this process, the upper electromagnetic flow control valve 14 is closed and the lower electromagnetic flow control valve 14 is opened. Most of the airflow will directly re-enter the drying box of the dryer through the exhaust pipe 23 to realize the circulation of the gas. A small part of the gas enters the drying tank 1 below which is in the dehumidification process through the guide pipe 13. The dry gas circulates in the lower drying tank 1 in reverse, and the porous silica gel desiccant particles 17 are heated by the electric heating tube 20, so that the moisture enters the dehumidification main pipe 7 through the dehumidification branch pipe 9. Conversely, the two drying tanks 1 can work alternately, one for absorbing moisture and drying, and the other for dehumidifying. The desiccant can be reused many times to reduce the maintenance cost.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An improved type of dryer for a hot air drying machine, comprising a mounting bracket (21) and two drying tanks (1) fixedly mounted on the mounting bracket (21), characterized in that: A drying component for absorbing moisture is fixedly installed inside the two drying tanks (1), a tank cover (2) is fixedly installed at one end of the two drying tanks (1), one end of the two tank covers (2) is fixedly connected to an air intake pipe (3), a first solenoid valve (4) is fixedly installed in the middle of the air intake pipe (3), a three-way air guide pipe (5) is fixedly installed between the two air intake pipes (3), a dehumidification component for dehumidifying the desiccant is fixedly installed between the two tank covers (2), the other ends of the two drying tanks (1) are fixedly connected to an exhaust pipe (10), a check valve (11) is fixedly installed in the middle of the two exhaust pipes (10), a five-way pipe (12) is fixedly installed between the two exhaust pipes (10), and both ends of the five-way pipe (12) are fixedly connected to a diversion component for guiding the dry gas.

2. The improved type of dryer for hot air drying machine according to claim 1, characterized in that: The drying component comprises a desiccant limiting frame (16) and a plurality of gas drying pipelines penetrating the desiccant limiting frame (16); the interior of the desiccant limiting frame (16) is filled with porous silica gel desiccant particles (17); and a plurality of electric heating tubes (20) are fixedly mounted on the top of the inner wall of the desiccant limiting frame (16).

3. The improved type of dryer for hot air drying machine according to claim 2, characterized in that: The gas drying pipeline comprises a drying conduit (18), and a surface of the drying conduit (18) is provided with a plurality of evenly distributed air holes (19).

4. The improved type of dryer for hot air drying machine according to claim 2, characterized in that: A timer (22) is fixedly mounted on the surface of the mounting bracket (21), and the electric heating pipe (20) and the first solenoid valve (4) are both electrically connected to the air-blast heat dryer via the timer (22).

5. The improved type of dryer for hot air drying machine according to claim 4, characterized in that: The dehumidification component comprises a dehumidification main pipe (7) and two dehumidification branch pipes (9) fixedly connected to the bottom of the dehumidification main pipe (7), a second solenoid valve (8) is fixedly installed in the middle of the two dehumidification branch pipes (9), one end of the two dehumidification branch pipes (9) is fixedly connected to one side of two tank covers (2), and the two second solenoid valves (8) are electrically connected to the timer (22).

6. The improved type of dryer for hot air drying machine according to claim 4, characterized in that: The flow diversion component comprises a flow guide tube (13) and an electromagnetic flow control valve (14) fixedly mounted on the flow guide tube (13); one end of the flow guide tube (13) is fixedly connected to the drying tank (1); and the electromagnetic flow control valve (14) is electrically connected to a timer (22).

7. The improved type of dryer for hot air drying machine according to claim 1, characterized in that: One side of the five-way pipe (12) is fixedly connected to a guide pipe (23), and one end of the guide pipe (23) is fixedly provided with an outlet flange (15).

8. The improved type of dryer for hot air drying machine according to claim 7, characterized in that: An air inlet flange (6) is fixedly mounted on one end of the three-way air guide pipe (5).

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