Hot air circulation device for biomass drying heat supply

Abstract

The utility model relates to the technical field of biomass drying, in particular to a hot air circulation device for biomass drying heat supply, which comprises a supporting seat, a support is fixedly connected to the outer wall of one side of the top end of the supporting seat, a tank is fixedly connected to the inner wall of the support, and a hot air blower is mounted on the outer wall of the other side of the top end of the supporting seat. A negative pressure fan is mounted on the outer wall of the top end of the tank body; the dehumidification mechanism is arranged on the outer wall of the tank body; the dehumidification mechanism comprises a box body fixedly connected to the outer wall of the tank body, an air inlet hole is formed in the outer wall of the top end of the box body, and an air outlet hole is formed in the outer wall of the bottom of the box body; according to the biomass drying device, air carrying moisture is exhausted and then guided into the box body, after the moisture is absorbed, the air carrying heat is heated by the air heater and enters the tank body again to dry biomass, hot air circulation is formed, the motor controls the stirring frame to enable the air to make more uniform contact with a drying agent, and the biomass drying efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of biomass drying, and specifically relates to a hot air circulating device for biomass drying and heat supply. BACKGROUND

[0002] Biomass particles are formed by cold-state densification of raw materials such as pulverized biomass straw and forestry waste under normal temperature conditions using a pressure roller and a ring mold. Product drying is one of the main technologies in product storage and processing. Through drying technology, most of the water in the product is removed to reduce the water activity, inhibit the growth and reproduction of microorganisms, and prolong the storage period of the product.

[0003] According to the patent with the patent number CN221259265U, a biomass particle production drying device is disclosed. The device can guide the biomass particles to be treated into the tank through the feed inlet, then connect the external power supply, make the hot air blower guide the high-speed hot air into the spray pipe, then blow the hot air to the biomass particle material through the spray pipe, and the material is in a boiling fluidization state under the action of the wind force, so that the surface of the particle is in full contact with the hot air. At the same time, the negative pressure blower works to guide the air inside the tank, thereby discharging the moisture. This can make the surface of the material particles fully contact with the hot air, and greatly improve the drying efficiency of the material.

[0004] Based on the above search and the existing technology, it is found that the above-mentioned patent has some defects. The air output by the negative pressure blower is directly discharged, although it can discharge the moisture in time, but the discharged air still contains a lot of heat, which leads to waste of energy and affects the working environment. It cannot form a hot air circulation for reuse, and the efficiency of biomass drying is reduced. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a hot air circulating device for biomass drying and heat supply to solve the problems in the background art.

[0006] The technical scheme of the utility model is as follows: a hot air circulating device for biomass drying and heat supply, comprising a support seat, a support is fixedly connected to one side of the top end of the support seat, a tank is fixedly connected to the inner wall of the support, a hot air blower is installed on the other side of the top end of the support seat, a negative pressure blower is installed on the top end of the tank, and the device further comprises:

[0007] A dehumidification mechanism is arranged on the outer wall of the tank.

[0008] The dehumidification mechanism includes a box body fixedly connected to the outer wall of the tank body, an air inlet hole is formed in the top end outer wall of the box body, an air outlet hole is formed in the bottom outer wall of the box body, a circulating pipe is inserted into the inner wall of the air inlet hole, an air inlet pipe is inserted into the inner wall of the air outlet hole, a mounting bracket is fixedly connected to the top inner wall of the box body, a motor is mounted on the bottom end outer wall of the mounting bracket, a stirring frame is connected to one end of the output shaft of the motor through a shaft coupling, a fixing frame is fixedly connected to one side inner wall of the box body, a sliding rail is arranged on one side outer wall of the fixing frame, an installation groove is formed in the outer wall of the box body, a rotating shaft is rotatably arranged in the inner wall of the installation groove, an annular frame is fixedly connected to the outer wall of the rotating shaft, clamping grooves are formed in the top end outer walls of the two sides of the annular frame, and a placing frame is clamped in the clamping grooves.

[0009] Preferably, the annular frame is slidingly connected to the inner walls of the sliding rail and the installation groove, the inner wall of the placing frame is provided with a drying agent, the stirring frame is located below the circulating pipe, and magnetic blocks are mounted on the two side inner walls of the top of the annular frame.

[0010] Preferably, a guide plate is fixedly connected to the bottom inner wall of the box body, the guide plate is arranged in an inclined manner, and the guide plate is positionally matched with the air inlet pipe.

[0011] Preferably, a connecting pipe one is inserted into the input end of the negative pressure fan, the connecting pipe one is inserted into the top inner wall of the tank body, and an air inlet pipe is inserted into the output end of the hot air fan.

[0012] Preferably, an annular groove is formed in the bottom outer wall of the tank body, an annular pipe is fixedly connected to the inner wall of the annular groove, and the air inlet pipe is in communication with the annular pipe.

[0013] Preferably, a plurality of air injection pipes are arranged on the outer wall of the annular pipe, the air injection pipes are arranged in an annular array, and a mesh cover is threadedly connected to the outer wall of the air injection pipe.

[0014] Compared with the prior art, the biomass drying and heat supply hot air circulation device has the following improvements and advantages:

[0015] One: the utility model discloses a tank body, box, hot -blast machine, motor, stirring frame, annular frame and rack are set up, air restores dry and returns to hot -blast machine through air inlet pipe again, is reentered into tank body after being heated again, forms the hot -blast circulation and dries the biomass material, and the motor control of installation frame sets up the rotation of stirring frame, and the air that enters can spread, is treated with dry agent contact evenly, one -sided dry agent saturation can manually push annular frame rotation, and the rack of the other side that places dry agent enters the box and is replaced, keeps dry effect, and the air that carries moisture is introduced into the box after discharging, carries the air of heat after the moisture is absorbed and will pass through hot -blast machine heating and enters tank body again and dries the biomass, forms the hot -blast circulation, and the motor control stirring frame makes air more evenly with dry agent contact, improves the efficiency of biomass drying.

[0016] Second: the utility model discloses a magnetic block, deflector, air jet pipe and mesh enclosure are set up, annular frame sets up magnetic block, just can be with box adsorption limit after each rotation, sets up deflector at the bottom of box, and the dry air is guided, and the air jet pipe on annular pipe evenly sprays hot -blast and dries the biomass material, and the air jet pipe outer wall sets up mesh enclosure, prevents material and blocks air jet pipe, and the practicality of biomass drying heat -supply hot -blast circulation device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be explained further below in combination with the drawings and examples:

[0018] Figure 1 It is the box connection structure section view schematic drawing of the utility model;

[0019] Figure 2 It is the utility model's Figure 1 A structure amplification schematic diagram in;

[0020] Figure 3 It is the annular frame schematic diagram of the utility model;

[0021] Figure 4 It is the annular pipe schematic diagram of the utility model.

[0022] BRIEF DESCRIPTION OF DRAWINGS:

[0023] 1, support seat, 2, support, 3, tank body, 4, negative pressure fan, 5, circulating pipe, 6, box, 7, air inlet pipe, 8, hot -blast machine, 9, annular pipe, 10, installation frame, 11, stirring frame, 12, motor, 13, fixed frame, 14, annular frame, 15, deflector, 16, magnetic block, 17, rack, 18, air jet pipe, 19, mesh enclosure. DETAILED DESCRIPTION

[0024] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0025] This utility model provides an improved hot air circulation device for biomass drying and heating. The technical solution of this utility model is as follows:

[0026] like Figures 1-4 As shown, a hot air circulation device for biomass drying and heating includes a support base 1, a bracket 2 fixedly connected to one outer wall of the top of the support base 1, a tank 3 fixedly connected to the inner wall of the bracket 2, a hot air blower 8 installed on the other outer wall of the top of the support base 1, and a negative pressure blower 4 installed on the top outer wall of the tank 3.

[0027] Dehumidification mechanism, which is located on the outer wall of tank 3;

[0028] The dehumidification mechanism includes a box 6 fixedly connected to the outer wall of the tank 3. The top outer wall of the box 6 has an air inlet, and the bottom outer wall of the box 6 has an air outlet. A circulation pipe 5 is inserted into the inner wall of the air inlet, and an air inlet pipe 7 is inserted into the inner wall of the air outlet. A mounting bracket 10 is fixedly connected to the top inner wall of the box 6. A motor 12 is mounted on the bottom outer wall of the mounting bracket 10. One end of the output shaft of the motor 12 is connected to a stirring frame 11 via a coupling. A fixing bracket 13 is fixedly connected to one side inner wall of the box 6. A slide rail is provided on one side outer wall of the fixing bracket 13. An installation groove is provided on the outer wall of the box 6. A rotating shaft is rotatably provided on the inner wall of the installation groove. A ring frame 14 is fixedly connected to the outer wall of the rotating shaft. Slots are provided on both sides of the top of the ring frame 14. A placement rack 17 is engaged on the inner wall of the slots.

[0029] Furthermore, the annular frame 14 is slidably connected to the slide rail and the inner wall of the mounting groove. The inner wall of the placement rack 17 is provided with a desiccant. The stirring rack 11 is located below the circulation pipe 5. Magnetic blocks 16 are installed on the inner walls of both sides of the top of the annular frame 14. A guide plate 15 is fixedly connected to the bottom inner wall of the box 6. The guide plate 15 is inclined and its position is adapted to the air intake pipe 7.

[0030] Furthermore, the input end of the negative pressure fan 4 is connected to a connecting pipe 1, which is inserted into the inner wall of the top of the tank 3. The output end of the hot air fan 8 is connected to an air inlet pipe. An annular groove is opened on the outer wall of the bottom of the tank 3. An annular pipe 9 is fixedly connected to the inner wall of the annular groove. The air inlet pipe is connected to the annular pipe 9. Several jet pipes 18 are provided on the outer wall of the annular pipe 9. The jet pipes 18 are distributed in a ring array. A mesh cover 19 is connected to the outer wall of the jet pipes 18 by threads.

[0031] Working Principle: During the biomass drying process, biomass material is fed into tank 3 through the feed pipe. Hot air generated by hot air blower 8 is input into annular pipe 9 and then sprayed out through jet pipe 18 to uniformly dry the material. The water vapor generated during drying is carried by the flowing air and enters the chamber 6 through circulation pipe 5 under the action of negative pressure fan 4. At this time, desiccant is placed in the placement rack 17 inside the annular frame 14. The placement rack 17 on one side is located inside the chamber 6. After the air carrying water vapor enters and passes through the placement rack 17, the water vapor is absorbed by the desiccant. The air is dried again and returns to hot air blower 8 through air inlet pipe 7. After being reheated, it re-enters tank 3, forming a hot air circulation. The ring 14 dries the biomass material, and the motor 12 on the mounting frame 10 controls the rotation of the stirring frame 11, so that the incoming air can diffuse and be evenly contacted and treated with the desiccant. After the desiccant on one side is saturated, the ring frame 14 can be manually pushed to rotate, so that the desiccant placement frame 17 on the other side can enter the box 6 for replacement, maintaining the drying effect. The ring frame 14 is equipped with a magnetic block 16, which can be attracted and limited by the box 6 after each rotation. A guide plate 15 is set at the bottom of the box 6 to guide the dried air. The jet pipe 18 on the ring pipe 9 evenly sprays hot air to dry the biomass material. A mesh cover 19 is set on the outer wall of the jet pipe 18 to prevent the material from clogging the jet pipe 18.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A hot air circulation device for biomass drying and heating, comprising a support base (1), a bracket (2) fixedly connected to one outer wall of the top of the support base (1), a tank (3) fixedly connected to the inner wall of the bracket (2), a hot air blower (8) installed on the other outer wall of the top of the support base (1), and a negative pressure blower (4) installed on the top outer wall of the tank (3), characterized in that: Also includes; A dehumidification mechanism is provided on the outer wall of the tank (3); The dehumidification mechanism includes a box (6) fixedly connected to the outer wall of the tank (3). An air inlet is provided on the top outer wall of the box (6), and an air outlet is provided on the bottom outer wall of the box (6). A circulation pipe (5) is inserted into the inner wall of the air inlet, and an air inlet pipe (7) is inserted into the inner wall of the air outlet. A mounting bracket (10) is fixedly connected to the top inner wall of the box (6), and a motor (12) is mounted on the bottom outer wall of the mounting bracket (10). The motor (12) outputs... One end of the output shaft is connected to a stirring rack (11) via a coupling. A fixing frame (13) is fixedly connected to one side of the inner wall of the box (6). A slide rail is provided on one side of the outer wall of the fixing frame (13). An installation groove is provided on the outer wall of the box (6). A rotating shaft is rotatably provided on the inner wall of the installation groove. An annular frame (14) is fixedly connected to the outer wall of the rotating shaft. A slot is provided on both sides of the top of the annular frame (14). A placement rack (17) is engaged on the inner wall of the slot.

2. The hot air circulation device for biomass drying and heating according to claim 1, characterized in that: The annular frame (14) is slidably connected to the slide rail and the inner wall of the mounting groove. The inner wall of the placement rack (17) is provided with a desiccant. The stirring rack (11) is located below the circulation pipe (5). Magnetic blocks (16) are installed on the inner walls of both sides of the top of the annular frame (14).

3. The hot air circulation device for biomass drying and heating according to claim 1, characterized in that: A guide plate (15) is fixedly connected to the bottom inner wall of the box (6). The guide plate (15) is inclined and its position is adapted to the air intake pipe (7).

4. A hot air circulation device for biomass drying and heating according to claim 1, characterized in that: The input end of the negative pressure fan (4) is connected to a connecting pipe, which is inserted into the inner wall of the top of the tank (3). The output end of the hot air fan (8) is connected to an air inlet pipe.

5. A hot air circulation device for biomass drying and heating according to claim 4, characterized in that: The bottom outer wall of the tank (3) is provided with an annular groove, and the inner wall of the annular groove is fixedly connected with an annular pipe (9), and the air inlet pipe is connected to the annular pipe (9).

6. A hot air circulation device for biomass drying and heating according to claim 5, characterized in that: The outer wall of the annular tube (9) is provided with a plurality of jet pipes (18), which are arranged in a ring array. The outer wall of the jet pipes (18) is connected with a mesh cover (19) by threads.

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