CN220398017U

CN220398017U - Energy-saving tube bundle dryer

Info

Publication number: CN220398017U
Application number: CN202322003625.0U
Authority: CN
Inventors: 武光庆; 李法田; 葛建亭
Original assignee: Luzhou Bio Chem Technology Shangdong Co ltd; Shandong Luzhou Food Group Co ltd
Current assignee: Luzhou Bio Chem Technology Shangdong Co ltd; Shandong Luzhou Food Group Co ltd
Priority date: 2023-07-28
Filing date: 2023-07-28
Publication date: 2024-01-26
Anticipated expiration: 2033-07-28

Abstract

The utility model discloses an energy-saving tube bundle dryer, and belongs to the field of drying equipment. It mainly includes the drying-machine body, and drying-machine body one end is connected with feed mechanism, and the drying-machine body other end is equipped with the discharging pipe, is equipped with exhaust gas vent-pipe on the drying-machine body, be equipped with waste gas heat exchanger between exhaust gas vent-pipe and the drying-machine body, waste gas heat exchanger includes outer pipeline, outer pipeline one end and drying-machine body sealing connection, outer pipeline other end and exhaust gas vent-pipe sealing connection, and through-connection has the heat exchange tube in the outer pipeline, and the one end of heat exchange tube is equipped with cold air intake pipe one, and the other end and the inside intercommunication of drying-machine body of heat exchange tube. The utility model arranges the corresponding heat exchangers on the exhaust gas pipe and the material conveying pipeline respectively, and introduces the clean air after heat exchange into the dryer again, thereby achieving the effects of waste heat recovery and recycling and turning the materials and reducing the steam consumption of the dryer and the temperature of the finished product materials.

Description

Energy-saving tube bundle dryer

Technical Field

The utility model belongs to the field of drying equipment, and particularly relates to an energy-saving tube bundle dryer.

Background

The tube bundle dryer is widely applied to the corn deep processing industry and is mainly used for drying byproducts of corn husks, corn germs and corn protein powder in corn wet processing. The tube bundle dryer adopts primary steam as a heat energy source, and the water evaporated from the materials is changed into water vapor to be discharged into the atmosphere. The drying steam consumption is about more than half of the steam consumption in corn wet starch production.

If the patent of the bulletin number of authority "CN218764447U" discloses a tube bank rotary type automatic dryer, including the mounting bracket, the lower extreme side of mounting bracket is provided with the bottom plate, and the lower extreme of bottom plate is provided with the removal subassembly, and the inside rotation of mounting bracket is connected and is provided with the tube bank, and the tube bank passes through angle adjusting assembly and rotates with the mounting bracket to be connected, and one side upper end of tube bank is provided with the exhaust port, and the opposite side upper end of tube bank is provided with down the hopper near the position of exhaust port.

Although the problem of easy card material of inside auger blade of drying-machine feed inlet department has been solved to above-mentioned patent, but it still has following technical problem in the use: 1. the air of the dryer generally enters from the discharging pipe, and the discharging pipe is positioned in the middle of one end of the dryer, so that the disadvantage of the arrangement is that the air cannot achieve the effect of turning materials, the drying capacity of the dryer is reduced, and the exertion of the productivity and the utilization rate of the equipment are affected; 2. air can enter the feed inlet, and the air is normal-temperature air, so that the temperature in the dryer is relatively reduced, and the drying speed of the materials is influenced; 3. the temperature of the dried materials is higher, the materials are easy to agglomerate after being packaged, and especially the materials are more serious in summer, and the materials are often required to be blown and cooled before being packaged, so that the production cost is increased; 4. the steam produced by the dried material and the dried material contain a large amount of heat, and the direct discharge leads to a large amount of heat waste, which is unfavorable for benign production.

Disclosure of Invention

The utility model aims to solve the technical problems that: the energy-saving tube bundle dryer has the advantages that the defects of the prior art are overcome, the corresponding heat exchangers are respectively arranged on the waste gas exhaust pipe and the material conveying pipeline, clean air after heat exchange is introduced into the dryer again, the effects of recycling waste heat and turning materials are achieved, the steam consumption of the dryer and the temperature of finished materials are reduced, the cooling step of the materials in the packaging process is omitted, and the production cost is saved.

The energy-saving tube bundle dryer comprises a dryer body, wherein one end of the dryer body is connected with a feeding mechanism, a discharging tube is arranged at the other end of the dryer body, an exhaust gas exhaust pipe is arranged on the dryer body, an exhaust gas heat exchanger is arranged between the exhaust gas exhaust pipe and the dryer body and comprises an outer pipeline, one end of the outer pipeline is in sealing connection with the dryer body, the other end of the outer pipeline is in sealing connection with the exhaust gas exhaust pipe, a heat exchange tube is connected in the outer pipeline in a penetrating manner, one end of the heat exchange tube is provided with a first cold air inlet tube, and the other end of the heat exchange tube is communicated with the inside of the dryer body.

Preferably, the included angle between the heat exchange tube and the horizontal plane is 30-60 degrees, one end of the first cold air inlet tube is higher than the other end, one end of the heat exchange tube, which is far away from the first cold air inlet tube, is provided with a first air outlet, the first air outlet is communicated with the bottom of the dryer body through a first air outlet tube, and a first regulating valve is arranged on the first air outlet tube.

Preferably, a U-shaped pipe for receiving condensed water is arranged below the first air outlet, a drain pipe is communicated with the lowest end of the U-shaped pipe, and a drain valve is arranged on the drain pipe.

Preferably, a guide plate for drainage and discharge of condensed water is arranged in the outer pipeline, the guide plate is arranged downwards in a downward inclined mode, and the lowest end of the guide plate corresponds to the inside of the U-shaped pipe.

Preferably, the heat exchange tube is of a pipeline type structure.

Preferably, the outer pipeline is of a cuboid structure, and the heat exchange tubes in the outer pipeline are of a tube array structure.

Preferably, the feeding mechanism is a sealed feeding auger, and a feeding port is arranged on the sealed feeding auger.

Preferably, a material collecting tank is arranged below the discharging pipe, a material conveying pipeline corresponding to the discharging pipe is arranged in the material collecting tank, a material pipe heat exchanger is arranged on the material conveying pipeline, the material pipe heat exchanger comprises a heat exchanger body which is in sealing connection with the outer side wall of the material conveying pipeline, one end of the heat exchanger body is communicated with a cold air inlet pipe II, the other end of the heat exchanger body is communicated with an air outlet pipe II, and the air outlet pipe II is connected with a dryer body.

Preferably, the second air outlet pipe is provided with a second regulating valve, and the second air outlet pipe is connected with the bottom of the dryer body.

Preferably, the air conditioner further comprises a fan, and the first cold air inlet pipe and the second cold air inlet pipe are respectively connected with the fan.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the heat exchangers are additionally arranged at the exhaust gas pipe and the material conveying pipeline respectively, so that waste heat of waste hot gas and dried materials is recovered, the cooling step of a packaging procedure is omitted, the production cost is greatly reduced, the energy waste is avoided, and the economic benefit is improved; and the hot air after heat exchange drives turning and heat exchange of wet materials, so that the drying process of the materials is accelerated, the drying time of the materials is shortened, the steam consumption is saved, and the productivity of the dryer is improved.

2. The sealed feeding auger feeding effectively prevents to get into cold air from the feed inlet when drying, avoids cold air to influence the inside temperature of drying-machine body, makes the drying-machine stoving effect more stable.

3. The waste gas heat exchanger adopts the heat exchange tube which is obliquely arranged, so that condensed water is prevented from falling into the dryer body, and the condensed water can be smoothly discharged by matching with the guide plate and the U-shaped tube.

Drawings

FIG. 1 is a schematic diagram of a first embodiment;

fig. 2 is a front view of the first embodiment;

FIG. 3 is a schematic diagram showing the cooperation of the exhaust gas heat exchanger with the dryer body, the exhaust gas outlet pipe and the U-shaped pipe in the first embodiment;

fig. 4 is a schematic structural diagram of an exhaust gas heat exchanger in the second embodiment;

FIG. 5 is a schematic diagram of the cooperation of a material tube heat exchanger with a material transfer conduit;

fig. 6 is a schematic structural diagram of the second embodiment.

In the figure, 1, a feeding mechanism; 2. a feed inlet; 3. a dryer body; 4. an exhaust gas pipe; 5. an exhaust gas heat exchanger; 501. a first cold air inlet pipe; 502. an outer pipe; 503. a U-shaped tube; 504. a drain pipe; 505. a drain valve; 506. the first air outlet pipe is arranged; 507. a first regulating valve; 508. a heat exchange tube; 509. a deflector; 6. a blower; 7. a material conveying pipeline; 8. a material tube heat exchanger; 801. a cold air inlet pipe II; 802. a heat exchanger body; 803. a second regulating valve; 804. the air outlet pipe II; 9. a discharge pipe; 10. a material collecting tank.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

the directional terminology referred to in the paragraphs directed to the detailed description is merely for convenience of those skilled in the art in understanding the teachings presented herein in terms of the visual orientation illustrated in the drawings. Unless specifically defined and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly so that one of ordinary skill in the art would understand the meaning of the terms in this disclosure as the case may be.

Embodiment one:

as shown in fig. 1 and 2, an energy-saving tube bundle dryer comprises a dryer body 3, wherein one end of the dryer body 3 is connected with a feeding mechanism 1, the feeding mechanism 1 is preferably a sealed feeding auger, the sealed feeding auger is commercially available and is provided with a feeding port 2, and the sealed feeding auger can effectively prevent cold air from entering from the feeding port 2 during drying and avoid influencing the temperature inside the dryer body 3; the dryer body 3 other end is equipped with discharging pipe 9, be equipped with waste gas blast pipe 4 on the dryer body 3, be equipped with waste gas heat exchanger 5 between waste gas blast pipe 4 and the dryer body 3, waste gas heat exchanger 5 includes outer pipeline 502, outer pipeline 502 is hollow circular pipeline, outer pipeline 502 one end and dryer body 3 sealing connection, the outer pipeline 502 other end and waste gas blast pipe 4 sealing connection, through-connection has heat exchange tube 508 in the outer pipeline 502, heat exchange tube 508 is the pipeline structure, heat exchange tube 508's one end is equipped with cold air intake pipe one 501, heat exchange tube 508's the other end (the one end of keeping away from cold air intake pipe one 501) is equipped with gas outlet one, gas outlet one communicates with dryer body 3 bottom through outlet pipe one 506, be equipped with first governing valve 507 on outlet pipe one 506. When in use, waste heat gas goes outside the heat exchange tube 508, exchanges heat with the heat exchange tube 508 in the outer pipeline 502, and is discharged through the waste gas exhaust pipe 4 after heat exchange; clean cold air passes through the inside of the heat exchange tube 508, exchanges heat, and enters the dryer body 3 through the first air outlet tube 506 to participate in drying materials.

As shown in fig. 3, the included angle between the heat exchange tube 508 and the horizontal plane is 30-60 °, and the end of the first cold air inlet tube 501 is higher than the other end, so as to guide the condensed water generated on the outer wall of the heat exchange tube 508 along the inclined direction of the heat exchange tube 508 in the heat exchange process, and prevent the condensed water from dropping into the dryer body 3. The U-shaped pipe 503 for receiving the condensed water is arranged below the first air outlet, the guide plate 509 for guiding and discharging the condensed water is arranged in the outer pipe 502, the guide plate 509 is arranged downwards in a downward inclined mode, the guide plate 509 can effectively drain the condensed water after guiding the condensed water when the condensed water drops downwards, the lowest end of the guide plate 509 corresponds to the inside of the U-shaped pipe 503, the lowest end of the U-shaped pipe 503 is communicated with the drain pipe 504, and the drain pipe 504 is provided with the drain valve 505. The U-shaped pipe 503 can collect condensed water formed in the heat exchange process and drain the condensed water to the drain pipe 405 for discharging.

As shown in fig. 1, a material collecting tank 10 is arranged below the discharging pipe 9, a material conveying pipeline 7 corresponding to the discharging pipe 9 is arranged in the material collecting tank 10, specifically, the bottom of the discharging pipe 9 is arranged on one side inside the material collecting tank 10, the material conveying pipeline 7 is arranged on the other side inside the material collecting tank 10, and a material pipe heat exchanger 8 is arranged on the material conveying pipeline 7. As shown in fig. 5, the material pipe heat exchanger 8 comprises a heat exchanger body 802 in sealing connection with the outer side wall of the material conveying pipeline 7, one end of the heat exchanger body 802 is communicated with a cold air inlet pipe II 801, the other end of the heat exchanger body 802 is communicated with an outlet pipe II 804, and the outlet pipe II 804 is connected with the dryer body 3. During manufacturing, the second cold air inlet pipe 801 and the second air outlet pipe 804 are respectively arranged on two sides of the heat exchanger body 802, the second cold air inlet pipe 801 is located at the upper end of the heat exchanger body 802, the second air outlet pipe 804 is located at the lower end of the heat exchanger body 802, namely cold air enters from the upper portion of the material pipe heat exchanger 8 and is output from the lower portion of the material pipe heat exchanger 8 after exchanging heat with the material conveying pipeline 7, the second air outlet pipe 804 is provided with a second regulating valve 803, the second air outlet pipe 804 is connected with the bottom of the dryer body 3, and the first cold air inlet pipe 501 and the second cold air inlet pipe 801 are respectively connected with the fan 6. The hot air after heat exchange enters the dryer body 3 through the air outlet pipe II 804 to participate in the drying operation. The air quantity and the air pressure of the air entering the dryer body 3 after heat exchange of the two heat exchangers can be adjusted through the first adjusting valve 507 and the second adjusting valve 803, and as the hot air in the waste gas heat exchanger 5 and the material pipe heat exchanger 8 enters the dryer from the bottom of the dryer body 3, the hot air can rise in the process, the turning and the heat exchange of wet materials are driven through enough air pressure, the drying process of the materials is accelerated, the drying time of the materials is shortened, the steam consumption is saved, and the productivity of the dryer is improved.

Embodiment two:

as shown in fig. 4 and 6, an energy-saving tube bundle dryer has an outer tube 502 with a rectangular parallelepiped structure, and a heat exchange tube 508 in the outer tube 502 with a tubular structure. When the heat exchange tube is used, cold air flows through the inside of the tube array, waste heat flows through the outside of the tube array, and the heat exchange tube 508 of the tube array structure increases the contact area between the waste heat and the heat exchange tube 508, so that heat exchange is more sufficient, and the heat exchange effect is improved. The other is the same as in the first embodiment.

When the dryer is used, the fan 6 and the feeding mechanism 1 are started, a material to be dried is sent into the dryer body 3 through the feeding mechanism 1 through the feeding port 2, waste heat gas generated in the drying process has higher temperature, the waste heat gas rises into the outer pipeline 502 in the waste gas heat exchanger 5, heat exchange is carried out between the waste heat gas and the heat exchange pipe 508 in the outer pipeline 502, and the waste heat gas is discharged through the waste gas exhaust pipe 4 after the heat exchange; the dried materials are discharged into a material collecting tank 10 through a discharging pipe 9, and then are sent into a packaging procedure for packaging through a material conveying pipeline 7, and the materials and a material pipe heat exchanger 8 enter into heat exchange and cooling in the conveying process. In the process, clean air enters the heat exchange tube 508 in the waste gas heat exchanger 5 and the heat exchanger body 802 in the material tube heat exchanger 8 through the first cold air inlet tube 501 and the second cold air inlet tube 801 respectively under the action of the fan 6, wherein hot air after heat exchange in the heat exchange tube 508 is sent into the dryer body 3 through the first air outlet tube 506, hot air after heat exchange in the heat exchanger body 802 is sent into the dryer body 3 through the second air outlet tube 804, and the hot air is subjected to reference and drying in the dryer body 3, so that the steam consumption of the dryer is greatly reduced.

Finally, although the description has been described in terms of embodiments, not every embodiment is intended to include only a single embodiment, and such description is for clarity only, as one skilled in the art will recognize that the embodiments of the disclosure may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides an energy-saving tube bank drying-machine, includes drying-machine body (3), and drying-machine body (3) one end is connected with feed mechanism (1), and drying-machine body (3) other end is equipped with discharging pipe (9), is equipped with waste gas blast pipe (4) on drying-machine body (3), its characterized in that: be equipped with waste gas heat exchanger (5) between waste gas blast pipe (4) and drying-machine body (3), waste gas heat exchanger (5) are including outer pipeline (502), outer pipeline (502) one end and drying-machine body (3) sealing connection, outer pipeline (502) other end and waste gas blast pipe (4) sealing connection, through-connection has heat exchange tube (508) in outer pipeline (502), one end of heat exchange tube (508) is equipped with cold air intake pipe one (501), the other end and the inside intercommunication of drying-machine body (3) of heat exchange tube (508).

2. The energy efficient tube bundle dryer of claim 1, wherein: the included angle between the heat exchange tube (508) and the horizontal plane is 30-60 degrees, one end of the first cold air inlet tube (501) is higher than the other end, one end of the heat exchange tube (508) away from the first cold air inlet tube (501) is provided with a first air outlet, the first air outlet is communicated with the bottom of the dryer body (3) through a first air outlet tube (506), and a first regulating valve (507) is arranged on the first air outlet tube (506).

3. The energy efficient tube bundle dryer of claim 2, wherein: a U-shaped pipe (503) for receiving condensed water is arranged below the first air outlet, a drain pipe (504) is communicated with the lowest end of the U-shaped pipe (503), and a drain valve (505) is arranged on the drain pipe (504).

4. The energy-efficient tube bundle dryer as set forth in claim 3, wherein: a guide plate (509) for draining condensed water is arranged in the outer pipeline (502), the guide plate (509) is arranged downwards in a downward inclined mode, and the lowest end of the guide plate (509) corresponds to the inside of the U-shaped pipe (503).

5. The energy efficient tube bundle dryer of claim 1, wherein: the heat exchange tube (508) is of a pipeline type structure.

6. The energy efficient tube bundle dryer of claim 1, wherein: the outer pipeline (502) is of a cuboid structure, and the heat exchange pipes (508) in the outer pipeline (502) are of a tubular structure.

7. The energy efficient tube bundle dryer of claim 1, wherein: the feeding mechanism (1) is a sealed feeding auger, and a feeding port (2) is arranged on the sealed feeding auger.

8. The energy efficient tube bundle dryer according to any one of claims 1 to 7, characterized in that: the utility model discloses a dryer, including discharging pipe (9), material collecting vat (10) are equipped with in material collecting vat (10), material pipeline (7) are equipped with material pipe heat exchanger (8) in material collecting vat (10), material pipe heat exchanger (8) include heat exchanger body (802) with material pipeline (7) lateral wall sealing connection, the one end intercommunication of heat exchanger body (802) has cold air intake pipe two (801), the other end intercommunication of heat exchanger body (802) has outlet duct two (804), outlet duct two (804) are connected with dryer body (3).

9. The energy efficient tube bundle dryer of claim 8, wherein: the second air outlet pipe (804) is provided with a second regulating valve (803), and the second air outlet pipe (804) is connected with the bottom of the dryer body (3).

10. The energy efficient tube bundle dryer of claim 9, wherein: the air conditioner further comprises a fan (6), and the first cold air inlet pipe (501) and the second cold air inlet pipe (801) are respectively connected with the fan (6).