CN211876685U - Hot air circulating furnace - Google Patents
Hot air circulating furnace Download PDFInfo
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- CN211876685U CN211876685U CN202020505747.3U CN202020505747U CN211876685U CN 211876685 U CN211876685 U CN 211876685U CN 202020505747 U CN202020505747 U CN 202020505747U CN 211876685 U CN211876685 U CN 211876685U
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Abstract
The utility model discloses a hot air circulating furnace, which comprises a body structure frame, a heat preservation layer, a conveying chain, an air duct, a porous plate, an air blower, a temperature sensor and a PLC controller, wherein the body structure frame is enclosed into a long box body shape, the heat preservation layer is arranged on the outer layer of the body structure frame, the upper side of the box body formed by the body structure frame is provided with the air duct, the air duct is connected with the inside of the body structure frame through an air door, the conveying chain and the porous plate are arranged inside the body structure frame, the air blower is arranged at the air inlet of the air duct, the temperature sensor is arranged at the air inlet and the inner wall of the body structure frame, the PLC controller is arranged at the product inlet, the utility model discloses a setting of the aperture ratio of the porous plate, meanwhile, the combination of a general PLC and a sensor completes the automatic regulation and control of the temperature of the circulating furnace.
Description
Technical Field
The utility model relates to the field of machinary, concretely relates to heated air circulation stove.
Background
The hot air circulating furnace has wide application, is suitable for drying materials with small batch size, can be used for heating, curing, drying and dehydrating materials in the industries of medicine, chemical industry, food, agricultural and sideline products, aquatic products, light industry and the like, and is also suitable for the thermalization treatment of various machined part products.
The traditional drying equipment mostly adopts a box type or chamber type drying furnace with intermittent periodic operation, and the box type drying furnace for mass production has the advantages of large volume, inconvenient loading and unloading, long time interval and poor sustainability, so the efficiency is lower, the heat loss is large, meanwhile, the drying temperature is uneven, and the drying effect is poor.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing a heated air circulation stove can improve drying effect, can continuous production simultaneously, improves hot air utilization, and the inside temperature of circulation stove realizes automatically regulated, realizes the effect that constant temperature heaies up.
The technical scheme is as follows: a heated air circulation stove, including body structure frame, heat preservation, transport chain, ventiduct, perforated plate, air-blower, temperature sensor and PLC controller, its characterized in that: the body structure frame is enclosed into a long box body shape, the heat insulation layer is arranged on the outer layer of the body structure frame, two ends of a box body formed by the body structure frame are respectively a product inlet and a product outlet, ventilation ducts are arranged above the product inlet end and the product outlet end of the body structure frame, and the ventilation ducts are connected with the inside of the body structure frame through air doors; the conveying chain is arranged in the body structure frame, moves from the product inlet side to the product outlet side, then downwards passes through the chain wheel, and continuously moves to the product inlet to form a closed loop; the perforated plate is arranged above the conveying chain and on the inner side of the closed-loop conveying chain, the perforated plate arranged on the inner side of the closed-loop conveying chain is connected with the body structure frame, and the connecting part is an air outlet with an outward opening; the blower is arranged at the air inlet of the air duct and provides heated hot air into the body structure frame; the temperature sensor is arranged on the air inlet and the inner wall of the body structure frame; the PLC controller is arranged at the product inlet.
Preferably, the holes on the porous plate are uniformly distributed in an equilateral hexagon, and the aperture ratio is 3.6%.
Preferably, the air outlet is communicated with the air duct through a pipeline.
Preferably, the heat-insulating layer is an aluminum silicate blanket, and the thickness of the aluminum silicate blanket is 20 mm.
Preferably, the flow rate of the hot air blown by the blower is set to 4.5M/S.
The technical principle is as follows: the air-blower blows in hot-blastly in to body structure frame, and hot-blastly go up the product through the perforated plate and flow out body structure frame through the perforated plate in the closed loop's the conveying chain after drying to conveying chain through the perforated plate, gets into the pipeline, gets back to the air intake, realizes the dry and hot-blast cyclic utilization of product.
Has the advantages that: the utility model discloses a settlement to wind speed and percent opening has improved dry effect, has carried out the circulation to flowing body structure frame hot-blast simultaneously and has recycled, improves the energy utilization in the production process by a wide margin, has realized the automatically regulated of the inside temperature of circulating furnace through PLC controller and temperature sensor, reaches the effect that the constant temperature heaies up.
Drawings
Fig. 1 is a front sectional view of the present invention;
fig. 2 is a side sectional view of the present invention;
fig. 3 is a schematic diagram of the layout specification of the perforated plate of the present invention.
Detailed Description
As shown in fig. 1-2, the utility model discloses a front cross-sectional view and a side cross-sectional view, which comprises a body structure frame 1, a heat preservation layer 2, a conveying chain 3, an air duct 4, a perforated plate 5, a blower, a temperature sensor and a PLC controller, wherein the body structure frame 1 is enclosed into a long box shape, the outer layer of the body structure frame 1 is covered with the heat preservation layer 2, and the heat preservation layer 2 is covered by an aluminum silicate blanket with the thickness of 20 mm; the two ends of a box body formed by the body structure frame 1 are respectively provided with a product inlet 6 and a product outlet 7, air ducts 4 are arranged above the ends of the product inlet 6 and the product outlet 7, and the air ducts 4 at the two ends are connected with the inside of the body structure frame 1 through 3 air doors 8; conveying chain 3 sets up inside body structure frame 1, moves to 7 sides of product export from 6 sides of product import and passes through the sprocket downwards, continues to move to 6 departments of product import and form the closed loop, is provided with perforated plate 5 in the body structure frame 1 inner space of conveying chain 3 top, also is provided with perforated plate 5 in the inboard of the conveying chain 3 that becomes the closed loop.
In the present invention, the specification of the porous plate 5 that can be used is shown in fig. 3, and the porous plates are porous plate structures with hole diameters of 8 mm and uniformly arranged into an equilateral hexagon, and the side length of the equilateral hexagon is 40 mm; the holes with the diameter of 10 mm are uniformly distributed into an equilateral hexagonal porous plate structure, and the side length of the equilateral hexagonal structure is 50 mm; the holes with the diameter of 5 mm are uniformly distributed into an equilateral hexagonal porous plate structure, and the side length of the equilateral hexagonal porous plate structure is 25 mm; the holes with the diameter of 9 mm are uniformly distributed into an equilateral hexagonal porous plate structure, and the side length of the equilateral hexagonal porous plate structure is 45 mm; the aperture ratio of the perforated plate 5 thus constructed was 3.6%; in the present embodiment, a perforated plate 5 having a hole diameter of 8 mm and an equilateral hexagonal side length of 40 mm is used.
In the utility model, the air outlet 9 is arranged at the side of the body structure frame 1 with the same horizontal height as the perforated plate 5 inside the conveying chain 3, and the air outlet 9 is connected with the ventilating duct 4 through a pipeline; the utility model discloses well air-blower setting is in the 10 departments of air intake of ventiduct 4, provides the hot-blast after the heating in to body structure frame 1, and temperature sensor sets up the inner wall at air intake 10 and body structure frame 1, and the PLC controller sets up in product import department.
The utility model discloses at the during operation, the air-blower blows in the hot-blast after heating in to air duct 4 through air intake 10, hot-blast enters into body structure frame 1 after respectively passing 3 air doors 8 inside, pass behind perforated plate 5 and carry out drying heating to the product on the conveyor chain 3, through many times of experiments, in the utility model, air-blower control wind speed is 4.5M/S, the perforated plate 5 that the cooperation percent opening is 3.6% can effectively improve drying effect, after hot-blast product drying heating on conveyor chain 3, pass the perforated plate 5 in the conveyor chain, get into air outlet 9, get into air duct 4 through the pipeline, continue to carry out the circulation heating to the product on conveyor chain 3, can effectively improve the utilization ratio of the energy, when the sensor that air intake 10 and body structure frame 1 set up detected the temperature and is low excessively, the PLC controller will control the air-blower to blow in more high temperature hot-blasts, improve the inside temperature of body structure frame 1, guarantee drying effect's normal, through the cooperation of PLC controller and sensor, the utility model discloses can the inside temperature of automatically regulated circulation furnace, accomplish the operation of constant temperature or intensification automatically.
Claims (5)
1. The utility model provides a heated air circulation stove, includes body structure frame (1), heat preservation (2), conveyor chain (3), ventiduct (4), perforated plate (5), air-blower, temperature sensor and PLC controller, its characterized in that: the box body is characterized in that the body structure frame (1) is enclosed into a long box body shape, the heat insulation layer (2) is arranged on the outer layer of the body structure frame (1), a product inlet (6) and a product outlet (7) are respectively arranged at two ends of the box body formed by the body structure frame (1), ventilation ducts (4) are respectively arranged above the product inlet (6) end and the product outlet (7) end of the body structure frame (1), and the ventilation ducts (4) are connected with the inside of the body structure frame (1) through air doors (8); the conveying chain (3) is arranged in the body structure frame (1), moves from the product inlet (6) side to the product outlet (7) side, then downwards passes through the chain wheel, and continuously moves to the product inlet (6) to form a closed loop; the perforated plate (5) is arranged above the conveying chain (3) and on the inner side of the closed-loop conveying chain (3), the perforated plate (5) arranged on the inner side of the closed-loop conveying chain (3) is connected with the body structure frame (1), and the connection position is an air outlet (9) with an outward opening; the air blower is arranged at an air inlet (10) of the air duct (4) and provides heated hot air into the body structure frame (1); the temperature sensor is arranged on the air inlet (10) and the inner wall of the body structure frame; the PLC controller is arranged at the product inlet.
2. The hot air circulation furnace according to claim 1, wherein: the holes in the porous plate (5) are uniformly distributed in an equilateral hexagon, and the aperture ratio is 3.6%.
3. The hot air circulation furnace according to claim 1, wherein: the air outlet (9) is communicated with the ventilation duct (4) through a pipeline.
4. The hot air circulation furnace according to claim 1, wherein: the heat-insulating layer (2) is made of an aluminum silicate blanket, and the thickness of the aluminum silicate blanket is 20 mm.
5. The hot air circulation furnace according to claim 1, wherein: the flow rate of hot air blown by the blower was set to 4.5M/S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020505747.3U CN211876685U (en) | 2020-04-09 | 2020-04-09 | Hot air circulating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020505747.3U CN211876685U (en) | 2020-04-09 | 2020-04-09 | Hot air circulating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211876685U true CN211876685U (en) | 2020-11-06 |
Family
ID=73250293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020505747.3U Active CN211876685U (en) | 2020-04-09 | 2020-04-09 | Hot air circulating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211876685U (en) |
-
2020
- 2020-04-09 CN CN202020505747.3U patent/CN211876685U/en active Active
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