CN210051149U - Backheating type powder heat treatment device - Google Patents
Backheating type powder heat treatment device Download PDFInfo
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- CN210051149U CN210051149U CN201920668427.7U CN201920668427U CN210051149U CN 210051149 U CN210051149 U CN 210051149U CN 201920668427 U CN201920668427 U CN 201920668427U CN 210051149 U CN210051149 U CN 210051149U
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Abstract
The utility model discloses a backheating formula powder heat treatment device, including feeder hopper, spiral coil, wheel area, riding wheel, heating band and play hopper, the slope of spiral coil sets up, and the one end that spiral coil is close to powder release mouth is higher than the one end that spiral coil is close to the feed inlet, has the clearance between the adjacent pipe on the play material section of spiral coil and the pipe, sealing connection between the adjacent pipe on the heat transfer section of spiral coil and the pipe. Under the rotation of the spiral coil, powder in the heat exchange tube is lifted from the feed inlet to the heat treatment high position, the powder is heated to the required temperature by the heating belt in the heat exchange tube, the powder is discharged from the powder release port at the heat treatment high position and enters the inner cavity of the spiral coil, and in the downward flowing process of the inner cavity of the spiral coil, heat is transferred to low-temperature powder in the heat exchange tube through the wall of the inner cavity of the spiral coil, so that the purpose of recycling the powder heat is achieved, and the energy-saving operation of the heat treatment of the powder is realized.
Description
Technical Field
The utility model relates to a powder heat recovery recycles the technique, especially relates to a device that can high-efficiently accomplish powder backheat and thermal treatment.
Background
Powder heat treatment is a common process in the industrial field and has wide application in the fields of electric power, chemical industry, pharmacy, printing and dyeing, petroleum, steel, automobiles, food and other industries. The components or the structure of the powder material are changed by a heating mode, so that a certain specific function or function regeneration is achieved.
The powder heat treatment process generally applied in the industry is rotary kiln processing, the heating mode can be divided into fuel heating and electric heating, and the fuel heating mode can be divided into an internal heating mode and an external heating mode according to the powder heating mode. The internal heat type is that the fuel burns in the cavity of the rotary kiln, heat the cylinder of the rotary kiln, achieve the goal of heating the powder, the heat transfer is effectual; the external heating type is used for heating the outer wall of the cylinder body of the rotary kiln by burning fuel, and transferring heat to powder through the wall surface of the cylinder body, thereby heating the powder. The existing rotary kiln adopts a mode that an inlet end is high and an outlet end is low, powder is discharged from an outlet after being treated in the rotary kiln, the temperature of the powder is close to the heat treatment temperature, and heat cannot be recycled.
Because the powder material can not be subjected to heat exchange among the powder in the heat exchanger after being pressurized by the pump like a fluid, the conventional powder heat treatment device and method have no heat recovery, and have the problems of high energy consumption and serious waste heat resource waste in the heat treatment process.
The current situation of powder heat treatment and powder waste heat recycling is known, and a method and a device capable of efficiently and rapidly recycling powder heat are lacked, so that a large amount of energy is saved in powder heat treatment processes in various fields.
SUMMERY OF THE UTILITY MODEL
The problem that heat cannot be efficiently recovered in the existing powder treatment process is solved, and the key point of the problem is that a powder material cannot be pressurized by a pump like a fluid so as to improve the height and the flowing capacity of the powder and further difficultly realize the purpose of heat exchange among the powder. The utility model provides a promote the powder and promote the height for the powder is at the flow in-process countercurrent flow, reaches the backheating formula powder heat treatment device of heat retrieval and utilization.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a regenerative powder heat treatment device comprises a feed hopper, a leak-proof plate, a spiral coil, a wheel belt, a riding wheel bracket, a heating belt and a discharge hopper;
the spiral coil is formed by winding a heat exchange tube along a spiral line, one end of the heat exchange tube is a feed port, and the other end of the heat exchange tube is a powder release port; the spiral coil is obliquely arranged, one end of the spiral coil, which is close to the powder release opening, is higher than one end of the spiral coil, which is close to the feed opening, the end of the spiral coil, which is close to the feed opening, is a discharge section, and the rest of the spiral coil is a heat exchange section; gaps exist between adjacent pipes on the discharging section of the spiral coil pipe, the gaps serve as discharge ports, the adjacent pipes on the heat exchange section of the spiral coil pipe are connected in a sealing mode, and a spiral coil pipe inner cavity is formed in the heat exchange section of the spiral coil pipe in the axial direction;
the anti-leakage plate is arranged on the side wall of the feed hopper, the anti-leakage plate is in rotating and sealing fit with the side wall of the feed hopper, the spiral coil pipe penetrates through the anti-leakage plate and is fixedly connected with the anti-leakage plate, and a feed inlet of the heat exchange pipe extends into the feed hopper;
at least two wheel belts are sleeved outside the heat exchange section of the spiral coil pipe, a pair of riding wheels is arranged below each wheel belt, the riding wheels are arranged on a riding wheel support and are in rotating fit with the riding wheel support, and the wheel belts are arranged on the corresponding pair of riding wheels;
the heating belt is sleeved on the spiral coil and is close to the powder release port; the discharge hopper is arranged below the discharge section of the spiral coil pipe.
Further, the heat exchange section of the spiral coil pipe is wrapped with a heat insulation layer, and one end of the heat insulation layer extends out of one end of the spiral coil pipe close to the powder release port.
Furthermore, the backheating type powder heat treatment device further comprises a conductive slip ring, a heating power line and a heating connecting wire, wherein the heating power line is connected with one end of the conductive slip ring through a wire, one end of the heating connecting wire is connected with the other end of the conductive slip ring through a wire, and the other end of the heating connecting wire is connected with the heating belt.
Furthermore, the plate surface of the leakage-proof plate is vertical to the axis of the spiral coil pipe.
Furthermore, the heat regenerative powder heat treatment device also comprises a discharging belt conveyor, wherein one end of the discharging belt conveyor is positioned under an outlet of the discharging hopper.
The technical effects of the utility model are that: under the guide action of the spiral coil, the powder is lifted in the heat exchange tube and heated by the treated high-temperature powder, so that the purpose of heat recovery is achieved. The powder continues to be heated to the required treatment temperature under the action of the heating belt, the heat exchange tube is discharged from the powder release port, the heat treatment process is completed, the powder enters the inner cavity of the spiral coil, the powder flows along the axial direction of the inner cavity of the spiral coil from the high heat treatment end under the rotation action of the spiral coil, and the powder flows out from a gap (namely a discharge port) between adjacent tubes on the discharge section and enters the discharge hopper. The whole process is operated continuously, the powder flows in the heat exchange tube and the inner cavity of the spiral coil tube and exchanges heat efficiently and rapidly, the heat recovery of the powder material is realized, and the heat recovery process is countercurrent heat exchange. The method has great significance for energy conservation and emission reduction in the fields of pharmacy, chemical industry and the like of heat treatment of a large amount of powder, and the energy consumption in the heat treatment process is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a regenerative powder heat treatment apparatus.
In the figure: 1-a feed hopper; 2-leak-proof plate; 3, heat exchange tube; 4, a belt wheel; 5, insulating layer; 6-spiral coil pipe; 7-heating a belt; 8-powder release port; 9-conductive slip ring; 10-heat treatment of powder inlet and outlet channels; 11-heating power supply line; 12-heating the connecting wire; 13-riding wheel; 14-riding wheel support; 15-discharging belt conveyer; 16-a discharge hopper; 17-a feed inlet; and 18, a discharge hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a regenerative powder heat treatment device comprises a feed hopper 1, a leak-proof plate 2, a spiral coil 6, a belt 4, a riding wheel 13, a riding wheel bracket 14, a heating belt 7, a discharge hopper 16, a conductive slip ring 9, a heating power line 11, a heating connecting wire 12 and a discharge belt conveyor 15.
Spiral coil 6 is formed by heat exchange tube 3 along the helix coil, and the one end of heat exchange tube 3 is feed inlet 17, and the other end of heat exchange tube 3 is powder release 8, and in this embodiment, spiral coil 6 can be by the screw type that one or more pipe or square pipe processing formed. The spiral coil 6 inclines and sets up, and the one end that the spiral coil 6 is close to powder release 8 is higher than the one end that the spiral coil 6 is close to feed inlet 17, and the one end that the spiral coil 6 is close to feed inlet 17 is the ejection of compact section, and the rest of spiral coil 6 is the heat transfer section. A gap exists between adjacent pipes on the discharging section of the spiral coil 6, the gap serves as a discharging port 18, the adjacent pipes on the heat exchange section of the spiral coil 6 are connected in a sealing mode, and a spiral coil inner cavity is axially formed in the heat exchange section of the spiral coil 6.
Leak protection plate 2 sets up on the lateral wall of feeder hopper 1 and is close to the bottom of feeder hopper 1, and leak protection plate 2 rotates and sealed cooperation with the lateral wall of feeder hopper 1, and spiral coil 6 passes leak protection plate 2 and with leak protection plate 2 fixed connection, and in feed inlet 17 of heat exchange tube 3 stretched into feeder hopper 1, in this embodiment, the face of leak protection plate 2 was perpendicular with spiral coil 6's axis. Spiral coil 6 and leak protection plate 2 synchronous revolution, leak protection plate 2 and feeder hopper 1's lateral wall are through rotatory and sealed cooperation, prevent that the powder in the feeder hopper 1 from dissipating outside feeder hopper 1 through the gap between leak protection plate 2 and the lateral wall of feeder hopper 1.
The feed inlet 17 of the spiral coil 6 rotates in the feed hopper 1, and in the rotation, the powder in the feed hopper 1 is gradually loaded into the heat exchange tube 3 from the feed inlet 17, and along with the rotation of the spiral coil 6, the loaded powder is lifted from the lower part (the feed inlet 17) to the higher part (the powder release port 8). During the lifting process, the cold powder in the heat exchange tube 3 absorbs the heat of the hot powder flowing in the inner cavity of the spiral coil tube (flowing from the high end to the discharge port 18) and is gradually heated. The heating belt 7 is sleeved on the spiral coil 6 and close to the powder release port 8, the heating belt 7 adopts electric heating and rotates along with the spiral coil 6, and the spiral coil 6 is heated in an electric heating mode, so that powder in the heat exchange tube 3 is heated. Heating power cord 11 is connected with the one end wire of leading electrical slip ring 9, and the one end of heating connecting wire 12 is connected with the other end wire of leading electrical slip ring 9, and the other end of heating connecting wire 12 is connected with heating band 7, through leading electrical slip ring 9, reaches 11 end circuit irrotations of heating power cord, and heating connecting wire 12 is along with spiral coil 6 synchronous revolution. Under the action of the heating belt 7, the temperature is further raised to reach the temperature required by heat treatment. After the lifting process and the heating process are finished, the powder is discharged from the powder discharge port 8 of the heat exchange tube 3 and enters the inner cavity of the spiral coil tube, and gradually flows towards the discharge port 18 under the rotation action of the spiral coil tube 6, and in the flowing process, heat is transferred to the cold powder in the heat exchange tube 3.
At least two wheel belts 4 are sleeved outside the heat exchange section of the spiral coil 6, and the wheel belts 4 are concentric and coaxial with the spiral coil 6 and serve as a support for the rotation of the whole spiral coil 6. In this embodiment, two belt pulleys 4 are sleeved outside the heat exchange section, a pair of supporting rollers 13 is arranged below each belt pulley 4, the supporting rollers 13 are arranged on supporting roller brackets 14 and are in running fit with the supporting roller brackets 14, the belt pulleys 4 are arranged on the corresponding pair of supporting rollers 13, the supporting rollers 13 are used in pairs to support the belt pulleys 4, a rotating device is arranged on the riding wheel bracket 14 and comprises a driving motor and a gear box, a power output shaft of the driving motor is connected with a power input shaft of the gear box, one riding wheel in a pair of riding wheels is connected with a power output shaft of the gear box, namely, the driving motor drives the shaft of the gear box to rotate, the power output shaft of the gear box drives the corresponding riding wheel 13 to rotate, the riding wheel 13 drives the wheel belt 4 pressed on the riding wheel 13 to rotate, which in turn drives the helical coil 6 to rotate together, is conventional in the art for rotating devices and will not be described in detail.
Go out hopper 16 and set up in the below of spiral coil 6's ejection of compact section, collect the powder of handling and heat recovery that flows from the clearance between the adjacent pipe on the ejection of compact section, ejection of compact belt conveyor 15's one end is located under hopper 16's the export. After passing through the inner cavity of the spiral coil, the powder enters the discharge hopper 16 along the discharge port 18 under the action of gravity, and the powder in the discharge hopper 16 enters the discharge belt conveyor 15 through the outlet of the discharge belt conveyor 15 and is conveyed away from the regenerative powder heat treatment device by the discharge belt conveyor 15. The heat exchange section of spiral coil 6 is wrapped up in heat preservation 5 outward, and the one end of heat preservation 5 stretches out the one end that spiral coil 6 is close to powder release 8, and heat preservation 5 reduces the heat dissipation capacity of outer wall towards the environment. The powder heat treatment process involves the addition and discharge of part of the heat treatment gas, and a heat treatment powder inlet and outlet passage 10 can be arranged, as shown in the position of fig. 1.
When the regenerative powder heat treatment device is used, powder is firstly loaded into a feed hopper 1; then the wheel belt 4 and the spiral coil 6 are driven to rotate by the rotating device, and the power supply of the heating belt 7 is started; when the spiral line of the spiral coil 6 adopts a right-handed spiral, the spiral coil 6 rotates anticlockwise from the feed inlet 17 to the powder release opening 8; when the spiral line of the spiral coil 6 adopts a left-handed spiral, the spiral coil 6 rotates clockwise when viewed from the feed port 17 to the powder release port 8; powder at the inner lower part of the feed hopper 1 gradually enters the heat exchange tube 3 from the feed inlet 17, and under the rotation action of the spiral coil 6, the powder is gradually lifted from the feed inlet 17 to the powder release port 8 in the heat exchange tube 3; the powder is discharged out of the heat exchange tube 3 from the powder release port 8 and enters the inner cavity of the spiral coil tube, the powder gradually flows downwards along the inner cavity of the spiral coil tube and is discharged from the discharge port 18 under the rotation action of the spiral coil tube 6 due to the inclination of the inner cavity of the spiral coil tube, and the discharged powder enters the discharge hopper 16; due to the heating effect of the heating belt 7, the powder is heated to the required temperature in the heat exchange tube 3, the temperature of the powder after heat treatment is finished after the powder is discharged from the powder release port 8 and enters the inner cavity of the spiral coil tube, in the process that the inner cavity of the spiral coil tube flows downwards, the heat is transferred to the low-temperature powder in the heat exchange tube 3 through the inner cavity wall of the spiral coil tube, the temperature of the powder in the heat exchange tube 3 is increased, the temperature of the powder in the inner cavity of the spiral coil tube is reduced, and the heat is transferred from the treated powder to the untreated powder.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. A regenerative powder heat treatment device is characterized in that: comprises a feed hopper (1), a leak-proof plate (2), a spiral coil (6), a wheel belt (4), a riding wheel (13), a riding wheel bracket (14), a heating belt (7) and a discharge hopper (16);
the spiral coil (6) is formed by winding a heat exchange tube (3) along a spiral line, one end of the heat exchange tube (3) is provided with a feeding hole (17), and the other end of the heat exchange tube (3) is provided with a powder releasing hole (8); the spiral coil (6) is obliquely arranged, one end, close to the powder release opening (8), of the spiral coil (6) is higher than one end, close to the feed opening (17), of the spiral coil (6), one end, close to the feed opening (17), of the spiral coil (6) is a discharge section, and the rest of the spiral coil (6) is a heat exchange section; a gap exists between adjacent pipes on the discharging section of the spiral coil (6), the gap is used as a discharging port (18), the adjacent pipes on the heat exchange section of the spiral coil (6) are connected in a sealing manner, and a spiral coil inner cavity is axially formed in the heat exchange section of the spiral coil (6);
the leakage-proof plate (2) is arranged on the side wall of the feed hopper (1), the leakage-proof plate (2) is in rotating and sealing fit with the side wall of the feed hopper (1), the spiral coil (6) penetrates through the leakage-proof plate (2) and is fixedly connected with the leakage-proof plate (2), and a feed inlet (17) of the heat exchange tube (3) extends into the feed hopper (1);
at least two belt pulleys (4) are sleeved outside the heat exchange section of the spiral coil pipe (6), a pair of supporting wheels (13) is arranged below each belt pulley (4), the supporting wheels (13) are arranged on supporting wheel supports (14) and are in running fit with the supporting wheel supports (14), and the belt pulleys (4) are arranged on the corresponding pair of supporting wheels (13);
the heating belt (7) is sleeved on the spiral coil (6) and is close to the powder release opening (8); the discharge hopper (16) is arranged below the discharge section of the spiral coil (6).
2. The regenerative powder heat treatment device according to claim 1, wherein: the heat exchange section of the spiral coil (6) is wrapped by a heat insulation layer (5), and one end of the heat insulation layer (5) extends out of one end, close to the powder release port (8), of the spiral coil (6).
3. The regenerative powder heat treatment device according to claim 1, wherein: the heating device is characterized by further comprising a conductive slip ring (9), a heating power line (11) and a heating connecting wire (12), wherein the heating power line (11) is connected with a wire at one end of the conductive slip ring (9), one end of the heating connecting wire (12) is connected with a wire at the other end of the conductive slip ring (9), and the other end of the heating connecting wire (12) is connected with the heating belt (7).
4. The regenerative powder heat treatment device according to claim 1, wherein: the plate surface of the leak-proof plate (2) is vertical to the axis of the spiral coil pipe (6).
5. The regenerative powder heat treatment device according to any one of claims 1 to 4, wherein: the automatic discharging device is characterized by further comprising a discharging belt conveyor (15), wherein one end of the discharging belt conveyor (15) is located right below an outlet of the discharging hopper (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668427.7U CN210051149U (en) | 2019-05-10 | 2019-05-10 | Backheating type powder heat treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668427.7U CN210051149U (en) | 2019-05-10 | 2019-05-10 | Backheating type powder heat treatment device |
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| CN210051149U true CN210051149U (en) | 2020-02-11 |
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| CN201920668427.7U Active CN210051149U (en) | 2019-05-10 | 2019-05-10 | Backheating type powder heat treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006247A (en) * | 2019-05-10 | 2019-07-12 | 黎柴佐 | A kind of back-heating type powder annealing device and its method |
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2019
- 2019-05-10 CN CN201920668427.7U patent/CN210051149U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006247A (en) * | 2019-05-10 | 2019-07-12 | 黎柴佐 | A kind of back-heating type powder annealing device and its method |
| CN110006247B (en) * | 2019-05-10 | 2024-04-12 | 黎柴佐 | Regenerative powder heat treatment device and method thereof |
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