CN101697295A - Method and equipment for utilizing catalytic heat energy of microwire enameling machine - Google Patents

Abstract

The method and the device for utilizing catalytic heat energy of the microwire enameling machine comprise an organic waste gas inlet, a waste gas outlet, a waste gas inlet and a waste gas outlet, wherein the organic waste gas inlet is positioned at the junction of a front furnace space and a rear furnace space and is deviated from the position of the front furnace space; a front heat radiation plate and a rear heat radiation plate are arranged above the front furnace space and the rear furnace space; the length of the front heat radiation plate and the rear heat radiation plate is not less than 68% of the length of the main furnace space; a circulating hot air duct is connected with the circulating fan to send the circulating hot air after catalytic combustion into the rear heating box. At least one communicating pipe is arranged between the front hot box and the rear hot box to conduct circulating hot air. The present invention has the contribution of adopting heat radiating plate in very large area, reasonably determining the position of the organic waste gas inlet and reasonably driving the flow of organic waste gas. Therefore, the invention has outstanding energy-saving effect: the power consumption is only 300 degrees every day, and compared with the similar equipment, the power is saved by more than 30 percent.

Description

Method and equipment for utilizing catalytic heat energy in micro-wire enamelling machine

technical field

The invention relates to a method and equipment for baking and drying an enameled wire coated paint film, in particular to an enamelling machine process using catalytic combustion heat energy instead of electric energy for heating, especially to a process equipment for a fine wire enamelling machine using catalytic combustion heat energy.

Background technique

In the enameled wire production industry of the prior art, in order to reduce costs, the potential can only be tapped in terms of energy saving.

Some enameled wire manufacturers research and develop energy-saving micro-wire enameled wire machine ovens. The catalytic combustion chamber in the exhaust gas recovery and utilization device is set at one end of the furnace curing area. After the air is preheated by the hot air flow, it flows into the furnace along the flow, so the energy saving effect is not obvious.

Recently, many manufacturers have successively carried out technical transformation on existing equipment and applied for several patents, for example: there is already a Chinese utility model patent No. 02290021.7, which discloses a technical solution called "energy-saving micro-wire enamelling machine oven" , the utility model solution: an energy-saving micro-wire enamelled machine oven, including a furnace and a waste gas recycling device, wherein the inlet of the waste gas recycling device is set at one end of the evaporation area of the furnace, and the outlet passes through a circulating fan and a distribution pipe It is connected to one end of the curing area of the furnace.

Although this solution injects the hot air flow generated by waste gas recovery into the inner cavity of the furnace in reverse, the single inlet is far away from the evaporation area of the furnace, and electric heating tubes are still needed for heating in the evaporation area of the furnace. Therefore, the energy saving effect has not reached the ideal value.

Moreover, this scheme is not suitable for processing fine wires.

Another example is the Chinese invention patent application No. 200910105133.4, which discloses a technical solution called "a method and equipment for rationally distributing catalytic combustion heat energy in an enameling machine". It is used for enameled wires with thicker wire diameters, which has an ideal energy-saving effect in that application, but this solution is not suitable for fine wires due to the problem of particle pollution.

For fine wires, the problem of particle pollution is already the main contradiction and must be eradicated.

In the prior art, there is also a technology of making a very small heat radiation plate at the outlet of the micro wire, but the energy saving effect of the solution is too poor.

Contents of the invention

In order to avoid the defects and deficiencies in the prior art, the present invention proposes a method and equipment for utilizing catalytic combustion heat energy in a fine wire enamelling machine.

In order to ensure the quality of the enameled wire, the present invention does not introduce the circulating hot air after the organic waste gas is burned into the furnace body, but uses the circulating hot air to heat a large-area heat radiation plate, and uses clean radiant heat to bake the fine wire.

In order to reduce the consumption of electric energy, the present invention processes multiple enameled wires side by side, and after more than one hour of pre-work with the electric heating tube, the catalytic combustion heat energy has reached the requirement of the equipment itself, and the power supply of the electric heating tube of the main furnace body can be cut off .

In order to achieve the above object, the present invention realizes by adopting the following technical solutions:

Implement the method of utilizing catalytic heat energy by the micro-wire enamelling machine, the method is based on the main furnace body, the circulation fan, the heat exchanger and the enamelling machine of the primary catalytic chamber installed with the main furnace heating pipe; the main furnace heating pipe is used for the preheating process ;

The method comprises the steps of:

A. First, an organic waste gas inlet is provided at the junction of the forehearth space and the back furnace space. The organic waste gas inlet is located in the middle of the main furnace body and is biased towards the forehearth space. The organic waste gas inlet absorbs the escaped gas from the fine line organic waste gas;

B. Install a front heat radiation plate and a rear heat radiation plate above the front furnace space and the rear furnace space, and the length of the front heat radiation plate and the rear heat radiation plate is not less than 68% of the length of the main furnace space;

C. Set a primary catalytic chamber above the inlet of the organic waste gas, set a primary catalytic heating pipe in front of the inlet of the primary catalytic chamber, and set a circulating fan at the outlet of the primary catalytic chamber;

D. Organic waste gas is catalytically burned in the primary catalytic chamber to form circulating hot air;

E. Next, the circulating fan sends the circulating hot air after catalytic combustion into the circulating hot air channel;

F. Next, the circulating hot air enters the rear heat box with the heat radiation plate as the bottom plate, and then the circulating hot air enters the front heat box with the heat radiation plate as the bottom plate through the connecting pipe;

G. Next, the circulating hot air comes out from the front heat box and enters the secondary catalytic chamber. The heat energy of the secondary catalytic combustion is exchanged in the heat exchanger, and the fresh air pressed in by the fresh air fan is heated to form new hot air;

H. Next, the new hot air is ejected from the air outlet through the new hot air channel, enters the forehearth space, and bakes the fine wire, and the organic waste gas escaping from the fine wire enters the organic waste gas inlet;

I. The fine wire runs forward and enters the rear furnace space, and organic waste gas continues to escape from the fine wire, and this part of organic waste gas also enters the organic waste gas inlet;

J. Observe whether the catalytic combustion heat energy reaches the independent operation state, if not, then run step K downward; if it is reached, then run step L;

K. Go to step D.

L. After the catalytic combustion heat reaches a normal cycle, all or part of the main furnace heating tube, the primary catalytic heating tube, and the secondary catalytic heating tube are cut off;

M. Go to step D.

In each step of realizing the above method, the main furnace heating tube, the primary catalytic heating tube, the secondary catalytic heating tube, the front hot box, the rear hot box, the circulating hot air duct, the circulating fan, the primary catalytic chamber, the heat exchanger, the secondary The secondary catalytic chamber and the exterior of the new hot air duct are equipped with heat preservation parts.

In step C of the above method, there are more than one connecting pipes arranged at intervals in the organic waste gas inlet.

In the above method, the front heat radiation plate and the rear heat radiation plate are metal plates.

Design and manufacture a device for utilizing catalytic heat energy in a micro-wire enamelling machine that realizes the above method. The device is based on a main furnace body equipped with a main furnace heating tube, a primary catalytic heating tube, a circulating fan, a heat exchanger, and a primary catalytic chamber;

The device also includes:

An organic waste gas inlet, located at the junction of the forehearth space and the back furnace space, offset from the position of the forehearth space, the organic waste gas inlet absorbs the organic waste gas escaping from the fine line;

A front heat radiation plate and a rear heat radiation plate are arranged above the front furnace space and the rear furnace space;

The length of the front heat radiation plate and the rear heat radiation plate is not less than 68% of the length of the main furnace space;

A primary catalytic chamber is arranged above the inlet of the organic waste gas, a primary catalytic heating pipe is arranged in front of the inlet of the primary catalytic chamber, and a circulating fan is arranged at the outlet of the primary catalytic chamber;

A circulating hot air duct is connected with a circulating fan to send the catalytically combusted circulating hot air into the rear hot box.

The rear heat radiation plate is the bottom plate of the rear heat box, and the front heat radiation plate is the bottom plate of the front heat box.

There is at least one communication pipe between the front heat box and the rear heat box, through which circulating hot air passes.

The main furnace heating pipe, the primary catalytic heating pipe, the front heating box, the rear heating box, the circulating hot air duct, the circulating fan and the primary catalytic chamber are all equipped with heat preservation parts.

Compared with the prior art, the micro-wire enamelling machine of the present invention utilizes the method and equipment of catalytic heat energy, and is specially used for processing enameled wires of about 0.05 mm in diameter. Since the catalytic heat energy is fully utilized, and the contact between organic waste gas and enameled wires is completely eliminated, Thereby ensuring the quality of the enameled wire.

The outstanding technical contribution of the present invention is the use of a super-large-area heat radiation plate, which can fully heat the heat radiation plate with catalytic heat energy, reasonably determine the position of the organic waste gas inlet, and reasonably drive the flow of the organic waste gas. Therefore, the present invention has an outstanding energy-saving effect: the daily power consumption is only 300 degrees, and compared with similar equipment, it can save more than 30% of electricity.

Description of drawings

Fig. 1 is a schematic diagram of the method and equipment for utilizing catalytic heat energy in the micro-wire enamelling machine of the present invention.

The reference number in the figure: 100 fine lines.

1 circulating fan, 2 primary catalytic chamber, 3 fresh air fan.

4 heat exchangers, 5 secondary catalytic chambers.

9 main furnace body, 11 circulating fan motor, 12 circulating hot air passage, 13 rear hot box.

14 rear heat radiation panels, 15 connecting pipes, 16 front heat boxes 16.

17 front heat radiation panels, 18 organic waste gas inlets.

41 new hot air duct, 42 air outlet.

51 secondary catalytic heating tube, 52 main furnace heating tube, 53 primary catalytic heating tube.

61 front furnace space, 62 rear furnace space, 64 heat preservation department.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

The preferred embodiment shown in Figure 1,

Carry out a kind of method that micro-wire enamelling machine utilizes catalytic heat energy, described method is based on the enamelling machine that the main furnace body of main furnace heating pipe 52, circulation fan 1, heat exchanger 4 and primary catalytic chamber 2 are installed; Heating pipe 52 is used for preheating process;

The method comprises the steps of:

A. First, an organic waste gas inlet 18 is provided at the junction of the forehearth space 61 and the rear furnace space 62. The organic waste gas inlet 18 is located in the middle of the main furnace body and is biased towards the forehearth space 61. The organic waste gas inlet 18 absorbs Organic waste gas escaping from the fine line 100;

B. Set the front heat radiation plate 17 and the rear heat radiation plate 14 above the front furnace space 61 and the rear furnace space 62, the length of the front heat radiation plate 17 and the rear heat radiation plate 14 is not less than 68% of the length of the main furnace space %;

C. Set a primary catalytic chamber 2 above the organic waste gas inlet 18, set a primary catalytic heating pipe 53 in front of the inlet of the primary catalytic chamber 2, and set a circulating fan 1 at the outlet of the primary catalytic chamber 2;

D. The organic waste gas is catalytically burned in the primary catalytic chamber 2 to form circulating hot air;

E. Next, the circulation fan 1 sends the circulation hot air after the catalytic combustion into the circulation hot air duct 12;

F. Next, the circulating hot air enters the back heat box 13 with the heat radiation plate 14 as the base plate, and then the circulated hot air enters the front heat box 16 with the heat radiation plate 17 as the base plate through the communication pipe 15;

G. Next, the circulating hot air enters the secondary catalytic chamber 5 from the front hot box 16, and the heat energy of the secondary catalytic combustion is exchanged in the heat exchanger 4, and the fresh air pressed in by the fresh air blower 3 is heated to form new hot air;

H. Next, the new hot air is ejected from the air outlet 42 through the new hot air passage 41, enters the forehearth space 61, and bakes the fine wire 100, and the organic waste gas escaping from the fine wire 100 enters the organic waste gas inlet 18;

I. The fine line 100 moves forward and enters the rear furnace space 62, and organic waste gas continues to escape from the fine line 100, and this part of the organic waste gas also enters the organic waste gas inlet 18;

J. Observe whether the catalytic combustion heat energy reaches the independent operation state, if not, then run step K downward; if it is reached, then run step L;

K. Go to step D.

L. After the catalytic combustion heat reaches a normal cycle, the main furnace heating tube 52, the primary catalytic heating tube 53, and the secondary catalytic heating tube 51 are all or partially powered off;

M. Go to step D.

In each step of realizing above-mentioned method, main furnace heating tube 52, primary catalytic heating tube 53, secondary catalytic heating tube 51, front hot box 16, rear hot box 13, circulating hot air duct 12, circulating fan 1, primary catalytic The chamber 2 , the heat exchanger 4 , the secondary catalytic chamber 5 , and the new hot air duct 41 are all equipped with heat preservation parts 64 .

In step C, there are more than one communication pipes 15 arranged at intervals in the organic waste gas inlet 18 .

The front heat radiation plate 17 and the rear heat radiation plate 14 adopt metal plates.

Design and manufacture a kind of equipment for micro-wire enamelling machine to use catalytic heat energy. The equipment is based on the main furnace body 9 installed with the main furnace heating pipe 52, the primary catalytic heating pipe 53, the circulating fan 1, the heat exchanger 4 and the primary catalytic chamber 2. ;

The equipment includes:

An organic waste gas inlet 18, located at the junction of the forehearth space 61 and the back furnace space 62, biased to the position of the forehearth space 61, the organic waste gas inlet 18 absorbs the organic waste gas escaping from the fine wire 100;

A front heat radiation plate 17 and a rear heat radiation plate 14 are arranged above the front furnace space 61 and the rear furnace space 62;

The length of the front heat radiation plate 17 and the rear heat radiation plate 14 is not less than 68% of the length of the main furnace space;

A primary catalytic chamber 2 is set above the organic waste gas inlet 18, a primary catalytic heating pipe 53 is provided in front of the inlet of the primary catalytic chamber 2, and a circulating fan 1 is provided at the outlet of the primary catalytic chamber 2;

A circulating hot air channel 12 is connected with the circulating fan 1 to send the catalytically combusted circulating hot air into the rear hot box 13 .

The rear heat radiation plate 14 is the bottom plate of the rear heat box 13 , and the front heat radiation plate 17 is the bottom plate of the front heat box 16 .

There is at least one communication pipe 15 between the front heat box 16 and the rear heat box 13, through which circulating hot air passes.

The main furnace heating pipe 52 , the primary catalytic heating pipe 53 , the front hot box 16 , the rear hot box 13 , the circulating hot air duct 12 , the circulating fan 1 and the primary catalytic chamber 2 are all provided with a thermal insulation portion 64 .

To sum up, the present invention breaks through a forbidden area, that is, how to achieve baking based on catalytic heat energy in the fine wire enamelling machine, because at this time, the organic waste gas must be completely shielded to prevent the ultrafine particles from adhering to the surface. Enameled wire affects the quality of enameled wire.

The micro-wire enamelling machine of the present invention utilizes the method and equipment of catalytic heat energy, and is specially used for processing enameled wires of about 0.05 mm in diameter. Since the catalytic heat energy is fully utilized, and the contact between organic waste gas and enameled wires is completely eliminated, the quality of enameled wires is guaranteed.

The outstanding technical contribution of the present invention is the use of a super-large-area heat radiation plate, which can fully heat the heat radiation plate with catalytic heat energy, reasonably determine the position of the organic waste gas inlet, and reasonably drive the flow of the organic waste gas. Therefore, the present invention has an outstanding energy-saving effect: the daily power consumption is only 300 degrees, and compared with similar equipment, it can save more than 30% of electricity.

The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction or replacement can be made, which should be regarded as belonging to the protection scope of the present invention.

Claims (8)

1. microwire enamelling machine utilizes the method for catalytic heat energy, and described method is based on the enamelling machine of the main furnace body that main stove heating tube (52) has been installed, circulating fan (1), heat exchanger (4) and primary catalyst chamber (2); Described main stove heating tube (52) is used for preheating procedure;

It is characterized in that described method comprises the steps:

A. at first the intersection in forehearth space (61) and stove space, back (62) is provided with organic exhaust gas entrance (18), described organic exhaust gas inlet (18) is positioned at the relatively position in forehearth space (61), main furnace body middle part, and described organic exhaust gas inlet (18) absorbs by glass-coated microwire (100) goes up the organic exhaust gas of overflowing;

B., preceding heat radiation plate (17) and back heat radiation plate (14) are set in the top in forehearth space (61) and stove space, back (62), and the length of described preceding heat radiation plate (17) and back heat radiation plate (14) is not less than 68% of main stove space length;

C. in organic exhaust gas inlet (18) top primary catalyst chamber (2) is set, a catalysis heating tube (53) is set, circulating fan (1) is set in the exit of primary catalyst chamber (2) in import the place ahead of primary catalyst chamber (2);

D. organic exhaust gas forms circulating air at primary catalyst chamber (2) catalytic combustion;

E. next circulating fan (1) is sent the circulating air behind the catalytic combustion into circulating hot air channel (12);

F. next, heat radiation plate after circulating air enters (14) is the rear hot box of base plate (13), and circulating air is the preceding hot case (16) of base plate by heat radiation plate (17) before entering communicating pipe (15) then;

G. next, circulating air hot case (16) in the past comes out to enter quadric catalysis chamber (5), and the heat energy of quadric catalysis burning carries out heat exchange at heat exchanger (4), will be heated by the new wind that new wind blower fan (3) is pressed into, and forms new hot blast;

H. next new hot blast by air outlet (42) ejection, enters forehearth space (61) through new hot-flow flue (41), and glass-coated microwire (100) is cured, and glass-coated microwire (100) is gone up the organic exhaust gas of overflowing and entered organic exhaust gas inlet (18);

I. glass-coated microwire (100) moves forward, enters stove space (62), back, continues to have organic exhaust gas to overflow from glass-coated microwire (100), and this part organic exhaust gas also enters organic exhaust gas inlet (18);

J. observe catalytic combustion thermal energy whether reach the independent operating state, as do not reach then downward operating procedure K; If reach, operating procedure L then;

K. change step D.

L. after catalytic combustion thermal energy reaches normal circulation, main stove heating tube (52), a catalysis heating tube (53), all or part of being de-energized of quadric catalysis heating tube (51);

M. change step D.

2. microwire enamelling machine according to claim 1 utilizes the method for catalytic heat energy, it is characterized in that:

State in realization in each step of method, main stove heating tube (52), a catalysis heating tube (53), quadric catalysis heating tube (51), preceding hot case (16), rear hot box (13), circulating hot air channel (12), circulating fan (1), primary catalyst chamber (2), heat exchanger (4), quadric catalysis chamber (5), new hot-flow flue (41) outside all are provided with insulation portion (64).

3. microwire enamelling machine according to claim 1 utilizes the method for catalytic heat energy, it is characterized in that:

In step C, described communicating pipe (15) is more than one, is spaced in organic exhaust gas inlet (18).

4. microwire enamelling machine according to claim 1 utilizes the method for catalytic heat energy, it is characterized in that:

Heat radiation plate (17) and back heat radiation plate (14) adopt metallic plate before described.

5. microwire enamelling machine utilizes the equipment of catalytic heat energy, based on the main furnace body (9) that main stove heating tube (52), a catalysis heating tube (53) have been installed, circulating fan (1), heat exchanger (4) and primary catalyst chamber (2);

It is characterized in that described equipment comprises:

One organic exhaust gas enters the mouth (18), is positioned at the boundary in forehearth space (61) and stove space, back (62), is partial to the position in forehearth space (61), and described organic exhaust gas inlet (18) absorbs the organic exhaust gas of upward being overflowed by glass-coated microwire (100);

A heat radiation plate (17) and a back heat radiation plate (14) are arranged on the top in forehearth space (61) and stove space, back (62) before one;

The length of heat radiation plate (17) and back heat radiation plate (14) is not less than 68% of main stove space length before described;

A primary catalyst chamber (2) is provided with in organic exhaust gas inlet (18) top, in import the place ahead of primary catalyst chamber (2) a catalysis heating tube (53) is set, and in the exit of primary catalyst chamber (2) circulating fan (1) is set;

One circulating hot air channel (12) connects circulating fan (1) circulating air behind the catalytic combustion is sent into rear hot box (13).

6. microwire enamelling machine according to claim 5 utilizes the equipment of catalytic heat energy, it is characterized in that:

Described back heat radiation plate (14) is the base plate of rear hot box (13), and described preceding heat radiation plate (17) is the base plate of preceding hot case (16).

7. microwire enamelling machine according to claim 6 utilizes the equipment of catalytic heat energy, it is characterized in that:

Between hot case (16) and the rear hot box (13) arranged at least one communicating pipe (15) before described, circulating air is by from passing through therebetween.

8. microwire enamelling machine according to claim 5 utilizes the equipment of catalytic heat energy, it is characterized in that:

Described main stove heating tube (52), a catalysis heating tube (53), preceding hot case (16), rear hot box (13), circulating hot air channel (12), circulating fan (1), primary catalyst chamber (2) outside all are provided with insulation portion (64).

Images