Kiln with double fans

Abstract

The utility model belongs to the technical field of ceramic firing, particularly relates to a kiln with double fans, and aims to solve the problems that the temperature is accurately controlled and reduced due to the fact that the air flow in different areas in the kiln cannot be accurately controlled in the prior art, and smoke dust in hot air extracted by the fans cannot be effectively utilized. The kiln comprises a kiln body, a first fan and a second fan, a preheating section and a cooling section are arranged at the two ends of the kiln body respectively, flowing of airflow in different areas in the kiln can be adjusted more accurately through a first adjusting assembly and a second adjusting assembly, and therefore the temperature in the kiln can be accurately controlled, and the cooling efficiency of the kiln is improved. By means of the dust removal assembly capable of automatically collecting dust, smoke dust and impurities are effectively removed, pumped hot air can be reused, energy consumption is reduced, the service life of the dust removal assembly is prolonged, and the heat preservation performance and the heat efficiency of the kiln are further improved due to the application of the two sets of sealing assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic firing, in particular to a kiln provided with double fans. Background Art

[0002] In ceramic firing production, dual-fan kilns are a commonly used technology. They consist of two fans rotating in opposite directions. The airflow is controlled and regulated by controlling the rotation speed of the two fans. This design can achieve two-way air supply and more precise control. When one fan obtains power, the airflow it generates automatically enters the other fan, forming an airflow exchange. The impellers of the two fans bend in opposite directions, thus rotating in opposite directions. By adjusting the motor speed of the two fans, the suction and delivery of the airflow can be flexibly controlled to meet different process requirements.

[0003] In existing dual-fan kiln technology, the size of the airflow entering the kiln is usually regulated by the fan speed to control the firing efficiency and temperature in the kiln. However, the size of the airflow in different areas inside the kiln cannot be controlled. As a result, the temperature control at each stage in the kiln can only be controlled by the fan speed. This not only increases the workload of the fan, but also reduces the accuracy of temperature control. In addition, the hot air extracted by the fan cannot be effectively utilized due to the smoke and dust inside. Therefore, we propose a kiln with dual fans to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art that the airflow size in different areas inside the kiln cannot be accurately controlled, resulting in a decrease in temperature, and the hot air extracted by the fan cannot be effectively utilized due to the smoke and dust inside. A kiln with dual fans is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A kiln with dual fans includes a kiln body, a first fan, and a second fan. A preheating section and a cooling section are provided at both ends of the kiln body, and both the preheating section and the cooling section are connected to the kiln body. The first fan is an exhaust fan, and an exhaust pipe is connected to the exhaust port of the first fan. The second fan is a blower, and an air blowing pipe is connected to the blowing port of the second fan.

[0007] wherein, a plurality of first adjustment components are arranged at equal intervals on the exhaust pipe, the number of the plurality of first adjustment components is at least four, and the plurality of first adjustment components are all connected to the interior of the kiln main body; the exhaust pipe is connected to the cooling section via a connecting pipe; a plurality of second adjustment components are arranged at equal intervals on the blowing pipe, the number of the plurality of second adjustment components is at least four, and the plurality of second adjustment components are all connected to the interior of the kiln main body; a chute is provided on the top inner wall of the preheating section and the cooling section, and a notch is opened on one side of the preheating section and the cooling section, and two chutes are respectively connected to the corresponding notches;

[0008] The kiln also includes:

[0009] The dust removal component is arranged between the first fan and the exhaust pipe, and is used to remove dust from the exhausted air so that the exhausted hot air can be reused;

[0010] Two sets of sealing components are respectively arranged inside the preheating section and the cooling section, and are used to seal the preheating section and the cooling section to prevent the loss of hot air in the kiln.

[0011] In one possible design, the first adjusting component includes a sealing cover, the top of the sealing cover is connected to the exhaust pipe, the bottom of the sealing cover is connected to the interior of the kiln body, the inner walls on both sides of the sealing cover are rotatably connected with a first rotating rod, one end of the first rotating rod extends to the outside of the sealing cover, and a first baffle is fixedly provided on the first rotating rod inside the sealing cover, a second motor is fixedly provided on one side of the sealing cover, and the output end of the second motor is fixedly connected to one end of the first rotating rod. By setting up multiple first adjusting components, the exhaust of the inside of the kiln body can be controlled in sections, thereby improving the control of the temperature inside the kiln body.

[0012] In one possible design, the second adjusting component includes a connecting pipe, one end of the connecting pipe is connected to the blowing pipe, and the other end of the connecting pipe is connected to the interior of the kiln body. The interior of the connecting pipe is rotatably connected to a second rotating rod, and the top end of the second rotating rod extends to the outside of the connecting pipe. A second baffle is fixedly provided on the second rotating rod inside the connecting pipe, and a third motor is fixedly provided on the top of the connecting pipe. The output end of the third motor is fixedly connected to the top end of the second rotating rod. By setting up multiple second adjusting components, the blowing inside the kiln body can be controlled in sections, and the air flow distribution can be controlled according to actual conditions to reduce the constant temperature difference.

[0013] In one possible design, the dust collection assembly includes a dust collection box, wherein both sides of the dust collection box are respectively provided with an air inlet and an air outlet, the air inlet is connected to the exhaust pipe, and the air outlet is connected to the suction port of the first fan, the dust collection box is fixedly provided with an isolation plate on the inside, two fixed blocks are symmetrically provided on the inner walls of both sides of the dust collection box, the tops of the two fixed blocks are symmetrically penetrated by two moving rods, the four moving rods are respectively slidably connected to the corresponding fixed blocks, the tops of the four moving rods are fixedly connected to the same vibration plate, the four moving rods are respectively provided with springs, the bottoms of the four springs respectively conflict with the tops of the corresponding fixed blocks, and the tops of the four springs conflict with the bottom of the vibration plate, a plurality of dust collecting barrels are fixedly provided on the vibration plate at equal intervals, the bottom sections of the plurality of dust collecting barrels pass through the isolation plate and are slidably connected to the isolation plate, the bottom of the dust collection box is fixedly provided with a collection box, and the collection box is connected to the interior of the dust collection box.

[0014] In a possible design, the dust removal box is located above the vibration plate and is rotatably connected to a transmission shaft. Two eccentric wheels are fixedly provided on the outer wall of the transmission shaft. One end of the transmission shaft extends to the outside of the dust collection box. A first motor is fixedly provided on one side of the dust removal box, and the output end of the first motor is fixedly connected to one end of the transmission shaft.

[0015] In a possible design, the sealing assembly includes a sealing door, on which a plurality of pulley groups are arranged at equal intervals, the pulley group consisting of two pulleys and a bearing, the two pulleys being respectively arranged at both ends of the bearing, the pulleys of the plurality of pulley groups being in contact with the bottom inner wall of the slide, a rack being fixedly provided on the top of the sealing door, a protective cover being fixedly provided on the top of the preheating section located on the upper part of the slide, a fourth motor being fixedly provided on one side of the protective cover, an output end of the fourth motor extending to the interior of the protective cover and being fixedly provided with a driving gear, the driving gear and the rack being meshed with each other, and the sealing door being located inside the slot.

[0016] In one possible design, the fan exhaust port of the first fan is connected to a heat supply pipe, which is connected to the interior of the preheating section. The hot air that is extracted and dust-reduced is sent to the preheating section through an exhaust pipe to preheat the ceramics in the preheating section, thereby improving heat utilization.

[0017] In the present application, during the kiln generation process, the first fan and the second fan are started successively, wherein the first fan is an exhaust fan, which is connected to the interior of the kiln through the exhaust pipe connected to its exhaust port and multiple first adjusting components on the exhaust pipe, and is used to extract the high-temperature gas and smoke inside the kiln; the second fan is a blower, which is connected to the interior of the kiln through the blowing pipe connected to its blowing port and multiple second adjusting components on the blowing pipe, and is used to blow fresh air or temperature-controlled gas into the interior of the kiln; a first rotating rod and a second rotating rod are respectively provided in the first adjusting component and the second adjusting component, and a first baffle and a second baffle are provided on the first rotating rod and the second rotating rod; when the second motors and the third motors on the first adjusting component and the second control group are started, the first baffle and the second baffle therein rotate with the first rotating rod and the second rotating rod, thereby adjusting the size of the channel connected to the kiln, realizing the size of the air flow entering and exhausting the air between each section, thereby realizing precise adjustment of the temperature inside the kiln.

[0018] The extracted gas is dust-removed by the dust removal component. After the gas enters the dust removal box, it is first filtered through multiple dust collection barrels, and then the filtered gas is extracted by the exhaust fan. At the same time, a transmission shaft is set in the dust removal box, and two eccentric wheels are set on the transmission shaft. When the first motor drives the transmission shaft to rotate, the eccentric wheel rotates and periodically applies pressure to the vibration plate that fixes the dust collection barrel, so that the vibration plate moves downward on the two fixed blocks. At the same time, four springs are set between the vibration plate and the fixed blocks. When the eccentric wheel is away from the vibration plate, the vibration plate is reset by the elastic force. This is repeated to achieve the effect of the vibration plate oscillating up and down, so that the dust in the dust collection barrel on the vibration plate is vibrated and leaked into the collection box. The purified hot air is sent to the preheating section through the heat supply pipe to preheat the ceramics therein, thereby improving the heat utilization efficiency.

[0019] In order to prevent the loss of hot air in the kiln and enhance the thermal insulation performance and thermal efficiency of the kiln, sealed doors are set in the preheating section and the cooling section. When they need to be closed, the fourth motor is started, and the driving gear engages with the rack on the sealed door. When the driving gear rotates, the sealed door is subjected to traction, causing the pulley group on it to move in the slide groove, thereby automatically opening or closing the sealed door.

[0020] Beneficial effects:

[0021] In the present invention, the kiln equipped with dual fans can more accurately adjust the airflow in different areas inside the kiln through the segmented control of the first regulating component and the second regulating component, thereby accurately controlling the temperature therein, reducing the constant temperature difference, and improving the firing quality of the product;

[0022] In the utility model, the kiln equipped with dual fans effectively removes smoke and impurities by means of the dust removal component, so that the extracted hot air can be reused, which significantly improves the heat utilization efficiency and reduces energy consumption.

[0023] In the utility model, the kiln provided with dual fans vibrates the dust collecting barrel by means of the first motor and the eccentric wheel, so that the dust in the dust collecting barrel automatically falls into the collection box, thereby reducing the labor intensity of manual cleaning and extending the service life of the dust removal component.

[0024] In the present invention, the kiln with dual fans effectively prevents the loss of heat in the kiln through the application of two sets of sealing components, thereby further improving the thermal insulation performance and thermal efficiency of the kiln.

[0025] In the present invention, the first regulating component and the second regulating component can more accurately regulate the airflow in different areas inside the kiln, thereby precisely controlling the temperature therein. The provision of a dust removal component that automatically collects dust not only effectively removes smoke and impurities, but also enables the extracted hot air to be reused, thereby reducing energy consumption and extending the service life of the dust removal component. The application of two sets of sealing components further improves the thermal insulation performance and thermal efficiency of the kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional structural diagram of a kiln with dual fans proposed in the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram from another perspective of a kiln with dual fans proposed in the present invention;

[0028] Figure 3 This is a schematic diagram of the internal three-dimensional structure of a dust removal component of a kiln equipped with dual fans proposed in the present invention;

[0029] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of a first regulating assembly of a kiln provided with dual fans proposed in the present invention;

[0030] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of a second adjustment component of a kiln equipped with dual fans proposed in the present invention;

[0031] Figure 6 This is a partial cross-sectional three-dimensional structural schematic diagram of a preheating section of a kiln equipped with dual fans proposed in the present invention.

[0032] Figure: 1. Kiln body; 101. Preheating section; 102. Cooling section; 2. First fan; 3. Second fan; 4. Dust removal box; 401. Air inlet; 402. Air outlet; 403. Isolation plate; 404. Fixing block; 405. Vibration plate; 406. Spring; 407. Drive shaft; 408. Eccentric wheel; 409. First motor; 410. Dust collection cylinder; 411. Collection box; 5. Exhaust pipe; 6. Heat supply pipe ;7. First adjusting component;701. Sealing cover;702. First rotating rod;703. First baffle;704. Second motor;8. Air blowing pipe;9. Second adjusting component;901. Connecting pipe;902. Second rotating rod;903. Second baffle;904. Third motor;10. Slide;11. Sealing door;12. Pulley block;13. Rack;14. Protective cover;15. Driving gear;16. Fourth motor. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] Example 1

[0035] Reference Figure 1-6 A kiln includes a kiln body 1, a first fan 2, a second fan 3, a dust removal component, two sets of sealing components and multiple adjustment components.

[0036] The kiln body 1 is an elongated structure, with a preheating section 101 and a cooling section 102 at either end. The first fan 2 is a Y5-47-8C kiln induced draft fan, its exhaust port connected to the cooling section 102 of the kiln body 1 via an exhaust pipe 5. At least four first regulating assemblies 7 are evenly distributed on the exhaust pipe 5, each of which is connected to the interior of the kiln body 1 to achieve segmented exhaust control. The second fan 3 is a kiln blower of model GY4-72, and its blowing port is connected to the inside of the kiln body 1 through the blowing pipe 8. At least four second adjustment components 9 are also evenly distributed on the blowing pipe 8, which are used to control the blowing in sections. The preheating section 101 and the cooling section 102 are both connected to the kiln body 1. Through the preheating section 101 and the kiln body 1, the waste heat in the kiln body 1 can enter the preheating section 101, thereby increasing the temperature in the preheating section 101, so that the ceramic products to be fired are gradually heated to the required temperature range to reduce the thermal stress caused by sudden temperature changes. The cooling section 102 is not only connected to the kiln body 1, but also to the outside world, and gradually reduces the temperature by natural convection and radiation heat dissipation.

[0037] The dust removal assembly is located between the first fan 2 and the exhaust pipe 5 and specifically comprises a dust removal box 4. The dust removal box 4 has an air inlet 401 and an air outlet 402. The air inlet 401 is connected to the exhaust pipe 5, while the air outlet 402 is connected to the air intake of the first fan 2. A partition plate 403 is provided inside the dust removal box 4, dividing it into upper and lower parts. During the dust removal process, the dust collecting barrel 410 on the vibration plate 405 is used to capture dust, and the eccentric wheel 408 on the transmission shaft 407 is driven to rotate by the first motor 409. The eccentric wheel 408 periodically contacts the vibration plate 405 to squeeze the vibration plate 405, causing the vibration plate 405 to move downward. At the same time, the spring 406 arranged under the vibration plate 405 can be reset when the eccentric wheel 408 is out of contact with the vibration plate 405, so that the vibration plate 405 can move up and down repeatedly to achieve the effect of up and down vibration, so that the dust falls into the collection box 411, which not only realizes dust removal but also automatically cleans the dust on the dust collecting barrel 410, thereby extending the service life of the dust removal component.

[0038] The tops of the preheating section 101 and the cooling section 102 are respectively provided with chutes 10, which are connected to the corresponding notches. The sealing assembly consists of a sealing door 11 and a driving mechanism. A pulley set 12 is installed on the sealing door 11, and the door is opened and closed by sliding the pulley in the chute 10. A rack 13 is provided on the top of the sealing door 11, which meshes with the driving gear 15 driven by the fourth motor 16 fixed in the protective cover 14. The driving gear 15 driven by the fourth motor 16 rotates, causing the sealing door 11 to be pulled, thereby realizing the automatic opening and closing of the sealing door 11. By controlling the connection between the preheating section 101 and the cooling section 102 and the kiln body 1 through the sealing assembly, not only the internal temperature of the preheating section 101 and the cooling section 102 can be controlled, but also the temperature loss in the kiln body 1 can be further controlled.

[0039] The present application can be used in the field of ceramic firing technology, and can also be used in other fields applicable to the present application.

[0040] Example 2

[0041] refer to Figure 1-5 , based on the improvement of Example 1: A kiln equipped with dual fans, which is applied to the field of ceramic firing technology, wherein the first adjustment component 7 includes a sealing cover 701, the top of which is connected to the exhaust pipe 5, and the multiple bottoms are connected to the interior of the kiln body 1. A first rotating rod 702 is provided in the sealing cover 701, on which a first baffle 703 is fixed. The first rotating rod 702 is driven to rotate by a second motor 704, and the cross-section between the first baffle 703 and the interior of the sealing cover 701 is adjusted, thereby controlling the exhaust volume. The second adjustment component 9 has a similar structure. The second baffle 903 on the second rotating rod 902 is driven to rotate by a third motor 904, and the cross-section between the second baffle 903 and the interior of the connecting pipe 901 is adjusted to achieve segmented control of the blowing volume.

[0042] The exhaust pipe 5 is also connected to the cooling section 102. The exhaust pipe 5 exhausts air from the cooling section 102, accelerating gas circulation and thereby reducing the temperature within the cooling section 102, further improving the cooling effect of the cooling section 102. The fan outlet of the first fan 2 is also connected to the heat supply pipe 6, the other end of which is connected to the interior of the preheating section 101. The hot air after dust removal is returned to the preheating section 101 through the heat supply pipe 6 to further preheat the ceramic, effectively improving heat utilization.

[0043] However, as is well known to those skilled in the art, the working principles and wiring methods of the first motor 409, the second motor 704, the third motor 904 and the fourth motor 16 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A kiln with dual fans, comprising a kiln body (1), a first fan (2) and a second fan (3), wherein a preheating section (101) and a cooling section (102) are respectively provided at both ends of the kiln body (1), and the preheating section (101) and the cooling section (102) are both connected to the kiln body (1), the first fan (2) is an exhaust fan, and the exhaust port of the first fan (2) is connected to an exhaust pipe (5), and the second fan (3) is a blower, and the blowing port of the second fan (3) is connected to an blowing pipe (8), characterized in that: in, A plurality of first adjustment components (7) are arranged at equal intervals on the exhaust pipe (5), the number of the plurality of first adjustment components (7) is at least four, and the plurality of first adjustment components (7) are all connected to the interior of the kiln main body (1); the exhaust pipe (5) is connected to the cooling section (102) through a connecting pipe; a plurality of second adjustment components (9) are arranged at equal intervals on the blowing pipe (8), the number of the plurality of second adjustment components (9) is at least four, and the plurality of second adjustment components (9) are all connected to the interior of the kiln main body (1); the top inner walls of the preheating section (101) and the cooling section (102) are both provided with chutes (10), one side of the preheating section (101) and the cooling section (102) are both provided with slots, and the two chutes (10) are respectively connected to the corresponding slots; The kiln also includes: A dust removal component is provided between the first fan (2) and the exhaust pipe (5) and is used to remove dust from the exhausted air so that the exhausted hot air can be reused; Two sets of sealing components are respectively arranged inside the preheating section (101) and the cooling section (102), and are used to seal the preheating section (101) and the cooling section (102) to prevent the loss of hot air in the kiln.

2. A kiln with dual fans according to claim 1, characterized in that: The first regulating component (7) includes a sealing cover (701), the top of the sealing cover (701) is connected to the exhaust pipe (5), the bottom of the sealing cover (701) is connected to the interior of the kiln body (1), the inner walls on both sides of the sealing cover (701) are rotatably connected to the first rotating rod (702), one end of the first rotating rod (702) extends to the outside of the sealing cover (701), and a first baffle (703) is fixedly provided on the first rotating rod (702) inside the sealing cover (701), and a second motor (704) is fixedly provided on one side of the sealing cover (701), and the output end of the second motor (704) is fixedly connected to one end of the first rotating rod (702). By arranging multiple first regulating components (7), the exhaust of the interior of the kiln body (1) can be controlled in sections, thereby improving the control of the temperature inside the kiln body (1).

3. The kiln with dual fans according to claim 1, characterized in that: The second regulating component (9) comprises a connecting pipe (901), one end of which is connected to the blowing pipe (8), and the other end of which is connected to the interior of the kiln main body (1); the interior of the connecting pipe (901) is rotatably connected to a second rotating rod (902); the top end of the second rotating rod (902) extends to the outside of the connecting pipe (901); a second baffle (903) is fixedly provided on the second rotating rod (902) inside the connecting pipe (901); a third motor (904) is fixedly provided on the top of the connecting pipe (901); the output end of the third motor (904) is fixedly connected to the top end of the second rotating rod (902); by arranging a plurality of second regulating components (9), the blowing inside the kiln main body (1) can be controlled in sections, the air flow distribution can be controlled according to actual conditions, and the constant temperature difference can be reduced.

4. The kiln with dual fans according to claim 1, characterized in that: The dust removal assembly includes a dust removal box (4), and an air inlet (401) and an air outlet (402) are respectively provided on both sides of the dust removal box (4), the air inlet (401) is connected to the exhaust pipe (5), and the air outlet (402) is connected to the air intake of the first fan (2), an isolation plate (403) is fixedly provided inside the dust removal box (4), and two fixed blocks (404) are symmetrically provided on the inner walls of both sides of the dust removal box (4), and two moving rods are symmetrically passed through the tops of the two fixed blocks (404), and the four moving rods are respectively slidably connected to the corresponding fixed blocks (404), and the tops of the four moving rods are fixedly connected The four movable rods are connected to the same vibration plate (405), and springs (406) are sleeved on the four movable rods. The bottoms of the four springs (406) are respectively in conflict with the tops of the corresponding fixed blocks (404), and the tops of the four springs (406) are in conflict with the bottom of the vibration plate (405). A plurality of dust collecting barrels (410) are fixedly arranged at equal intervals on the vibration plate (405), and the bottom sections of the plurality of dust collecting barrels (410) pass through the isolation plate (403) and are slidably connected to the isolation plate (403). A collecting box (411) is fixedly arranged at the bottom of the dust removal box (4), and the collecting box (411) is connected to the interior of the dust removal box (4).

5. The kiln with dual fans according to claim 4, characterized in that: The dust removal box (4) is located above the vibration plate (405) and is rotatably connected to a transmission shaft (407). Two eccentric wheels (408) are fixedly provided on the outer wall of the transmission shaft (407). One end of the transmission shaft (407) extends to the outside of the dust collection box. A first motor (409) is fixedly provided on one side of the dust removal box (4). The output end of the first motor (409) is fixedly connected to one end of the transmission shaft (407).

6. The kiln with dual fans according to claim 1, characterized in that: The sealing assembly includes a sealing door (11), a plurality of pulley groups (12) are arranged at equal intervals on the sealing door (11), the pulley group (12) consists of two pulleys and a bearing, the two pulleys are respectively arranged at the two ends of the bearing, the pulleys of the plurality of pulley groups (12) are in contact with the bottom inner wall of the slide groove (10), a rack (13) is fixedly arranged on the top of the sealing door (11), a protective cover (14) is fixedly arranged on the top of the preheating section (101) on the slide groove (10), a fourth motor (16) is fixedly arranged on one side of the protective cover (14), an output end of the fourth motor (16) extends to the inside of the protective cover (14) and is fixedly sleeved with a driving gear (15), the driving gear (15) and the rack (13) are meshed, and the sealing door (11) is located inside the slot.

7. The kiln with dual fans according to claim 1, characterized in that: The fan exhaust port of the first fan (2) is connected to a heat supply pipe (6), and the heat supply pipe (6) is connected to the interior of the preheating section (101). The hot air that has been extracted and dusted is sent to the preheating section (101) through the exhaust pipe (5) to preheat the ceramics in the preheating section (101), thereby improving heat utilization efficiency.

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