Catalyst drying device

Abstract

The utility model discloses a catalyst drying device which comprises an air inlet fan, an electric heater, a corrugated pipe, an air inlet cover, a mold, an air collecting cover, an exhaust fan and a supporting table. An air outlet of the air inlet fan is connected with an air inlet of the electric heater; one end of the corrugated pipe is connected with the air outlet of the electric heater, and the other end is connected with the air inlet of the air inlet cover; the two ends of the mold are in sealed connection with an air outlet of the air inlet hood and an air inlet of the air collecting hood respectively, and an air outlet of the air collecting hood is connected with an air inlet of the exhaust fan; a sliding rail is arranged on the supporting table; the gas inlet cover and the gas collecting cover are respectively arranged on the slide rail in a sliding manner and are respectively provided with a push plate; the push plates are respectively connected with a driver; the drying process of the catalyst is conveniently achieved, the air speed in the drying process is kept uniform, the gradient of the catalyst is reduced, the adhesion amount of active substances of the air-dried catalyst is uniform, and the product percent of pass is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalysts, and in particular relates to a catalyst drying device. Background Art

[0002] While coal, as an energy source, has made significant contributions to national economic development, its development and utilization have also led to a series of environmental pollution problems, posing risks to ecological balance and human survival. NOx, emitted during coal combustion, is a major culprit of air pollution. At certain concentrations, this substance poses a threat and harm to human health. Nitrogen oxides combine with water in the air and eventually transform into nitric acid and nitrates, which fall to the ground with precipitation and dust. Nitric acid is a major cause of acid rain. Under certain conditions, it, combined with other pollutants, can produce photochemical smog, which severely damages the ecological environment and poses a serious threat to the human respiratory system.

[0003] Currently, denitrification catalysts used in domestic power plant denitrification projects are primarily classified into three types: honeycomb, plate, and corrugated plate. Catalyst drying, a crucial step in catalyst production, requires drying to remove moisture. Drying equipment can include rotary dryers, tunnel furnaces, trolley furnaces, and box furnaces. The choice of drying equipment depends on the properties of the catalyst and the desired drying effect.

[0004] Most catalyst drying equipment in the prior art has poor uniformity in wind speed during the drying process and in the amount of active material attached to the catalyst after drying, which affects the product qualification rate. Utility Model Content

[0005] The purpose of this utility model is to provide a catalyst drying device that facilitates the catalyst drying process and helps maintain a uniform wind speed during the drying process, reducing catalyst gradient, ensuring a uniform amount of catalyst active material adhered after air drying, and improving product qualification rate. Catalyst gradient is an indicator of catalyst coating, used to determine whether each part of the catalyst is evenly coated.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a catalyst drying device, comprising an air intake fan, an electric heater, a bellows, an air intake hood, a mold, an air collecting hood, an exhaust fan and a support platform; the air outlet of the air intake fan is connected to the air intake of the electric heater; one end of the bellows is connected to the air outlet of the electric heater, and the other end is connected to the air inlet of the air intake hood; the two ends of the mold are respectively sealed with the air outlet of the air intake hood and the air inlet of the air collecting hood, and the air outlet of the air collecting hood is connected to the air inlet of the exhaust fan; a slide rail is provided on the support platform; the air intake hood and the air collecting hood are respectively slidably mounted on the slide rail, and are respectively provided with push plates; the push plates are respectively connected to drivers.

[0008] The catalyst drying device of the present invention is characterized in that the air intake fan is used to introduce external air and send it into the electric heater; the electric heater is used to heat the external air to the temperature required for drying the catalyst to form hot air, and send the hot air into the air intake hood through the bellows; the air intake hood is used to guide and expand the hot air flow into the mold; the mold is used to place the catalyst and use hot air to dry the catalyst therein, so that the moisture in the catalyst is mixed into the gas; the gas collection hood is used to collect the gas with moisture in the catalyst and send it into the exhaust fan; the exhaust fan is used to discharge the gas with moisture in the catalyst.

[0009] The support platform is used to install the guide rail and support the mold; the slide rail is used for the air intake hood and the air collecting hood to slide, so that the air intake hood and the air collecting hood are moved to the mold for connection; the driver is used to push the push plate to realize the movement of the air intake hood and the air collecting hood on the slide rail; the bellows is used to cooperate with the extension and contraction when the air intake hood moves.

[0010] Preferably, the air inlet of the intake fan and the air outlet of the exhaust fan are respectively installed with temperature sensors, the temperature sensors are respectively connected to controllers, and the controller is connected to the electric heater.

[0011] The temperature sensors are used to detect the gas temperature at the air inlet of the intake fan and the air outlet of the exhaust fan, and send the temperature information to the controller; the controller is used to control the start, heating temperature or stop of the electric heater according to the temperature information.

[0012] Preferably, a support frame is provided on the support platform, and the mold is provided on the support frame; a photoelectric proximity switch is installed on the support frame, and the photoelectric proximity switch and the driver are respectively connected to the controller.

[0013] The support frame is used to place the mold; the photoelectric proximity switch is used to detect that the mold is placed in place on the support frame, and then transmit the positioning information to the controller. The controller controls the driver to push the push plate and the air intake hood or the air collecting hood on the slide rail to move to the mold for connection.

[0014] Preferably, silicone sealing rings are respectively provided between the two ends of the mold and the air outlet of the air inlet hood and the air inlet of the air collecting hood, and the silicone sealing rings are used to ensure sealing.

[0015] Preferably, two slide rails are provided, and sliders are provided at the bottom of the air intake hood and the air collection hood, respectively, and the sliders are slidably mounted on the slide rails. The sliders are used to drive the air intake hood and the air collection hood to move on the slide rails.

[0016] Preferably, the slide rail is configured as a round rod, the bottom surface of the slider is provided with an arc-shaped sliding groove, and the slide rail is arranged in the sliding groove.

[0017] Preferably, the driver is mounted on the support platform.

[0018] Preferably, the push plates are respectively connected to the bottom of the air inlet hood and the air collecting hood.

[0019] Preferably, the air intake hood and the air collecting hood are both configured as funnel structures, and the inlet ends of the two funnel structures are arranged opposite to each other; the two ends of the mold are respectively connected to the inlet ends of the two funnel structures, the outlet end of the funnel structure of the air intake hood is connected to the other end of the bellows, and the outlet end of the funnel structure of the air collecting hood is connected to the air inlet of the exhaust fan.

[0020] Preferably, the air outlet of the exhaust fan is connected to a smoke exhaust duct. The smoke exhaust duct is used to facilitate gas discharge.

[0021] The catalyst drying device provided by the utility model has the following beneficial effects:

[0022] 1. The catalyst drying device provided by the utility model can facilitate the catalyst drying process; the two ends of the mold are sealed with the air outlet of the air inlet hood and the air inlet of the air collecting hood, which is conducive to maintaining uniform wind speed during the drying process, reducing the catalyst gradient, and facilitating uniform adhesion of the catalyst active material after air drying, thereby improving the product qualification rate.

[0023] 2. The catalyst drying device provided by the utility model is easy to design and manufacture in a miniaturized manner, reduces the volume and occupancy space, and is convenient to move and place.

[0024] 3. The catalyst drying device provided by the utility model, the air inlet fan, the electric heater, the air outlet fan and other equipment are easy to start and stop independently, and are easy to operate and control at any time.

[0025] 4. The catalyst drying device provided by the utility model is more energy-saving and environmentally friendly than the existing tunnel furnace, trolley furnace and other air-drying equipment.

[0026] 5. The catalyst drying device provided by the present invention adopts external air for heating and dries the catalyst through an external circulation air mode, which is beneficial to the discharge of moisture from the catalyst and improves the drying effect and efficiency. However, the internal circulation gas mode of the drying equipment such as the tunnel furnace and trolley furnace in the existing technology leads to a high moisture content in the circulating air, which is not easy to be discharged and reduces the drying speed of the catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a front view of a catalyst drying device provided in one embodiment of the present utility model.

[0028] Figure 2 It is a left side view of a catalyst drying device provided in one embodiment of the present utility model.

[0029] Figure 3 It is a left side view of the electric heater of the catalyst drying device provided in one embodiment of the present utility model.

[0030] Reference numerals in the figures:

[0031] 1 is the air intake fan, 2 is the electric heater, 3 is the bellows, 4 is the air intake hood, 5 is the mold, 510 is the reinforcing rib, 6 is the air collecting hood, 461 is the push plate, 462 is the driver, 463 is the slider, 7 is the exhaust fan, 8 is the support platform, 810 is the slide rail, 811 is the slide rail bracket, 820 is the support frame, 830 is the support column, and 9 is the smoke exhaust duct. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below through the accompanying drawings and specific implementation methods.

[0033] Example

[0034] Please refer to Figure 1 and Figure 2This embodiment provides a catalyst drying device, including an air intake fan 1, an electric heater 2, a bellows 3, an air intake hood 4, a mold 5, an air collecting hood 6, an exhaust fan 7 and a support platform 8; the air outlet of the air intake fan 1 is connected to the air intake of the electric heater 2; one end of the bellows 3 is connected to the air outlet of the electric heater 2, and the other end is connected to the air intake of the air intake hood 4; the two ends of the mold 5 are respectively sealed with the air outlet of the air intake hood 4 and the air inlet of the air collecting hood 6, and the air outlet of the air collecting hood 6 is connected to the air inlet of the exhaust fan 7; a slide rail 810 is provided on the support platform 8; the air intake hood 4 and the air collecting hood 6 are respectively slidably installed on the slide rail 810, and are respectively provided with a push plate 461; the push plate 461 is respectively connected to the driver 462.

[0035] The catalyst drying device of this embodiment, when used, may include the following steps:

[0036] Put the catalyst into the mold 5;

[0037] Place the mold 5 containing the catalyst on the support table 8;

[0038] By extending and retracting the bellows 3, the air intake hood 4 is moved on the slide rail 810 to one end of the mold 5, and then the air outlet of the air intake hood 4 is sealed and connected to one end of the mold 5;

[0039] Move the air collecting hood 6 on the slide rail 810 toward the mold 5 to the other end of the mold 5, and then seal the air inlet of the air collecting hood 6 to the other end of the mold 5;

[0040] Start the air intake fan 1, electric heater 2 and exhaust fan 7, and introduce air into the electric heater 2 through the air intake fan 1 to heat it to form hot air at the required temperature; the hot air enters the mold 5 through the bellows 3 and the air intake hood 4, and after drying the catalyst, the gas carrying moisture in the catalyst is discharged through the gas collecting hood 6 and exhaust fan 7. Figure 1 The solid arrows in the middle indicate the gas flow direction. Figure 1 The dotted lines of the middle air inlet hood 4 and the air collecting hood 6 respectively represent their moving positions.

[0041] The catalyst drying device of this embodiment facilitates the catalyst drying process; the two ends of the mold 5 are sealedly connected to the air outlet of the air inlet hood 4 and the air inlet of the air collecting hood 6, which is beneficial to maintaining a uniform wind speed during the drying process, reducing the catalyst gradient, and facilitating a uniform adhesion amount of the catalyst active material after air drying, thereby improving the product qualification rate.

[0042] Specifically, the air inlet of the intake fan 1 and the air outlet of the exhaust fan 7 are respectively installed with temperature sensors, the temperature sensors are respectively connected to the controller, and the controller is connected to the electric heater 2; the controller can receive the temperature information of the air entering and exiting the catalyst drying device, and control the start, heating temperature and stop of the electric heater 2 according to the temperature information.

[0043] Please refer to Figure 1 Specifically, a support frame 820 is provided on the support table 8, and the mold 5 is provided on the support frame 820; a photoelectric proximity switch is installed on the support frame 820, and the photoelectric proximity switch and the driver 461 are respectively connected to the controller; thereby facilitating the placement of the mold 5, and also facilitating the photoelectric proximity switch to detect that the mold 5 is placed in place on the support frame 820, and the controller controls the driver 461 to drive the air inlet hood 4 and the air collecting hood 6 to move to the two ends of the mold 5 respectively and seal them.

[0044] Specifically, silicone sealing rings are respectively provided between the two ends of the mold 5 and the air outlet of the air inlet hood 4 and the air inlet of the air collecting hood 6, so as to ensure that the two ends of the mold 5 are sealed and connected to the air inlet hood 4 and the air collecting hood 6 respectively.

[0045] Please refer to Figure 2 Specifically, two slide rails 810 are provided, and sliders 463 are respectively provided at the bottom of the air intake hood 4 and the air collecting hood 6, and the sliders 463 are slidably installed on the slide rails 810; thereby facilitating the air intake hood 4 and the air collecting hood 6 to be stably slidably installed on the slide rails 810 through the sliders 463, and the sliding balance stability of the air intake hood 4 and the air collecting hood 6 is improved by the two slide rails 810.

[0046] Specifically, the slide rail 810 is set as a round rod, and the bottom surface of the slider 463 is provided with an arc-shaped groove. The slide rail 810 is set in the sliding groove, so that the slide rail 810 can be extended from one end of the slider 463 into the sliding groove, and the slider 463 and the slide rail 810 can be quickly and reliably slidably connected.

[0047] Please refer to Figure 1 and Figure 2 Specifically, the driver 462 is installed on the support platform 8, which facilitates the installation of the driver 462 and also facilitates the two drivers 462 to contact the push plates 461 that push the air intake hood 4 and the air collecting hood 6 respectively.

[0048] Specifically, the push plate 461 is connected to the bottom of the air inlet hood 4 and the air collecting hood 6 respectively, so as to facilitate the effective contact between the push plate 461 and the driver 462.

[0049] Specifically, the air intake hood 4 and the air collecting hood 6 are both configured as funnel structures, and the inlet ends of the two funnel structures are arranged opposite to each other; the two ends of the mold 5 are respectively connected to the inlet ends of the two funnel structures, the outlet end of the funnel structure of the air intake hood 4 is connected to the other end of the bellows 3, and the outlet end of the funnel structure of the air collecting hood 6 is connected to the air inlet of the exhaust fan 7; thereby facilitating the hot air to enter the mold 5 after the air flow is expanded through the funnel structure of the air intake hood 4, dry the catalyst, and then be collected by the funnel structure of the air collecting hood 6 and enter the exhaust fan 7 for discharge.

[0050] Please refer to Figure 1 Specifically, the air outlet of the exhaust fan 7 is connected to the smoke exhaust duct 9, so that the exhaust fan 7 is combined with the smoke exhaust duct 9 to discharge air.

[0051] For more details, please refer to Figures 1 to 3 The electric heater 2 includes a housing and an electric heating plate. The electric heating plate is mounted on the bottom surface of the housing and is connected to a power supply via a power cord. The electric heating plate is constructed of coiled resistance wire. The housing is a rectangular box. The air intake fan 1 is mounted on the housing of the electric heater 2 and is located on the side of the air inlet of the electric heater 2.

[0052] Please refer to Figure 1 and Figure 2 The support platform 8 is disposed above the housing of the electric heater 2 and connected to the housing of the electric heater 3 via support columns 830. Two or more support columns 830 may be provided as needed. The support platform 8 is configured as a horizontal rectangular platform. The support columns 830 are configured as vertical rectangular columns.

[0053] Please refer to Figure 1 , the air intake hood 4 and the air collecting hood 6 are configured as a transverse funnel structure, that is, the air intake hood 4 and the air collecting hood 6 are configured as a transverse conical tube with an opening size at one end smaller than the opening size at the other end, wherein the end with the larger opening size is the inlet end of the funnel structure, and the end with the smaller opening size is the outlet end of the funnel structure. The air inlet of the air intake hood 4 is configured as the outlet end of its funnel structure, and the air outlet is configured as the inlet end of its funnel structure. The air intake of the air collecting hood 6 is configured as the inlet end of its funnel structure, and the air outlet is configured as the outlet end of its funnel structure. That is, the ends with larger opening sizes of the air intake hood 4 and the air collecting hood 6 are arranged opposite to each other, and are respectively located on both sides of the mold 5.

[0054] Please refer to Figure 1 and Figure 2 The cross section of the funnel structure of the air inlet hood 4 and the air collecting hood 6 is set to be a square ring. The mold 5 is set to be a horizontal rectangular tube.

[0055] The mold 5 is connected to the air intake hood 4 and the air collection hood 6 by screws. Silicone sealing rings are installed at the connection points between the mold 5, the air intake hood 4, and the air collection hood 6. Alternatively, the two ends of the mold 5 snap together and fit within the inlet ends of the funnel structures of the air intake hood 4 and the air collection hood 6, respectively; or the inlet ends of the air intake hood 4 and the air collection hood 6 snap together and fit within the two ends of the mold 5, respectively; silicone sealing rings are installed at the snap-fitting positions. The silicone sealing rings are in contact with the mold 5 and the air intake hood 4, or the mold 5 and the air collection hood 6, to achieve a seal.

[0056] Please refer to Figure 1 The support frame 820 is configured as a horizontal rectangular block and is placed on the support platform 8. The outer wall of the mold 5 is sleeved with a rectangular ring-shaped reinforcing rib 510. When the mold 5 is placed on the support frame 820, the bottom surface of the reinforcing rib 510 contacts the top surface of the support frame 820.

[0057] Please refer to Figure 1 and Figure 2 Push plate 461 is configured as a vertical rectangular plate. The bottom surfaces of the inlet ends of the funnel structures of the air intake hood 4 and the air collection hood 6 are connected to the top surface of push plate 461. The air intake hood 4 and the air collection hood 6 are connected to push plate 461 as an integral structure. A driver 462 is configured as a motor, hydraulic rod, or cylinder. The output end of driver 462 is connected to push plate 461 to achieve pushing and pulling of push plate 461.

[0058] The slide rail 810 is configured as a horizontal rod. The bottom surface of the slide rail 810 is connected to the top surface of the support platform 8 via a slide rail bracket 811. The cross section of the slide rail bracket 811 is configured as an isosceles triangle to improve stability.

[0059] Slider 463 is a rectangular block. The bottom surfaces of the inlet ends of the funnel structures of the air intake hood 4 and air collection hood 6 are connected to the top surface of slider 463. The air intake hood 4 and air collection hood 6 are connected to slider 463 as an integral structure. A sliding groove is defined on the bottom surface of slider 463 and is configured as a large semicircular through-hole. The inner diameter of the sliding groove is larger than the outer diameter of the slide rail 810, facilitating a secure and slidable fit of the slide rail 810 within the sliding groove.

[0060] Please refer to Figure 2 , the two slide rails 810 are parallel. The two sliders 463 of the air inlet cover 4 and the air collecting cover 6 are respectively arranged on both sides of the push plate 461.

[0061] Please refer to Figure 1 The smoke exhaust pipe 9 is set as a vertical square pipe or round pipe. The controller adopts PLC.

[0062] According to actual needs, the air intake fan 1, the electric heater 2, the driver 462, the exhaust fan 7, the temperature sensor, the photoelectric proximity switch and the controller can all adopt existing technology products.

[0063] The above embodiments are provided for illustrative purposes only and are not intended to limit the scope of implementation. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to provide an exhaustive list of all implementations. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

[0064] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0065] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to has a specific orientation, is constructed and operates in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0066] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A catalyst drying device, characterized in that: It includes an air intake fan, an electric heater, a bellows, an air intake hood, a mold, an air collecting hood, an exhaust fan and a support platform; The air outlet of the air intake fan is connected to the air inlet of the electric heater; one end of the bellows is connected to the air outlet of the electric heater, and the other end is connected to the air inlet of the air intake hood; The two ends of the mold are respectively sealed with the air outlet of the air inlet hood and the air inlet of the air collecting hood, and the air outlet of the air collecting hood is connected to the air inlet of the exhaust fan; The support platform is provided with a slide rail; the air inlet hood and the air collecting hood are respectively slidably mounted on the slide rail and are respectively provided with a push plate; the push plates are respectively connected to a driver.

2. The catalyst drying device according to claim 1, characterized in that: The air inlet of the air intake fan and the air outlet of the exhaust fan are respectively installed with temperature sensors, and the temperature sensors are respectively connected to controllers, and the controller is connected to the electric heater.

3. The catalyst drying device according to claim 2, characterized in that: A support frame is provided on the support platform, and the mold is provided on the support frame; a photoelectric proximity switch is installed on the support frame, and the photoelectric proximity switch and the driver are respectively connected to the controller.

4. The catalyst drying device according to claim 1, characterized in that: Silicone sealing rings are respectively provided between the two ends of the mold and the air outlet of the air inlet hood and the air inlet of the air collecting hood.

5. The catalyst drying device according to claim 1, characterized in that: Two slide rails are provided, and sliders are respectively provided at the bottom of the air inlet hood and the bottom of the air collecting hood, and the sliders are slidably mounted on the slide rails.

6. The catalyst drying device according to claim 5, characterized in that: The slide rail is configured as a round rod, and the bottom surface of the slider is provided with an arc-shaped sliding groove, in which the slide rail is arranged.

7. The catalyst drying device according to claim 1, characterized in that: The driver is mounted on the support platform.

8. The catalyst drying device according to claim 1, characterized in that: The push plates are respectively connected to the bottom of the air inlet hood and the air collecting hood.

9. The catalyst drying device according to claim 1, characterized in that: The air intake hood and the air collecting hood are both configured as funnel structures, and the inlet ends of the two funnel structures are arranged opposite to each other; the two ends of the mold are respectively connected to the inlet ends of the two funnel structures, the outlet end of the funnel structure of the air intake hood is connected to the other end of the bellows, and the outlet end of the funnel structure of the air collecting hood is connected to the air inlet of the exhaust fan.

10. The catalyst drying device according to any one of claims 1 to 9, characterized in that: The air outlet of the exhaust fan is connected to the smoke exhaust duct.

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