Background
Hydrogenation catalysts refer to catalysts used in the addition of compounds to hydrogen, and commonly used metal catalysts, metal oxide or sulfide catalysts, complex catalysts, typically alumina supports, having a group VIII transition metal element. The dry rubber powder is an important fine chemical product, has abundant micropore structure, large surface area and proper surface acidity and alkalinity, and is widely used as an adsorbent, a desiccant, a catalyst or a catalyst carrier in the fields of oil refining, rubber, chemical fertilizers, chemical industry, petrochemical industry and the like. In the preparation process of the hydrogenation catalyst, neutralization is needed to form gel, then slurry aging is carried out under a certain temperature condition, and the amorphous silica-alumina dry gel powder is obtained through filtration, washing, drying and crushing, thus obtaining the hydrogenation catalyst carrier.
In the step of slurry aging, many hydrogenation catalyst manufacturers directly use a conventional heat-preserving aging tank in the prior art, and in order to ensure the production quality, some manufacturers also use special aging equipment, for example: chinese patent CN115138312a discloses an aging device for preparing hydrogenation catalyst. However, a large amount of solid materials and liquid materials exist in the slurry, a conventional conveying pipe is combined with a conveying pump to discharge, solid and liquid are discharged simultaneously in the discharging process, and the solid is easy to deposit in a bent pipe part or a horizontal pipe of a discharging pipeline.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of utility model
The utility model aims at overcoming the defects of the prior art, and provides an aging device for preparing a hydrogenation catalyst.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
An aging device for preparing a hydrogenation catalyst comprises a frame and an aging tank arranged on the frame, wherein a stirring mechanism is arranged in the aging tank, and a driving mechanism for driving the stirring mechanism is arranged at the top of the aging tank; the top surface of the aging tank is provided with a feed inlet, the side wall of the aging tank is provided with a first discharge outlet, and the bottom surface of the aging tank is provided with a second discharge outlet; a filtering mechanism is arranged in the first discharge hole, the first discharge hole is communicated with a liquid collecting device, and the second discharge hole is connected with a spiral conveying device.
The aging tank comprises a conical cylinder at the bottom, a top cover at the top and a cylinder connecting the top cover and the conical cylinder, wherein the inner diameter of the first discharge hole is larger than 2/3 of the height of the cylinder and not larger than the height of the cylinder; or the distance between the center of the first discharging hole and the lower end of the cylinder is not more than 1/3 of the height of the cylinder.
The first discharge gate and second discharge gate are provided with flange respectively, and first discharge gate flange's edge is provided with articulated seat, is provided with the pivot on the articulated seat, and the upper end of pivot upwards extends and transversely bends and form the hanging pole, is provided with the couple on the hanging pole, has hung the shrouding on the couple, and the top of shrouding is provided with the link, evenly has seted up a plurality of connecting holes on the shrouding, and the connecting hole of shrouding on shrouding connecting hole and the first discharge gate flange correspond through bolted connection.
The feed inlet and the first discharge outlet and the second discharge outlet are respectively provided with an adjusting valve.
The filtering mechanism is of a groove type structure, a plurality of filtering holes are uniformly formed in the bottom surface or/and the side surface of the groove type structure, the side wall of the groove type structure is cylindrical and coaxial with the first discharging hole, the edge of an opening of the groove type structure is provided with a mounting plate, and the mounting plate is located between the sealing plate and the connecting flange in an assembling state.
The mounting plate is provided with mounting holes, the mounting holes correspond to the connecting holes, and the mounting holes on the mounting plate are connected with the connecting holes of the first discharge port connecting flange through bolts.
The frame includes four sets of supporting legs, and the cross section of supporting leg is the U type, and the upper end of supporting leg is fixed in the outer wall of drum, and the lower extreme joint support board of supporting leg, backup pad level setting.
The stirring mechanism comprises a stirring shaft and a turbulent flow blade arranged on the stirring shaft, and the stirring shaft is connected with the driving mechanism.
The middle part of top cap sets up the backup pad, and the both sides of backup pad are provided with fan-shaped mouth respectively, correspond this fan-shaped hole and set up the movable cover respectively, and the top surface of movable cover is provided with the handle.
The driving mechanism comprises a driving motor, the driving motor is arranged in the middle of the supporting plate, and the feeding hole is positioned on one side of the driving motor.
Compared with the prior art, the aging device for preparing the hydrogenation catalyst has the beneficial effects that the aging device for preparing the hydrogenation catalyst is suitable for a slurry aging procedure in the preparation process of the hydrogenation catalyst. Specifically, two groups of discharge holes are formed in the aging tank, and under the condition that more liquid materials are in the slurry, the materials are discharged through a first discharge hole at the side part, and a filter mechanism is arranged at the first discharge hole, so that solid materials in the slurry are reserved in the aging tank; and the solid materials in the slurry are discharged for a period of time through the first discharge port, the first discharge port is closed again, the washing solution is added for washing, the first discharge port is opened for discharging liquid, the repeated circulation is performed until the washing process is completed, the second discharge port is opened, the materials are transported to other equipment through the spiral conveying equipment, and the subsequent drying process is facilitated.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. "mounting", "providing", "connecting" etc. may be by means conventional in the art, for example: integral arrangement, clamping installation, welding connection, bonding connection, bolt connection and the like. The specific meaning of the terms in the present utility model will be understood by those skilled in the art in specific cases, and suitable connection, arrangement or installation means will be selected in the prior art.
1-2, An aging device for preparing hydrogenation catalyst comprises a frame 1 and an aging tank 2 arranged on the frame 1, wherein a stirring mechanism is arranged in the aging tank 2, and a driving mechanism 3 for driving the stirring mechanism is arranged at the top of the aging tank 2; the top surface of the aging tank 2 is provided with a feed inlet 4, the side wall of the aging tank 2 is provided with a first discharge outlet 5, and the bottom surface of the aging tank 2 is provided with a second discharge outlet 6; a filtering mechanism is arranged in the first discharge hole 5, the first discharge hole 5 is communicated with a liquid collecting device, and the second discharge hole 6 is connected with a spiral conveying device 8. Specifically, the stirring mechanism may employ a stirring structure conventional in the art, such as: the stirring structure related in the Chinese patent CN115138312A can also adopt a conventional stirring structure with a stirring function, a heating component is additionally arranged on the stirring tank for heating and heat preservation, the heating component can be an electric heating structure, a heating interlayer can also be arranged on the aging tank, and heating is carried out by introducing a heating medium into the heating interlayer; the first discharge port 5 may be connected to a liquid collecting device through a conventional liquid conveying device such as a conveying pipe and a conveying pump, and the liquid collecting device may be a conventional liquid collecting device such as a storage tank and a collecting tank, which are not key to the solution of the present utility model, are not shown in the drawings, and are not described again. In addition, the spiral conveying equipment can adopt a commercially available conventional horizontal spiral conveyor or an inclined spiral conveyor, and a proper machine can be selected according to equipment connected with a discharge hole of the spiral conveyor; the filtering structure can adopt a conventional filtering plate, a filtering net or other filtering components, and can select a filtering structure with certain filtering hole specification according to the particle size of the solid material, and the shape specification of the outer contour of the filtering structure is matched with the inner contour of the first discharging hole.
The aging device for preparing the hydrogenation catalyst is suitable for slurry aging procedures in the preparation process of the hydrogenation catalyst. Specifically, two groups of discharge holes are formed in the aging tank, and under the condition that more liquid materials are in the slurry, the materials are discharged through a first discharge hole at the side part, and a filter mechanism is arranged at the first discharge hole, so that solid materials in the slurry are reserved in the aging tank; and the solid materials in the slurry are discharged for a period of time through the first discharge port, the first discharge port is closed again, the washing solution is added for washing, the first discharge port is opened for discharging liquid, the repeated circulation is performed until the washing process is completed, the second discharge port is opened, the materials are transported to other equipment through the spiral conveying equipment, and the subsequent drying process is facilitated.
In one embodiment, the aging tank 2 comprises a conical cylinder 10 at the bottom, a top cover 9 at the top and a cylinder 11 connecting the top cover 9 and the conical cylinder 10, wherein the inner diameter of the first discharge hole 5 is larger than 2/3 of the height of the cylinder 11 and not larger than the height of the cylinder 11, so that the liquid material in the aging tank can flow out of the first discharge hole. In another embodiment, the distance between the center of the first discharging hole and the lower end of the cylinder is not more than 1/3 of the height of the cylinder, so that the first discharging hole is closer to the lower end of the cylinder, and the liquid material in the aging tank can flow out of the first discharging hole.
In one embodiment, the first discharge port 5 and the second discharge port 6 are respectively provided with a connecting flange, the edge of the connecting flange of the first discharge port 5 is provided with a hinge seat 12, a rotating shaft 13 is arranged on the hinge seat 12, the upper end of the rotating shaft 13 extends upwards and is transversely bent to form a hanging rod, a hook is arranged on the hanging rod, a sealing plate 14 is hung on the hook, a hanging ring is arranged at the top of the sealing plate 14, a plurality of connecting holes are uniformly formed in the sealing plate 14, and the connecting holes of the sealing plate 14 are correspondingly connected with the connecting holes of the connecting flange of the first discharge port 5 through bolts. When the device is not in use, the sealing plate can be adopted to cover the first discharge hole.
In one embodiment, the feed inlet 4 and the first and second discharge outlets 6 are respectively provided with adjusting valves. The regulating valve may be a commercially available conventional valve, for example: the manual valve or the electromagnetic valve can be used for adjusting the on-off of the feeding hole, the first discharging hole and the second discharging hole, and the adjusting valve is not shown.
In one embodiment, the filtering mechanism is a groove structure, the bottom surface or/and the side surface of the groove structure is uniformly provided with a plurality of filtering holes, the side wall of the groove structure is cylindrical 11-shaped and coaxial with the first discharging hole 5, the edge of the opening of the groove structure is provided with a mounting plate, and in the assembled state, the mounting plate is positioned between the sealing plate 14 and the connecting flange. In addition, in order to secure sealability, a sealing gasket may be installed as needed.
In one embodiment, the mounting plate is provided with a mounting hole, the mounting hole corresponds to the connecting hole, the mounting hole on the mounting plate is connected with the connecting hole of the first discharging hole 5 connecting flange through a bolt, and the bolt installed at the connecting hole of the bolt and the sealing plate can be the same group of bolts. In addition, in order to secure sealability, a sealing gasket may be installed as needed.
In one embodiment, the frame 1 comprises four groups of support legs, the cross section of each support leg is U-shaped, the upper ends of the support legs are fixed on the outer wall of the cylinder 11, the lower ends of the support legs are connected with a support plate, and the support plate is horizontally arranged so as to support the aging tank.
In one embodiment, the stirring mechanism comprises a stirring shaft and a turbulent flow blade arranged on the stirring shaft, and the stirring shaft is connected with the driving mechanism 3.
In one embodiment, the middle part of the top cover 9 is provided with a supporting plate, two sides of the supporting plate are respectively provided with a sector opening, the edges of the sector openings are respectively provided with a movable cover 15 corresponding to the sector openings, the edges of the sector openings can be provided with a frame for supporting the movable cover, the movable cover is lapped on the frame, and the top surface of the movable cover 15 is provided with a handle so as to lift the movable cover or cover the movable cover.
In one embodiment, the driving mechanism 3 comprises a driving motor 7, the driving motor 7 is installed in the middle of the supporting plate, and the feeding hole 4 is located on one side of the driving motor 7, so that feeding is facilitated. Specifically, the driving motor is a conventional commercial motor, and the output end of the driving motor is connected with the stirring shaft.
The above embodiments may be combined with each other.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.