Solid catalyst vacuum impregnation equipment

Abstract

The utility model discloses vacuum impregnation equipment for a solid catalyst, and belongs to the field of catalyst impregnation. The equipment comprises a vacuum impregnation unit, and the vacuum impregnation unit comprises an oscillation box body, a vacuum unit, an oscillation motor, a rotating unit and a plurality of impregnation tanks; the vacuum unit and the oscillation motor are connected with the oscillation box body, the rotating unit is arranged in the oscillation box body, and the plurality of dipping tanks are arranged in the oscillation box body and are symmetrically arranged on the rotating unit. The technical problems that an existing catalyst impregnation device is difficult to achieve simultaneous impregnation of a plurality of different types of carriers and impregnation liquid, the impregnation time is long, the efficiency is low, and a traditional stirring mode is difficult to clean and easy to smash carrier particles can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to catalyst impregnation field relates to a solid catalyst vacuum impregnation equipment. BACKGROUND

[0002] The catalyst is mainly composed of carrier, active component and adjuvant three parts. The active component is the core part of the catalyst, which directly participates in the chemical reaction and provides catalytic activity. The activity and selectivity of the catalyst depend largely on the dispersion degree of the active component on the surface and in the pores of the carrier. The vacuum impregnation method can extract the air in the carrier interstice, so that the active component is better dispersed to the surface and internal pores of the carrier, thereby preparing a catalyst product with high activity and high selectivity.

[0003] Most of the existing solid catalyst vacuum impregnation equipment realizes the dispersion of the active component by an external agitator. The container and the agitator cannot be disassembled, which makes cleaning difficult. Long-term use can introduce impurities, affecting the catalytic activity of the catalyst. At the same time, due to the large mechanical stirring power, the agitator is easy to stir the carrier particles during rotation, affecting the strength of the catalyst. In addition, the existing vacuum impregnation equipment cannot realize the simultaneous impregnation of multiple different types of carriers and impregnating liquid, and the impregnation efficiency is low, resulting in a long catalyst preparation period. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a solid catalyst vacuum impregnation equipment, which can solve the technical problems of the existing catalyst impregnation equipment that is difficult to realize the simultaneous impregnation of multiple different types of carriers and impregnating liquid, low impregnation efficiency, and the traditional stirring method is difficult to clean and easy to stir the carrier particles.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a solid catalyst vacuum impregnation equipment, including vacuum impregnation unit, the vacuum impregnation unit includes oscillation box, vacuum unit, oscillation motor, rotation unit, a plurality of impregnation tank, the vacuum unit and oscillation motor are connected with oscillation box, the rotation unit is arranged in the inside of oscillation box, a plurality of impregnation tank is arranged in the inside of oscillation box and is symmetrically arranged on rotation unit.

[0007] In an embodiment, the rotation unit includes a rotating motor and a rotating base. The rotating base is located inside the oscillation box. A rotating base center hole is formed through the center of the rotating base. A center hole is formed in the center of the bottom surface of the oscillation box. The rotor shaft of the rotating motor passes through the center hole of the bottom surface of the oscillation box and the rotating base center hole. The rotor shaft of the rotating motor is connected to the rotating base through a gear.

[0008] In an embodiment, the rotating base is a solid cylinder, and a plurality of holes are symmetrically and centrally provided on the rotating base for placing the impregnation tank.

[0009] In an embodiment, the oscillation motor is connected with the oscillation box through a transmission system, the transmission system comprises a driving wheel, a driven wheel, a connecting rod and a belt provided between the driving wheel and the driven wheel, the output shaft of the oscillation motor is connected with the driving wheel, an eccentric shaft is provided on the driven wheel, one end of the connecting rod is connected with the eccentric shaft, and the other end of the connecting rod is connected with the oscillation box.

[0010] In an embodiment, the vacuum unit comprises a vacuum pump, a pressure transmitter, a pressure regulating valve, a pressure balance valve, a vacuum pipeline and a branch; the vacuum pipeline is connected with the oscillation box and the vacuum pump, the pressure transmitter and the pressure regulating valve are sequentially provided on the vacuum pipeline; the branch is provided on the vacuum pipeline between the pressure transmitter and the pressure regulating valve, and the pressure balance valve is provided on the branch.

[0011] In an embodiment, the solid catalyst vacuum impregnation equipment further comprises a plurality of impregnation liquid preparation units and a plurality of metering feeding units corresponding to the impregnation liquid preparation units.

[0012] In an embodiment, the impregnation liquid preparation unit comprises a solvent storage tank, a plurality of impregnation liquid preparation tanks, a liquid preparation pipeline and a metering pump; the solvent storage tank and the plurality of impregnation liquid preparation tanks are connected through the liquid preparation pipeline, and the metering pump is provided on the liquid preparation pipeline.

[0013] In an embodiment, the metering feeding unit comprises a conveying pipe connected between the vacuum impregnation unit and the impregnation liquid preparation unit, the conveying pipe is sequentially provided with an impregnation liquid preparation tank bottom valve, a mass flowmeter and an electromagnetic valve, an outlet position of the conveying pipe is connected with a telescopic spray head, a plurality of the telescopic spray heads are inserted into the interior of the oscillation box through an oscillation box top cover of the oscillation box, and a sealing ring is provided at the junction of the telescopic spray head and the oscillation box top cover.

[0014] In an embodiment, a temperature control unit is further included, the temperature control unit comprises an electric heater and a temperature sensor provided on the oscillation box.

[0015] In an embodiment, the solid catalyst vacuum impregnation equipment further comprises an equipment frame, the equipment frame comprises two side supports, a bottom plate between the two side supports and a plurality of stand columns provided on the bottom plate, a plurality of the stand columns are provided around the oscillation box, and the oscillation box is connected with the stand columns through springs.

[0016] Compared with the prior art, the solid catalyst vacuum impregnation equipment has the following beneficial effects:

[0017] The utility model provides a kind of solid catalyst vacuum impregnation equipment, vacuum impregnation unit adopts oscillation method to disperse carrier, oscillation box and oscillation motor are used, the vibration generated by oscillation motor can promote impregnation liquid and catalyst carrier particles to carry out more uniform mixing inside oscillation box, avoid the cleaning difficulty and impurity introduction problem brought by traditional stirrer, and oscillation can more gently promote mixing, avoid the physical damage of mechanical stirring to carrier, maintain the integrity of catalyst carrier. By being provided with multiple impregnation tanks on rotating unit, the demand of multiple impregnation solutions and different kinds of carriers can be simultaneously impregnated, greatly improve the impregnation efficiency of catalyst, also make equipment can more flexibly adapt to the preparation demand of different catalyst, shorten the preparation period of catalyst.

[0018] Further, the impregnation tank is arranged in the hole of the rotating base plate, and the impregnation tank in the vacuum impregnation unit can be detached, so that the operation process of detaching the impregnation tank from the rotating base plate is simple, and the problem that the existing mechanical stirring and impregnation container are difficult to clean is solved.

[0019] Further, the telescopic spray head uniformly sprays the impregnation liquid onto the carrier particles, maintains the oscillation of the impregnation container at the same time of spraying the impregnation liquid, realizes the dynamic contact of the carrier and the impregnation solution under negative pressure, can improve the dispersion degree of the active component of the catalyst, and further improves the catalytic activity of the catalyst product. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A solid catalyst vacuum impregnation equipment structure schematic view provided by an embodiment of the utility model is shown in the figure.

[0021] Figure 2 A top view of the rotating base plate of the utility model is shown in the figure.

[0022] Wherein: 1-solvent storage tank; 2-impregnation liquid preparation tank; 3-metering pump; 4-1-first impregnation tank; 4-2-second impregnation tank; 4-3-third impregnation tank; 4-4 fourth impregnation tank; 5-telescopic spray head; 5-1-first telescopic spray head; 5-2-second telescopic spray head; 6-oscillation box; 7-oscillation box top cover; 8-vacuum pump; 9-solenoid valve; 10-pressure transmitter; 11-pressure regulating valve; 12-electric heater; 13-temperature sensor; 14-impregnation liquid preparation tank bottom valve; 15-mass flow meter; 16-oscillation motor; 17-rotary motor; 18-rotating base plate; 19-pressure balance valve. DETAILED DESCRIPTION

[0023] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0025] The present application will be described in further detail below in conjunction with the drawings:

[0026] Referring to Figure 1 , 2 The present embodiment provides a solid catalyst vacuum impregnation equipment, which comprises a vacuum impregnation unit, the unit comprising an oscillation box 6, a vacuum unit, an oscillation motor 16, a rotating unit and a plurality of impregnation tanks. The oscillation box 6 is used to accommodate the impregnation tank and oscillate. The vacuum unit is connected with the oscillation box 6, and is used to provide the required vacuum environment during the impregnation process. The oscillation motor 16 is arranged on one side of the oscillation box 6, and drives the oscillation box 6 to oscillate through a transmission system, which helps the uniform distribution of the impregnation liquid in the carrier. The rotating unit is arranged inside the oscillation box 6, and a plurality of impregnation tanks are symmetrically placed on the rotating unit, which facilitates the impregnation treatment of different types of carriers, improves the impregnation efficiency and uniformity, and facilitates the treatment of multiple carriers. The mechanical vibration generated by the oscillation can cause the material to produce a small vibration displacement, promote the impact and mixing effect between the particles, and at the same time avoid the shear force and impact force that may be generated during the stirring process, thereby being beneficial to the physical integrity of the catalyst particles.

[0027] The rotating unit is composed of a rotating motor 17 and a rotating base 18. The rotating base 18 is a solid cylinder, and a plurality of holes are symmetrically and centrally provided on the rotating base 18 for placing the impregnation tank. A rotating base central hole is centrally provided on the rotating base 18. The rotating base 18 is arranged in the interior of the oscillation box 6, and a central hole is centrally provided on the bottom surface of the oscillation box 6. The rotating base central hole of the rotating base 18 corresponds to the central hole on the bottom surface of the oscillation box 6. The rotor shaft of the rotating motor 17 penetrates the central hole of the oscillation box and the rotating base central hole, and is connected with the rotating base 18 through a gear to realize the rotating function.

[0028] The oscillation motor 16 is connected with the oscillation box 6 through a transmission system (including a driving wheel, a driven wheel, a connecting rod and a belt). The transmission system realizes the oscillation effect by using an eccentric shaft and the connecting rod. The output shaft of the oscillation motor 16 is connected with the driving wheel, and the eccentric shaft is arranged on the driven wheel. One end of the connecting rod is connected with the eccentric shaft, and the other end of the connecting rod is connected with the oscillation box 6, so as to realize the oscillation of the oscillation box 6, which is helpful to the uniform distribution of the impregnating liquid and the dispersion of the carrier.

[0029] The vacuum unit includes a vacuum pump 8, a pressure transmitter 10, a pressure regulating valve 11, a pressure balance valve 19, a vacuum pipeline and a branch. The vacuum pipeline connects the oscillation box 6 and the vacuum pump 8. The pressure transmitter 10 and the pressure regulating valve 11 are sequentially arranged on the vacuum pipeline for monitoring and adjusting the vacuum degree. The branch is arranged on the vacuum pipeline between the pressure transmitter 10 and the pressure regulating valve 11, and the pressure balance valve 19 is arranged on the branch for balancing the pressure when needed.

[0030] The solid catalyst vacuum impregnation equipment further includes an impregnating liquid preparation unit and a metering feeding unit. The equipment includes a plurality of impregnating liquid preparation units and corresponding metering feeding units. The impregnating liquid preparation unit is composed of a solvent storage tank 1, a plurality of impregnating liquid preparation tanks 2, a liquid preparation pipeline and a metering pump 3, and is used for preparing the impregnating liquid. The metering feeding unit connects the impregnating liquid preparation unit and the vacuum impregnation unit through a conveying pipe. The impregnating liquid preparation tank bottom valve 14, the mass flowmeter 15 and the electromagnetic valve 9 are sequentially arranged on the conveying pipe. The outlet of the conveying pipe is connected with the telescopic spray head 5, which is used for uniformly spraying the impregnating liquid on the carrier, so as to realize the accurate preparation and metering of the impregnating liquid and improve the controllability and accuracy of the impregnation process.

[0031] The solid catalyst vacuum impregnation equipment also includes a temperature control unit consisting of an electric heater 12 and a temperature sensor 13. The temperature control unit is located within the oscillating chamber 6 and provides the required temperature environment during the impregnation process, meeting the temperature requirements of different impregnation processes. The solid catalyst vacuum impregnation equipment also includes an equipment frame, which consists of side supports, a base plate, and columns. The columns surround the oscillating chamber 6 and are connected to it via springs, allowing the oscillating chamber 6 to vibrate to a certain extent. In the transmission system, a driven wheel is positioned above the columns. An eccentric shaft on the driven wheel connects to one end of a connecting rod, and the other end of the connecting rod connects to the oscillating chamber 6.

[0032] In the specific implementation process, the number of the above-mentioned columns is preferably 3, the corresponding number of springs is 2, and the number of holes symmetrically opened on the top surface of the rotating base 18 is preferably 2N, such as 2, 4, or 6.

[0033] In another specific implementation process, the multifunctional solid catalyst vacuum impregnation equipment also includes a PLC program control system. Users only need to set parameters such as temperature, pressure, and impregnation liquid volume to achieve fully automated operation.

[0034] like Figure 1 As shown, in another embodiment, a multifunctional solid catalyst vacuum impregnation device is provided, comprising an impregnation solution preparation unit, a metering and feeding unit, a vacuum impregnation unit, a device frame, and a temperature control unit.

[0035] The equipment frame includes two side supports, a base plate between the two side supports, and three columns mounted on the base plate. The impregnation solution preparation unit includes a solvent storage tank 1, two impregnation solution preparation tanks 2, two dispensing pipes, and a metering pump 3. The metering and feeding unit includes two delivery pipes, two bottom valves 14 for the two impregnation solution preparation tanks, two mass flow meters 15, two solenoid valves 9, and two telescopic nozzles 5, namely the first telescopic nozzle 5-1 and the second telescopic nozzle 5-2. The vacuum unit includes a vacuum pump 8, a pressure transmitter 10, a pressure regulating valve 11, a pressure balancing valve 19, vacuum pipes, and branch lines. The temperature control unit includes an electric heater 12 and a temperature sensor 13. The vacuum impregnation unit includes an oscillating chamber 6, a vacuum unit, an oscillating motor 16, a rotating unit, a first impregnation tank 4-1, a second impregnation tank 4-2, a third impregnation tank 4-3, and a fourth impregnation tank 4-4. The rotating unit includes a rotating motor 17 and a rotating chassis 18.

[0036] The device frame is placed on the ground, and the device frame comprises two side supports, a bottom plate between the two side supports, and three columns arranged on the bottom plate. Two impregnating liquid preparation tanks 2 with stirring are fixed on the upper part of the two side supports of the device frame respectively. The top of the impregnating liquid preparation tank 2 is provided with a feeding port, and active component precursors and solvents can be added. The bottom of the impregnating liquid preparation tank 2 is provided with an inlet of a conveying pipe, and the outlet of the conveying pipe is connected with a telescopic spray head 5. The conveying pipe is used to connect a vacuum impregnation unit and an impregnating liquid preparation unit. The impregnating liquid preparation tank bottom valve 14, the mass flow meter 15 and the electromagnetic valve 9 are connected on the conveying pipe in sequence. The electromagnetic valve 9 is connected with the telescopic spray head 5 through a hose behind the electromagnetic valve 9, and the telescopic spray head 5 extends into the inside of the oscillation box body 6. Specifically, the impregnating liquid preparation tank bottom valve 14 and the mass flow meter 15 are arranged on the conveying pipe in sequence at a position close to the impregnating liquid preparation unit, and the electromagnetic valve 9 is arranged at a position close to the vacuum impregnation unit. The first telescopic spray head 5-1 and the second telescopic spray head 5-2 extend into the inside of the oscillation box body 6 through the oscillation box body top cover 7 of the oscillation box body 6, and are located above the first impregnating tank 4-1 and the third impregnating tank 4-3 respectively. The junction of the first telescopic spray head 5-1 and the second telescopic spray head 5-2 with the oscillation box body top cover 7 is provided with a sealing ring for sealing treatment.

[0037] As shown in Figure 1 The columns are fixed at the bottom of the device frame, and the columns surround the oscillation box body 6. The oscillation box body 6 is connected with the columns through springs. In the embodiment, the number of columns is three, and the number of springs is two. The connection between the oscillation box body 6 and the columns adopts springs. The oscillation box body 6 is connected with the oscillation motor 16 through a transmission system, so that the whole oscillation box body 6 can oscillate, driving the first impregnating tank 4-1, the second impregnating tank 4-2, the third impregnating tank 4-3 and the fourth impregnating tank 4-4 inside to oscillate, thereby playing a role of dispersing the carrier.

[0038] The oscillation motor 16 is connected with the oscillation box body 6 through a transmission system. The transmission system comprises a driving wheel, a driven wheel, a connecting rod and a belt arranged between the driving wheel and the driven wheel. The output shaft in the oscillation motor 16 is connected with the driving wheel. The driven wheel is provided with an eccentric shaft. One end of the connecting rod is connected with the eccentric shaft, and the other end of the connecting rod is connected with the oscillation box body 6.

[0039] The oscillation motor 16 is installed on one side of the oscillation box body 6, and the rotary motor 17 is installed at the bottom of the oscillation box body 6, as shown in Figure 2As shown, the first, second, third and fourth impregnation tanks 4-1, 4-2, 4-3 and 4-4 are fixed on the inner rotating base 18. Specifically, the rotating base 18 is arranged inside the oscillation box 6, a rotating base center hole is formed at the center of the rotating base 18, a plurality of holes for placing the impregnation tanks are formed around the center, a center hole is formed at the center of the bottom surface of the oscillation box 6 corresponding to the position of the rotating base center hole, and the rotor shaft of the rotating motor 17 passes through the oscillation box center hole and the rotating base center hole in sequence. The rotating motor 17 drives the rotating base 18 to rotate. In this embodiment, four symmetrical holes are formed, and the first, second, third and fourth impregnation tanks 4-1, 4-2, 4-3 and 4-4 are respectively placed in the holes.

[0040] The temperature control unit, temperature sensor 13 and electric heater 12 are arranged on one side of the oscillation box 6, and can automatically control the temperature required for impregnation and drying.

[0041] The oscillation box 6 and the vacuum pump 8 are connected through a vacuum pipeline, and the pressure transmitter 10 and the pressure regulating valve 11 are arranged on the vacuum pipeline, which can automatically control the vacuum impregnation pressure required. A branch is formed on the vacuum pipeline between the pressure transmitter 10 and the pressure regulating valve 11, and the pressure balance valve 19 is arranged on the branch.

[0042] The solvent storage tank 1 and the two impregnation liquid preparation tanks 2 are connected through a liquid preparation pipeline, and the metering pump 3 is arranged on the liquid preparation pipeline.

[0043] The impregnation liquid preparation tank 2 is provided with a stirrer and a heater inside.

[0044] The impregnation liquid preparation tank in the above device can be used alone (for impregnating the same impregnation liquid for multiple carriers) or in combination (for step-by-step impregnation of different impregnation liquids for the same or different carriers).

[0045] In an implementation process, the use process of the multifunctional solid catalyst vacuum impregnation equipment is as follows:

[0046] The solvent is added to the solvent storage tank 1, the active components and additives are added to the impregnation liquid preparation tank 2 according to the required mass, the metering pump 3 is started to pour the solvent into the impregnation liquid preparation tank 2 according to the required mass, the impregnation liquid preparation tank 2 is provided with a stirrer, the stirrer is turned on to stir and mix the impregnation liquid, and the heater inside the impregnation liquid preparation tank 2 facilitates the dissolution of the active components and accelerates the impregnation liquid preparation process.

[0047] In this embodiment, four different carriers are respectively added into four impregnation tanks, two impregnation solutions are prepared in two impregnation solution preparation tanks 2, two delivery pipes are respectively connected to the two impregnation solution preparation tanks 2, the outlets of the two delivery pipes are respectively connected to the first telescopic nozzle 5-1 and the second telescopic nozzle 5-2, the first telescopic nozzle 5-1 and the second telescopic nozzle 5-2 are respectively located above the first impregnation tank 4-1 and the third impregnation tank 4-3, the oscillation box top cover 7 is covered, the vacuum pump 8 is started, the electromagnetic valve 9 is opened, when the pressure transmitter 10 reaches the preset value, the pressure regulating valve 11, the electromagnetic valve 9 and the vacuum pump 8 are closed in a chain. If a specific temperature is required during impregnation, the electric heater 12 on the oscillation box 6 can be started, the temperature is preset, and the temperature is dynamically controlled by the temperature sensor 13 to ensure the impregnation temperature.

[0048] The impregnation solution preparation tank bottom valve 14 of the impregnation solution preparation tank 2 is opened, the impregnation solution passes through the mass flowmeter 15 before the electromagnetic valve 9, and fills the delivery pipe. At this time, the mass flowmeter 15 is reset to zero, the mass of each spraying is preset, the first telescopic nozzle 5-1 is extended into the first catalyst impregnation tank 4-1, and the second telescopic nozzle 5-2 is extended into the third catalyst impregnation tank 4-3. The oscillation motor 16 is started to make the oscillation box 6 oscillate. The electromagnetic valve 9 is opened, the prepared impregnation solution is accurately metered through the mass flowmeter 15, and then uniformly sprayed on the carriers in the first catalyst impregnation tank 4-1 and the third catalyst impregnation tank 4-3 through the first telescopic nozzle 5-1 and the second telescopic nozzle 5-2. When the preset mass is reached, the electromagnetic valve 9 is closed in a chain. When the impregnation solution spraying of the carriers in the first impregnation tank 4-1 and the third impregnation tank 4-3 is completed, the telescopic nozzle 5 is lifted up, the rotary motor 17 is started to drive the rotary base plate 18 to rotate, so that the first catalyst impregnation tank 4-1 and the third catalyst impregnation tank 4-3 are respectively replaced with the second catalyst impregnation tank 4-2 and the fourth catalyst impregnation tank 4-4. After the replacement is completed, the first telescopic nozzle 5-1 and the second telescopic nozzle 5-2 are re-extended into the second catalyst impregnation tank 4-2 and the fourth catalyst impregnation tank 4-4, respectively. The electromagnetic valve 9 is opened again, the prepared impregnation solution is accurately metered through the mass flowmeter 15, and then uniformly sprayed on the carriers in the second catalyst impregnation tank 4-2 and the fourth catalyst impregnation tank 4-4 through the first telescopic nozzle 5-1 and the second telescopic nozzle 5-2, respectively.

[0049] When the impregnation solution spraying is completed, the first telescopic nozzle 5-1 and the second telescopic nozzle 5-2 are retracted upwards, and the oscillation is maintained. After the preset impregnation time is reached, the temperature of the oscillation box 6 is raised to the drying temperature, after a certain time, the electric heater 12 is turned off to cool down, the oscillation motor 16 is stopped, the balance valve 19 is opened, the pressure inside and outside the oscillation box 6 is balanced, the oscillation box top cover 7 is opened, the detachable catalyst impregnation tank is taken out, the catalyst is unloaded, the impregnation tank is cleaned and subsequent operations are performed.

[0050] The whole process of impregnating the catalyst only needs to add the solvent, the carrier and the active component in advance, and sets the parameters of pressure, temperature, time and mass, so that the automatic operation is realized, and the process is simple and efficient.

[0051] The above merely illustrates the technical thought of the present application, and cannot limit the protection scope of the present application, and any modification made on the basis of the technical scheme according to the technical thought of the present application falls within the protection scope of the present application.

Claims

1. A solid catalyst vacuum impregnation apparatus characterized by, The vacuum impregnation unit comprises an oscillation box (6), a vacuum unit, an oscillation motor (16), a rotating unit and a plurality of impregnation tanks.

2. The solid catalyst vacuum impregnation apparatus according to claim 1, wherein, The rotating unit comprises a rotating motor (17) and a rotating base (18), the rotating base (18) is located in the interior of the oscillation box (6), a rotating base center hole is formed through the center of the rotating base (18), a center hole is formed through the center of the bottom surface of the oscillation box (6), the rotor shaft of the rotating motor (17) passes through the center hole of the bottom surface of the oscillation box (6) and the rotating base center hole, and the rotor shaft of the rotating motor (17) is connected with the rotating base (18) through a gear.

3. The solid catalyst vacuum impregnation apparatus according to claim 2, wherein, The rotating base (18) is a solid cylinder, a plurality of holes are formed through the center of the rotating base (18) in a symmetrical manner, and the holes are used for placing the impregnation tanks.

4. The solid catalyst vacuum impregnation apparatus according to claim 1, wherein The oscillation motor (16) is connected with the oscillation box (6) through a transmission system, the transmission system comprises a driving wheel, a driven wheel, a connecting rod and a belt arranged between the driving wheel and the driven wheel, the output shaft in the oscillation motor (16) is connected with the driving wheel, an eccentric shaft is arranged on the driven wheel, one end of the connecting rod is connected with the eccentric shaft, and the other end of the connecting rod is connected with the oscillation box (6).

5. The solid catalyst vacuum impregnation apparatus according to claim 1, wherein, The vacuum unit comprises a vacuum pump (8), a pressure transmitter (10), a pressure regulating valve (11), a pressure balance valve (19), a vacuum pipeline and a branch; the vacuum pipeline connects the oscillation box (6) and the vacuum pump (8), the pressure transmitter (10) and the pressure regulating valve (11) are sequentially arranged on the vacuum pipeline; the branch is formed on the vacuum pipeline between the pressure transmitter (10) and the pressure regulating valve (11), and the pressure balance valve (19) is arranged on the branch.

6. The solid catalyst vacuum impregnation apparatus according to claim 1, wherein The solid catalyst vacuum impregnation equipment further comprises a plurality of impregnation liquid preparation units and a plurality of metering feeding units corresponding to the impregnation liquid preparation units.

7. The solid catalyst vacuum impregnation apparatus according to claim 6, wherein The impregnation liquid preparation unit comprises a solvent storage tank (1), a plurality of impregnation liquid preparation tanks (2), a liquid preparation pipeline and a metering pump (3); the solvent storage tank (1) and the plurality of impregnation liquid preparation tanks (2) are connected through the liquid preparation pipeline, and the metering pump (3) is arranged on the liquid preparation pipeline.

8. The solid catalyst vacuum impregnation apparatus according to claim 6, wherein, The metering feeding unit comprises a conveying pipe connected between the vacuum impregnation unit and the impregnation liquid preparation unit, the conveying pipe is sequentially provided with an impregnation liquid preparation tank bottom valve (14), a mass flowmeter (15) and an electromagnetic valve (9), the outlet position of the conveying pipe is connected with a telescopic spray head (5), a plurality of telescopic spray heads (5) extend into the interior of the oscillation box (6) through an oscillation box top cover (7) of the oscillation box (6), and a sealing ring is arranged at the joint between the telescopic spray head (5) and the oscillation box top cover (7).

9. The solid catalyst vacuum impregnation apparatus according to claim 1, wherein, The temperature control unit comprises an electric heater (12) and a temperature sensor (13) arranged on the oscillation box (6).

10. The solid catalyst vacuum impregnation apparatus according to claim 1, wherein, The solid catalyst vacuum impregnation device further comprises a device frame, the device frame comprising two side supports, a bottom plate between the two side supports, and a plurality of columns arranged on the bottom plate, the plurality of columns being arranged around the oscillation box (6), and the oscillation box (6) being connected to the columns through springs.

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