Catalyst preparation system

Abstract

The utility model discloses a catalyst preparation system, comprising a plurality of powder storage tanks, each powder storage tank is used for storing one of a plurality of solid raw materials; each liquid storage tank is used for storing one of a plurality of liquid raw materials; each pulping tank is used for receiving and mixing solid raw materials conveyed by the plurality of powder storage tanks and liquid raw materials conveyed by the plurality of liquid storage tanks, a first conveying pipeline is arranged between each powder storage tank and the corresponding pulping tank, and a second conveying pipeline is arranged between each liquid storage tank and the corresponding pulping tank. A plurality of powder storage tanks and a plurality of liquid storage tanks are communicated with a plurality of pulping tanks through a first conveying pipeline and a second conveying pipeline to form a set of complete preparation system for catalytic cracking catalysts and catalytic cracking catalysts, so that the problems of manual batching and low automation level in current preparation are solved; and the continuity and the preparation efficiency of the preparation process are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of catalyst preparation, and particularly relates to a preparation system for catalytic cracking catalyst and catalytic cracking catalyst. BACKGROUND

[0002] The industrial preparation process of the catalytic cracking catalyst and the catalytic cracking catalyst mainly involves the weighing and feeding of the following raw materials: one is solid raw materials, including the weighing and feeding of kaolin, aluminum stone and the like; and the other is liquid raw materials, including the weighing and feeding of molecular sieve slurry, aluminum sol, water and the like.

[0003] At present, the automation level of the metering and feeding of various raw materials is low, and manual weighing and manual feeding are mainly adopted. In this way, not only is the preparation efficiency low and the labor intensity high, but also the actual proportioning result is often inconsistent with the theoretical required proportioning result, especially when the catalyst preparation experiment is carried out, which seriously affects the accuracy of the experimental result. UTILITY MODEL CONTENTS

[0004] One of the technical problems to be solved by the utility model is that the preparation of the existing catalytic cracking catalyst and catalytic cracking catalyst is mainly manual proportioning, and the production efficiency and production continuity are low.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a preparation system for catalytic cracking catalyst and catalytic cracking catalyst, which comprises:

[0006] A plurality of powder storage tanks, each of which is used for storing one of a plurality of solid raw materials;

[0007] A plurality of liquid storage tanks, each of which is used for storing one of a plurality of liquid raw materials; and

[0008] A plurality of beating-up tanks;

[0009] Among them, each beating-up tank is used for receiving and mixing the solid raw materials delivered by the plurality of powder storage tanks and the liquid raw materials delivered by the plurality of liquid storage tanks, a first delivery pipeline is arranged between the powder storage tank and the beating-up tank, and a second delivery pipeline is arranged between the liquid storage tank and the beating-up tank.

[0010] In some embodiments, the first delivery pipeline comprises a plurality of solid branch pipelines, a plurality of solid feeding pipes and a solid total pipeline, the solid branch pipelines are arranged between the first end of the solid total pipeline and the plurality of powder storage tanks, and the solid feeding pipes are arranged between the second end of the solid total pipeline and the plurality of beating-up tanks.

[0011] In some embodiments, a screw feeder is further arranged between the powder storage tank and the solid branch pipeline.

[0012] In some embodiments, the end of the solid feed pipe located at the feed inlet of the pulping tank is a flexible hose, and the flexible hose is detachably connected to the feed inlet.

[0013] In some embodiments, a three-way valve is provided between the second end of the solids main pipeline and the plurality of solids feed pipes for selectively conveying the solid raw materials in the solids main pipeline to one of the plurality of pulping tanks.

[0014] In some embodiments, the second delivery pipeline includes multiple liquid branch pipelines, multiple liquid feed pipes, and a liquid main pipeline. The liquid branch pipelines are disposed between a first end of the liquid main pipeline and multiple liquid storage tanks, and the liquid feed pipes are disposed between a second end of the liquid main pipeline and multiple pulping tanks.

[0015] In some embodiments, each of the liquid branch lines is provided with at least one inlet valve.

[0016] In some embodiments, one end of the liquid feed pipe located at the inlet of the pulping tank is a flexible hose, and the flexible hose is detachably connected to the inlet.

[0017] In some embodiments, a three-way valve is provided between the second end of the liquid main pipeline and the plurality of liquid feed pipes for selectively conveying the liquid raw material in the liquid main pipeline to one of the plurality of pulping tanks.

[0018] In some embodiments, the pulping tank is configured for intermittent stirring.

[0019] The above technical solution connects multiple powder storage tanks, multiple liquid storage tanks, and multiple slurry tanks via first and second conveying pipelines, forming a complete preparation system for catalytic cracking catalysts and catalytic pyrolysis catalysts. This solves the problems of low production efficiency and continuity caused by the current practice of mostly manual batching, and improves the continuity and efficiency of the preparation process. Furthermore, the precise proportioning of this preparation system allows it to be used in catalyst preparation experiments, effectively ensuring the accuracy of the experimental results. Attached Figure Description

[0020] Figure 1 This is a process diagram of the preparation system for catalytic cracking catalyst and catalytic pyrolysis catalyst disclosed in this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Pulping tank; 2. Powder storage tank; 3. Screw feeder; 4. Three-way valve; 5. Discharge valve; 6. Liquid inlet valve; 7. Agitator; 8. Level gauge; 9. Hose; 10. Solid feed pipe; 11. Solid main pipeline; 12. Solid branch pipeline; 13. Liquid feed pipe; 14. Liquid main pipeline; 15. Liquid branch pipeline; 16. Weighing sensor; 17. Liquid storage tank. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0024] To address the shortcomings of existing technologies where the preparation of catalytic cracking and catalytic pyrolysis catalysts relies heavily on manual batching and suffers from low automation, this invention provides a system for preparing catalytic cracking and catalytic pyrolysis catalysts, comprising:

[0025] Multiple powder storage tanks 2, each powder storage tank 2 is used to store one of multiple solid raw materials;

[0026] Multiple liquid storage tanks 17, each liquid storage tank 17 being used to store one of multiple liquid feedstocks; and

[0027] Multiple pulping tanks 1;

[0028] Each pulping tank 1 is used to receive and mix solid raw materials conveyed by multiple powder storage tanks 2 and liquid raw materials conveyed by multiple liquid storage tanks 17. A first conveying pipeline is provided between the powder storage tanks 2 and the pulping tank 1, and a second conveying pipeline is provided between the liquid storage tanks 17 and the pulping tank 1.

[0029] Among them, such as Figure 1 As shown, powder storage tank 2 and liquid storage tank 17 are respectively located upstream of the preparation system, and slurry tank 1 is located downstream of the preparation system. The number of powder storage tanks 2 is determined according to the types and quantities of solid raw materials, and can be greater than or equal to the types and quantities of solid raw materials. When preparing catalytic cracking catalysts and catalytic pyrolysis catalysts, two tanks are preferred, storing alumina and kaolin respectively. The number of liquid storage tanks 17 is determined according to the types and quantities of liquid raw materials, and can be greater than or equal to the types and quantities of liquid raw materials. When preparing catalytic cracking catalysts and catalytic pyrolysis catalysts, six tanks are preferred, storing alumina sol, hydrochloric acid, molecular sieve slurry, phosphoric acid, magnesium oxide slurry, and water respectively. The number of slurry tanks 1 is determined according to actual production needs, and is at least two.

[0030] In addition, this system can be used in conjunction with a control system to improve the automation level of catalyst production. Specifically, the control system may include a computer-controlled weighing display controller (not shown in the figure), a weighing sensor 16 installed at the bottom of the slurry tank 1, a gravity-type automatic loading scale controlled by a control cabinet (not shown in the figure), and audible and visual alarm devices (not shown in the figure) installed on each slurry tank 1, powder storage tank 2, and liquid storage tank 17. Furthermore, all valves on the first and second conveying pipelines can be configured as automatic valves with feedback devices to regulate the flow rate of solid and liquid raw materials in the conveying pipelines.

[0031] In one specific implementation, the feeding of each solid and liquid raw material into the pulping tank 1 can be controlled by a computer, and various instruction data (e.g., preset values ​​of each solid and liquid raw material) can be sent to the field instruments in real time. After receiving the instruction data and the feeding start instruction, the field control cabinet feeds the material into the pulping tank 1 in sequence according to the preset values. When the system malfunctions, the audible and visual alarm device will sound an alarm. At the same time, various valves on the first and second conveying pipelines are equipped with feedback devices, which will sound an alarm when malfunctions occur.

[0032] Through the above technical solution, multiple powder storage tanks 2 and multiple liquid storage tanks 17 are connected to multiple slurry tanks 1 via first and second conveying pipelines, forming a complete preparation system for catalytic cracking catalysts and catalytic pyrolysis catalysts. This solves the problem of low production efficiency and continuity caused by the current practice of mostly manual batching, and improves the continuity and efficiency of the preparation process. Simultaneously, the slurry tanks 1 of this preparation system are equipped with level gauges 8, which, in conjunction with the control system, ensure precise raw material proportioning and can also be used for catalyst preparation experiments, effectively guaranteeing the accuracy of experimental results.

[0033] In some embodiments, the first conveying pipeline includes multiple solid branch pipelines 12, multiple solid feed pipes 10, and a solid main pipeline 11. The solid branch pipelines 12 are disposed between the first end of the solid main pipeline 11 and multiple powder storage tanks 2, and the solid feed pipes 10 are disposed between the second end of the solid main pipeline 11 and multiple pulping tanks 1.

[0034] like Figure 1 As shown, a solid branch pipe 12 is connected between the outlet of each powder storage tank 2 and the first end of the solid main pipeline 11, and a solid feed pipe 10 is connected between the inlet of each pulping tank 1 and the second end of the solid main pipeline 11.

[0035] In some embodiments, a screw feeder 3 is also provided between the powder storage tank 2 and the solid branch pipeline 12. For example... Figure 1As shown, the screw feeder 3 is used to stably convey solid raw materials to the solid branch pipeline 12. A discharge valve 5 is also installed below it to adjust the discharge flow rate of the screw feeder 3. In some other embodiments, the screw feeder 3 can also be replaced by a scraper conveyor or a bucket conveyor.

[0036] In some embodiments, one end of the solid feed pipe 10 located at the feed inlet of the pulping tank 1 is a flexible hose 9, which is detachably connected to the feed inlet.

[0037] like Figure 1 As shown, one end of the solid feed pipe 10 located at the inlet of the pulping tank 1 is configured as a detachable hose 9, which can quickly disconnect the solid feed pipe 10 from the pulping tank 1 and clean it in case of an abnormality at the inlet of the pulping tank 1 (for example, when it is blocked by solid raw materials).

[0038] In some embodiments, a three-way valve 4 is provided between the second end of the solid main pipeline 11 and the plurality of solid feed pipes 10 for selectively conveying the solid raw materials in the solid main pipeline 11 to one of the plurality of pulping tanks 1.

[0039] like Figure 1 As shown, when there are two pulping tanks 1, one inlet of the three-way valve 4 is connected to the solid main pipeline 11, and the two outlets are respectively connected to a solid feed pipe 10. In some other embodiments, when there are more than two pulping tanks 1, the number of three-way valves 4 also increases accordingly, and the number of three-way valves 4 = the number of pulping tanks 1 - 1.

[0040] In some embodiments, the second delivery pipeline includes multiple liquid branch pipelines 15, multiple liquid feed pipes 13, and a liquid main pipeline 14. The liquid branch pipelines 15 are disposed between the first end of the liquid main pipeline 14 and multiple liquid storage tanks 17, and the liquid feed pipes 13 are disposed between the second end of the liquid main pipeline 14 and multiple pulping tanks 1.

[0041] like Figure 1 As shown, each liquid storage tank 17 is connected to a liquid branch pipe 15 between its outlet and the first end of the main liquid pipeline 14, and each slurry tank 1 is connected to a liquid feed pipe 13 between its inlet and the second end of the main liquid pipeline 11.

[0042] In some embodiments, each liquid branch line 15 is provided with at least one inlet valve 6. For example... Figure 1 As shown, one or more inlet valves 6 can be provided on each liquid branch pipe 15, preferably two. Providing more than one inlet valve 6 can effectively prevent leakage and ensure the normal operation of the catalyst preparation system. The inlet valve 6 can be located at one end of the liquid branch pipe 15 near the main liquid pipe 14.

[0043] In some embodiments, one end of the liquid feed pipe 13 located at the liquid inlet of the pulping tank 1 is a flexible hose 9, and the flexible hose 9 is detachably connected to the liquid inlet.

[0044] like Figure 1 As shown, one end of the liquid feed pipe 13 located at the inlet of the pulping tank 1 is configured as a detachable hose 9, which can quickly disconnect the liquid feed pipe 13 from the pulping tank 1 and clean it in case of an abnormality at the inlet of the pulping tank 1 (for example, when it is blocked by liquid raw materials).

[0045] In some embodiments, a three-way valve 4 is provided between the second end of the liquid main 14 and a plurality of liquid feed pipes 13 for selectively conveying the liquid raw material in the liquid main 14 to one of a plurality of pulping tanks 1.

[0046] like Figure 1 As shown, when there are two pulping tanks 1, one inlet of the three-way valve 4 is connected to the main liquid pipeline 14, and the two outlets are respectively connected to a liquid feed pipe 13. In some other embodiments, when there are more than two pulping tanks 1, the number of three-way valves 4 also increases accordingly, and the number of three-way valves 4 = the number of pulping tanks 1 - 1.

[0047] In some embodiments, the mixing tank 1 is configured for intermittent stirring. For example... Figure 1 As shown, the pulping tank 1 is equipped with a stirring device 7. The stirring device 7 is an intermittent stirring device, and the start, stop and stirring time of the stirring are controlled in real time according to the material conditions.

[0048] The preparation method corresponding to this catalyst preparation system:

[0049] 1) Open one of the powder storage tanks 2, and transport one of the solid raw materials to one of the pulping tanks 1. The pulping tank 1 starts to stir. The transport of the remaining solid raw materials is repeated in the above-mentioned transport operation.

[0050] 2) Open one of the liquid storage tanks 17 and transfer one of the liquid raw materials to one of the pulping tanks 1. Repeat the above transfer operation for the remaining liquid raw materials.

[0051] 3) Repeat steps 1) and 2) for the remaining pulping tank 1;

[0052] The opening order of powder storage tank 2 and liquid storage tank 17 can be interchanged.

[0053] The preparation method also includes:

[0054] The pulping tank 1 sets the expected weight of the solid raw material to be received as the first weight and the actual weight of the solid raw material to be received as the second weight. The difference between the first weight and the second weight is compared. The weight comparison of the remaining solid raw materials is repeated.

[0055] The pulping tank 1 sets the expected weight of the liquid raw material to be received as the third weight and the actual weight of the liquid raw material to the fourth weight. The difference between the third weight and the fourth weight of the liquid raw material is compared. The weight comparison of the remaining liquid raw materials is repeated.

[0056] The control process of this catalyst preparation system includes:

[0057] 1) Check if the receiving pulping tank 1 is at zero and determine whether to perform the zeroing operation. Enter the pre-received material value for each material according to the formula.

[0058] 2) Open the three-way valve 4, the discharge valve 5, or the liquid inlet valve 6 to perform the material collection operation;

[0059] 3) During the process, the stirring device 7 of the pulping tank 1 will be started at any time, and the computer of the control system will monitor and observe it.

[0060] 4) When the set pre-received material value is reached, close the unloading valve 5 or the liquid inlet valve 6 and the three-way valve 4 to end the material collection;

[0061] 5) The control system checks whether the received weight exceeds the tolerance and saves the batching data waveform (trend chart);

[0062] 6) Repeat steps 2) to 4) to collect other raw materials until all raw materials have been collected.

[0063] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A catalyst preparation system, characterized in that, include: Multiple powder storage tanks (2), each of the powder storage tanks (2) is used to store one of a plurality of solid raw materials; Multiple liquid storage tanks (17), each of the liquid storage tanks (17) being used to store one of a plurality of liquid raw materials; and Multiple pulping tanks (1); Each of the pulping tanks (1) is used to receive and mix solid raw materials conveyed by multiple powder storage tanks (2) and liquid raw materials conveyed by multiple liquid storage tanks (17). A first conveying pipeline is provided between the powder storage tanks (2) and the pulping tanks (1), and a second conveying pipeline is provided between the liquid storage tanks (17) and the pulping tanks (1).

2. The preparation system according to claim 1, characterized in that, The first conveying pipeline includes multiple solid branch pipelines (12), multiple solid feed pipes (10), and a solid main pipeline (11). The solid branch pipelines (12) are located between the first end of the solid main pipeline (11) and multiple powder storage tanks (2), and the solid feed pipes (10) are located between the second end of the solid main pipeline (11) and multiple pulping tanks (1).

3. The preparation system according to claim 2, characterized in that, A screw feeder (3) is also provided between the powder storage tank (2) and the solid branch pipeline (12).

4. The preparation system according to claim 2, characterized in that, The solid feed pipe (10) is located at the feed inlet of the pulping tank (1) with one end being a flexible hose (9), and the flexible hose (9) is detachably connected to the feed inlet.

5. The preparation system according to claim 2, characterized in that, A three-way valve (4) is provided between the second end of the solid main pipeline (11) and the plurality of solid feed pipes (10) for selectively conveying the solid raw materials in the solid main pipeline (11) to one of the plurality of pulping tanks (1).

6. The preparation system according to claim 1, characterized in that, The second conveying pipeline includes multiple liquid branch pipelines (15), multiple liquid feed pipes (13), and a liquid main pipeline (14). The liquid branch pipelines (15) are located between the first end of the liquid main pipeline (14) and multiple liquid storage tanks (17), and the liquid feed pipes (13) are located between the second end of the liquid main pipeline (14) and multiple pulping tanks (1).

7. The preparation system according to claim 6, characterized in that, Each of the liquid branch lines (15) is provided with at least one inlet valve (6).

8. The preparation system according to claim 6, characterized in that, The liquid feed pipe (13) is located at the liquid inlet of the pulping tank (1) at one end, which is a flexible hose (9), and the flexible hose (9) is detachably connected to the liquid inlet.

9. The preparation system according to claim 6, characterized in that, A three-way valve (4) is provided between the second end of the liquid main pipeline (14) and the plurality of liquid feed pipes (13) for selectively transporting the liquid raw material in the liquid main pipeline (14) to one of the plurality of pulping tanks (1).

10. The preparation system according to claim 1, characterized in that, The pulping tank (1) is configured for intermittent stirring.

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