CN219043327U

CN219043327U - Fixed bed catalyst preparation device for recycling crushed aggregates

Info

Publication number: CN219043327U
Application number: CN202222551275.7U
Authority: CN
Inventors: 刘思嘉; 刘成; 孔童童; 陆健; 张华东; 张少钢
Original assignee: China Petroleum and Chemical Corp; Sinopec Catalyst Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Catalyst Co
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-05-19
Anticipated expiration: 2032-09-26

Abstract

The utility model relates to the technical field of fixed bed catalyst preparation, and discloses a fixed bed catalyst preparation device for recycling crushed aggregates. In the scheme, the crushed aggregates recycling area is arranged, the crushed aggregates of the fixed bed catalyst are recycled and used as production raw materials to prepare a new catalyst finished product, meanwhile, the preparation conditions of the catalyst are dynamically regulated and controlled through the control system, so that the production cost is reduced, and the generation of waste materials is reduced.

Description

Fixed bed catalyst preparation device for recycling crushed aggregates

Technical Field

The utility model relates to the technical field of fixed bed catalyst preparation, in particular to a fixed bed catalyst preparation device for recycling crushed aggregates.

Background

In industrial production, most of the catalysts belong to fixed bed catalysts. In the preparation process of the fixed bed catalyst, the fixed bed catalyst basically needs to undergo the procedures of forming, drying, roasting, packaging and the like. Because the fixed bed catalyst has a certain shape, the catalyst can collide in the processes and the transportation process, and more catalyst crushed aggregates are often generated. Because of the relatively complex chemical composition of the catalyst, these catalyst particles, if discarded, must be referred to as hazardous solid waste disposal, which is costly. In addition, the catalyst is relatively high in preparation cost, and if the catalyst particles are abandoned, the catalyst particles also bring about relatively large economic loss. Thus, the need for recovery of fixed bed catalyst fines is urgent, both from a economic loss reduction perspective and from a waste generation reduction perspective.

Disclosure of Invention

The utility model aims to solve the problem that crushed aggregates of a fixed bed catalyst cannot be effectively recycled in the prior art, and provides a preparation device and a preparation method of the fixed bed catalyst, wherein the preparation device of the fixed bed catalyst for recycling crushed aggregates has the advantages of effectively recycling the crushed aggregates of the catalyst and dynamically regulating and controlling the preparation condition of the catalyst, so that the production cost of the catalyst is reduced, and the generation of catalyst waste is reduced.

In order to achieve the above object, the present utility model provides a fixed bed catalyst preparation apparatus for crushed aggregates recycling, wherein the fixed bed catalyst preparation apparatus for crushed aggregates recycling comprises a catalyst preparation zone, a crushed aggregate recycling zone provided at an inlet of the catalyst preparation zone, and a control system provided at an outlet of the catalyst preparation zone, the crushed aggregate recycling zone comprising a vibrating screen, a crusher and a pulverizer respectively connected to the outlet of the vibrating screen, the outlet of the crusher being connected to the inlet of the pulverizer, the crusher being configured to crush coarse crushed aggregates sieved out of the vibrating screen into fine aggregates, the pulverizer being configured to receive the fine crushed aggregates sieved out of the vibrating screen and the fine aggregates obtained from the crusher and further convert them into fine aggregates, the control system being configured to recognize the appearance of a semi-finished catalyst obtained from the catalyst preparation zone and to dynamically regulate the preparation conditions of the catalyst preparation zone.

In some embodiments, the outlet of the vibrating screen is provided with a coarse particle outlet and a fine particle outlet.

In some embodiments, the crusher is connected to the coarse particle outlet and the pulverizer is connected to the fine particle outlet.

In some embodiments, the catalyst preparation zone comprises a silo, a discharge valve disposed at an outlet of the silo, a kneader disposed downstream of the silo, and a former coupled to the kneader outlet.

In some embodiments, the bins include a fines bin, a fresh raw material bin, an auxiliary agent bin, and a liquid bin.

In some embodiments, the fine powder bin, the fresh raw material bin, the auxiliary agent bin, and the liquid bin are disposed in parallel.

In some embodiments, the fine powder bin, the fresh raw material bin, the auxiliary agent bin and the liquid bin are all provided with a discharging pipeline at the discharging valve, a first end of the discharging pipeline is connected with the discharging valve, and a second end of the discharging pipeline is connected with the inlet of the kneader.

In some embodiments, the control system is disposed at the outlet of the forming machine.

In some embodiments, the control system is respectively connected with the discharging valves of the fine powder bin, the fresh raw material bin, the auxiliary agent bin and the liquid bin to respectively control the discharging amount of each bin.

In some embodiments, the fixed bed catalyst preparation apparatus is belt conveyed for material transport.

Through above-mentioned technical scheme, through setting up crushed aggregates recovery district, retrieve fixed bed catalyst crushed aggregates and prepare as the production raw materials and obtain new catalyst finished product, carry out dynamic regulation and control to the preparation condition of catalyst through control system simultaneously, reduced manufacturing cost, reduced the production of waste material.

Drawings

The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

fig. 1 is a schematic view showing the overall structure of a fixed bed catalyst preparation apparatus for recycling catalyst crushed aggregates according to an embodiment of the present utility model.

Description of the reference numerals

100. Crushed aggregates recovery zone 200 catalyst preparation zone

300. Control system 110 vibrating screen

111. Coarse particle outlet 112 fine particle outlet

120. Crusher 130 crusher

210. Feed bin 211 fine powder feed bin

212. 213 auxiliary agent feed bin of normal raw material feed bin

214. Liquid bin 220 kneader

230. Forming machine

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In order to solve the problem that crushed aggregates of the fixed bed catalyst in the prior art cannot be effectively recycled, the utility model provides a preparation device of the fixed bed catalyst for recycling crushed aggregates. As shown in fig. 1, in one embodiment, the fixed bed catalyst preparation apparatus for crushed aggregates recycling includes a catalyst preparation area 200, a crushed aggregate recycling area 100 disposed at an inlet of the catalyst preparation area 200, and a control system 300 disposed at an outlet of the catalyst preparation area 200, the crushed aggregate recycling area 100 including a vibrating screen 110, a crusher 120 and a crusher 130 respectively connected to the outlet of the vibrating screen 110, the outlet of the crusher 120 being connected to the inlet of the crusher 130, the crusher 120 being configured to crush coarse crushed aggregates sieved from the vibrating screen 110 into fine aggregates, the crusher 130 being configured to receive the fine crushed aggregates sieved from the vibrating screen 110 and the fine aggregates obtained from the crusher 120 and further convert the fine aggregates into fine aggregates, the control system 300 being configured to recognize an appearance of a semi-finished catalyst product obtained from the catalyst preparation area 200 and to dynamically adjust preparation conditions of the catalyst preparation area 200.

Wherein the catalyst preparation zone 200 is a zone for conventional catalyst production; the crushed aggregates recovery area 100 is an area where catalyst crushed aggregates are prepared to meet the catalyst production raw material standard, the crushed aggregates recovery area 100 may be disposed upstream of the catalyst preparation area 200, and the vibrating screen 110 may screen the catalyst crushed aggregates into crushed aggregates coarse particles and crushed aggregates fine particles; the control system 300 may include a visual recognition device for recognizing the appearance of the catalyst semifinished product and a control element for dynamically regulating the preparation conditions of the catalyst preparation zone 200.

Further, the outlet of the vibrating screen 110 is provided with a coarse particle outlet 111 and a fine particle outlet 112. The catalyst crushed aggregates contain coarse particles and fine particles, wherein the coarse particles are further processed to be converted into fine particles and then mixed with the fine particles, and thus a coarse particle outlet 111 and a fine particle outlet 112 are separately provided at the outlet of the vibrating screen 110.

Further, a crusher 120 is connected to the coarse particle outlet 111, and a crusher 130 is connected to the fine particle outlet 112. In one embodiment, the fine particles of the crushed aggregates screened by the vibrating screen 110 directly enter the crusher 130 from the fine particle outlet 112, and the coarse particles of the crushed aggregates screened by the vibrating screen 110 first enter the crusher 120 from the coarse particle outlet 111 to be crushed into fine particles and then enter the crusher 130.

Further, the catalyst preparation zone 200 includes a silo 210, a discharge valve disposed at an outlet of the silo 210, a kneader 220 disposed downstream of the silo 210, and a former 230 connected to an outlet of the kneader 220. Wherein the bins 210 may be provided in plurality according to kinds of catalyst preparation raw materials, a discharging valve is provided at an outlet of each bin 210, the kneader 220 is used for sufficiently mixing various raw materials in the bins 210 and forming a plasticine-like material having a certain viscosity and plasticity, and the forming machine 230 is used for extrusion-forming the plasticine-like material obtained at the kneader 210 to obtain a catalyst semi-finished product having a desired shape. The bin 210 may be disposed upstream of the kneader 220, and preferably, as shown in fig. 1, the bin 210 may be disposed above the kneader 220 so that the catalyst preparation raw material mixture falls into the kneader 220.

Further, the bins 210 include a fine powder bin 211, a fresh raw material bin 212, an auxiliary agent bin 213, and a liquid bin 214. The raw materials for preparing the catalyst can be main raw materials, auxiliary agents and liquid, wherein the fine powder prepared from catalyst crushed aggregates and the fresh catalyst raw materials can be mixed according to any proportion to form the main raw materials, and the catalyst fine powder, the fresh catalyst raw materials, the auxiliary agents and the liquid are respectively stored in a fine powder storage bin 211, a fresh raw material storage bin 212, an auxiliary agent storage bin 213 and a liquid storage bin 214.

Further, a fine powder bin 211, a fresh raw material bin 212, an auxiliary agent bin 213 and a liquid bin 214 are arranged in parallel. The catalyst fine powder, the fresh raw materials of the catalyst, the auxiliary agent and the liquid are respectively stored in a fine powder storage bin 211, a fresh raw material storage bin 212, an auxiliary agent storage bin 213 and a liquid storage bin 214, so that the individual control of each storage bin is facilitated.

Further, the discharging valves of the fine powder bin 211, the fresh raw material bin 212, the auxiliary agent bin 213 and the liquid bin 214 are respectively provided with a discharging pipeline, a first end of the discharging pipeline is connected with the discharging valve, and a second end of the discharging pipeline is connected with an inlet of the kneader 220. In some embodiments, as shown in FIG. 1, the second end of the discharge conduit of each silo is connected to a main conduit through which it is connected to the inlet of kneader 220.

Further, the control system 300 is disposed at the outlet of the molding machine 230. The molding machine 230 is used for extruding the plasticine-like material obtained at the kneader 210 to obtain a catalyst semi-finished product with a required shape, and the control system 300 is arranged at the outlet of the molding machine 230, so that the appearance condition of the catalyst semi-finished product can be detected at the first time, and the preparation condition of the catalyst can be dynamically regulated in time.

Further, the control system 300 is respectively connected with the discharging valves of the fine powder bin 211, the fresh raw material bin 212, the auxiliary agent bin 213 and the liquid bin 214 to respectively control the discharging amount of each bin. Specifically, the control system 300 controls the opening size of each of the blanking valves according to the condition of the catalyst semifinished product observed at the outlet of the molding machine 230.

In some embodiments, identifying the appearance of the catalyst blank obtained in the catalyst preparation zone 200 may include identifying a surface gloss determination dryness of the catalyst blank, identifying a length determination continuity of the catalyst blank, identifying an edge integrity determination roughness of the catalyst blank. Specifically, the dryness and humidity are determined according to the surface gloss of the semi-finished catalyst, and if the semi-finished catalyst is dry or wet, the control system 300 can regulate the blanking valve of the liquid bin 214 to increase or decrease the liquid blanking amount; judging the continuity according to the length of the catalyst semi-finished product, if the catalyst semi-finished product is easy to break or the continuity is too good, the control system 300 can regulate and control the blanking valve of the auxiliary agent bin 213 to increase or decrease the auxiliary agent blanking amount; judging roughness according to the edge integrity of the catalyst semi-finished product, if the surface of the catalyst semi-finished product is rough, the control system 300 can regulate the blanking valves of the fine powder bin 211 and the fresh raw material bin 212 to reduce the fine powder blanking amount and increase the fresh raw material blanking amount; if the catalyst semi-finished product surface is smooth, the control system 300 may adjust the blanking valves of the fines bin 211 and the fresh raw material bin 212 to increase the fines blanking amount and decrease the fresh raw material blanking amount. The control system 300 can dynamically regulate and control the discharging amount of catalyst fine powder, fresh raw materials, auxiliary agents and liquid, and meanwhile, on the premise of obtaining a semi-finished catalyst product meeting the standard, the using amount of the catalyst fine powder is increased as much as possible, and the recycling rate of catalyst crushed aggregates is improved as much as possible.

Further, the material transportation of the fixed bed catalyst preparation device adopts belt conveying. The material transportation mode can also be pipeline transportation, manual transportation or combination of the above modes.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed therewith; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, reference to the term "one embodiment" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the various embodiments described in this specification, as well as the features of the various embodiments, can be combined and combined by one skilled in the art without contradiction.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. The technical solution of the utility model can be subjected to a plurality of simple variants within the scope of the technical idea of the utility model. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims

1. A fixed bed catalyst preparation device for scrap recycling, characterized in that the fixed bed catalyst preparation device for scrap recycling comprises a catalyst preparation zone (200), a scrap recycling zone (100) arranged at the inlet of the catalyst preparation zone (200) and a control system (300) arranged at the outlet of the catalyst preparation zone (200), wherein the scrap recycling zone (100) comprises a vibrating screen (110), a crusher (120) and a pulverizer (130) respectively connected with the outlet of the vibrating screen (110), the outlet of the crusher (120) is connected with the inlet of the pulverizer (130), the crusher (120) is arranged to crush coarse particles of the crushed scraps screened from the vibrating screen (110) into fine particles, the pulverizer (130) is arranged to receive the fine particles screened from the vibrating screen (110) and the fine particles obtained from the crusher (120) and further convert the fine particles into fine powder, and the control system (300) is arranged to identify the appearance of the catalyst obtained from the catalyst preparation zone (200) and to regulate the dynamic conditions of the semi-catalyst preparation zone (200).

2. The fixed bed catalyst preparation device for crushed aggregates recycling according to claim 1, wherein the outlet of the vibrating screen (110) is provided with a coarse particle outlet (111) and a fine particle outlet (112).

3. The fixed bed catalyst preparation device for crushed aggregates recycling according to claim 2, wherein the crusher (120) is connected to the coarse particle outlet (111), and the crusher (130) is connected to the fine particle outlet (112).

4. The fixed bed catalyst preparation apparatus for crushed aggregates recycling according to claim 1, wherein the catalyst preparation zone (200) comprises a silo (210), a discharge valve provided at an outlet of the silo (210), a kneader (220) provided downstream of the silo (210), and a forming machine (230) connected to an outlet of the kneader (220).

5. The fixed bed catalyst preparation device for crushed aggregates recycling according to claim 4, wherein the bin (210) comprises a fine powder bin (211), a fresh raw material bin (212), an auxiliary agent bin (213) and a liquid bin (214).

6. The fixed bed catalyst preparation device for crushed aggregates recycling according to claim 5, wherein the fine powder bin (211), the fresh raw material bin (212), the auxiliary agent bin (213) and the liquid bin (214) are arranged in parallel.

7. The fixed bed catalyst preparation device for crushed aggregates recycling according to claim 6, wherein the fine powder bin (211), the fresh raw material bin (212), the auxiliary agent bin (213) and the liquid bin (214) are provided with blanking pipelines at the blanking valves, a first end of the blanking pipeline is connected with the blanking valve, and a second end of the blanking pipeline is connected with an inlet of the kneader (220).

8. The fixed bed catalyst preparation apparatus for particle recycling according to claim 5, characterized in that the control system (300) is arranged at the outlet of the forming machine (230).

9. The fixed bed catalyst preparation device for crushed aggregates recycling according to claim 8, wherein the control system (300) is connected with the discharging valves of the fine powder bin (211), the fresh raw material bin (212), the auxiliary agent bin (213) and the liquid bin (214) respectively to control the discharging amount of each bin respectively.

10. The fixed bed catalyst preparation device for recycling crushed aggregates according to any one of claims 1 to 9, wherein the fixed bed catalyst preparation device is transported by a belt.