CN215695839U

CN215695839U - Converter catalyst cleaning system and mobile unit

Info

Publication number: CN215695839U
Application number: CN202122238895.0U
Authority: CN
Inventors: 李福利; 郭成军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-01
Anticipated expiration: 2031-09-15

Abstract

The application discloses a converter catalyst cleaning system and vehicle-mounted equipment, wherein the cleaning system comprises an extraction pipe; the suction generating device is communicated with the extracting pipe and used for providing negative pressure suction to extract the catalyst and generating airflow for grading the catalyst according to the granularity; grading plant, through extraction union coupling converter, including the vacuum casing, be equipped with material entry end, first material exit end and second material exit end on the vacuum casing, the material entry end is connected the extraction pipe, second material exit end is located the top of first material exit end and with suction generating device intercommunication, first material exit end coaxial coupling has the loudspeaker cover, the cooperation of loudspeaker cover the inner chamber of vacuum casing constitutes the classification district, and the catalyst is in the classification district is graded according to the granularity. This application has realized that the catalyst does not have raise dust and does not have harmful gas's clearance to alleviateed the amount of labour, improved work efficiency.

Description

Converter catalyst cleaning system and mobile unit

Technical Field

The application relates to the technical field of chloroethylene production, in particular to a converter catalyst cleaning system and vehicle-mounted equipment.

Background

At present, the catalyst in the traditional chloroethylene converter is replaced mainly by manual open-air operation, the upper part and the bottom end socket of the converter are manually opened, the catalyst is automatically discharged to the ground by means of gravity, and the catalyst is manually screened and then packaged.

On one hand, a large amount of catalyst is poured onto the ground at the moment of opening the bottom end socket of the converter, a large amount of dust and harmful gas are generated, and on the other hand, a large amount of carbon powder is diffused in the manual screening and packaging process, so that great threats are caused to the surrounding environment and the physical health of workers; moreover, multiple workers are required to participate in the replacement work of the catalyst in 1 converter every time, the time is about 8 hours, time and labor are consumed, and the workers are in a heavily polluted working environment for a long time.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defects or shortcomings in the prior art, it is desirable to provide a converter catalyst cleaning device and an on-board device, so as to avoid raising dust and harmful gas, reduce labor intensity and improve work efficiency.

As a first aspect of the present application, a converter catalyst cleaning system is provided.

Preferably, the converter catalyst cleaning system comprises:

an extraction pipe;

the suction generating device is communicated with the extracting pipe and used for providing negative pressure suction to extract the catalyst and generating airflow for grading the catalyst according to the granularity; and

grading plant, through extraction union coupling converter, including the vacuum casing, be equipped with material entry end, first material exit end and second material exit end on the vacuum casing, the material entry end is connected the extraction pipe, second material exit end is located the top of first material exit end and with suction generating device intercommunication, first material exit end coaxial coupling has the loudspeaker cover, the cooperation of loudspeaker cover the inner chamber of vacuum casing constitutes the classification district, and the catalyst is in the classification district is graded according to the granularity.

Preferably, the bell jar is configured to be translatable in an axial direction of the first material outlet end such that the flow rate of the gas stream in the staging device is adjusted by translating the bell jar.

Preferably, the first material outlet end is provided with a first material storage chamber, the second material outlet end is provided with a second material storage chamber, coarse particles in the classification region enter the first material storage chamber through the horn cover, and fine particles in the classification region are brought into the second material storage chamber by the airflow.

Preferably, a filtering device is arranged in the second material storage chamber along the airflow direction, and an outlet of the filtering device is connected with an air suction port of the suction force generating device.

Preferably, a silencer is connected to an exhaust port of the suction generator.

Preferably, the first material storage chamber and the second material storage chamber are both provided with material discharge ports.

Preferably, the first material storage chamber and the second material storage chamber are both provided with an inert gas charging device.

Preferably, the free end of the extraction tube is provided with a suction head, through which the extraction tube is connected to the converter.

Preferably, the number of the extraction pipes and the suction heads is multiple, and the extraction pipes and the suction heads correspond to each other one by one.

As a second aspect of the present application, the present application provides an in-vehicle apparatus.

Preferably, the on-board equipment includes a converter catalyst cleaning system as described above.

The beneficial effect of this application:

this application has realized through negative pressure suction and air current grading that there is not the catalyst leak, no raise dust, the clearance of automatic screening, and safety ring protects, has reduced manual operation, has reduced intensity of labour, has improved work efficiency.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a converter catalyst cleaning system according to an embodiment of the present application;

FIG. 2 is a schematic illustration of the converter and suction line connection of one embodiment of the present application;

FIG. 3 is another schematic illustration of the converter in connection with the suction line according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an in-vehicle device according to an embodiment of the present application;

FIG. 5 is a schematic diagram of a converter connected to an onboard device according to an embodiment of the present application;

fig. 6 is another schematic diagram of an in-vehicle device according to an embodiment of the present application.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting.

It should be noted that in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

It should be noted that unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixed or removable connections or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

According to a first aspect of the embodiments of the present application, please refer to fig. 1, which shows a converter catalyst cleaning system of a preferred embodiment of the present application, comprising an extraction pipe 1, a classification device 2 and a suction force generation device 3, wherein the suction force generation device 3 is communicated with the extraction pipe 1 for providing negative pressure suction force to extract the catalyst and generating an air flow for classifying the catalyst according to the particle size; grading plant 2 passes through 1 converter 4 of connection of extraction tube, including vacuum casing 20, be equipped with material entry end 21, first material exit end 22 and second material exit end 23 on the vacuum casing 20, material entry end 21 is connected extraction tube 1, second material exit end 23 is located first material exit end 22 the top and with suction generating device 3 intercommunication, first material exit end 22 coaxial coupling has loudspeaker cover 24, loudspeaker cover 24 cooperation the inner chamber of hollow casing 20 constitutes the classification district, and the catalyst is in the classification district is hierarchical according to the granularity.

Specifically, the extraction pipe 1 is used for connecting a catalyst pipeline 40 of the converter 4, and under the action of negative pressure suction, a catalyst to be cleaned or replaced in the catalyst pipeline 40 is sucked into the grading device 2 through the extraction pipe 1, and is discharged after being graded according to the granularity in the grading device 2;

the inner cavity of the horn cover 24 and the inner cavity of the hollow shell 20 are used as grading areas, the sucked catalyst enters the grading device 2 along with the air flow from the material inlet end 21, then flows downwards along the annular inner wall of the horn cover 24, flows upwards through the annular inner wall, and flows out from the second material outlet end 23, and the air flow generates vortexes in the grading areas to form a flow field with uniform and stable speed; in the process, because the catalysts with different particle sizes, specifically, the granular catalysts and the powdery catalysts have different masses, coarse particles are settled downwards along the inner wall of the inclined horn cover 24 through self gravity and discharged from the outlet end of the horn cover 24, and fine particles are carried by the air flow and discharged from the outlet end 23 of the second material, so that the effective separation of the granular catalysts and the powdery catalysts is realized, the particle size classification is carried out by the air flow in the embodiment, and compared with the traditional vibrating screen classification, the particle-type catalytic sieve has the advantages of compact structure, no risk of sieve pore blockage and the like;

when the cleaning system of the embodiment cleans the catalyst, the top end enclosure of the converter 4 is only required to be opened to expose the inlet of the catalyst pipeline 40, and the suction pipe 1 is connected with the inlet of the catalyst pipeline 40, so that the suction and the automatic screening of the catalyst can be completed; on the other hand, grading plant 2 makes the automatic screening of catalyst be powdered material and granular material, need not to carry out artifical screening, has not only reduced intensity of labour, has improved work efficiency, has avoided the raise dust of manual screening time moreover.

Further, in some preferred embodiments of the present application, the bell jar 24 is configured to be translatable in an axial direction of the first material outlet end 22 such that the flow rate of the gas stream in the staging device 2 is adjusted by translating the bell jar 24.

Specifically, in some embodiments, the opposite upper and lower ends of the hollow shell 20 are opened to form a first material outlet end 22 and a second material outlet end 23, the side wall of the hollow shell 20 is opened to form a material inlet end 21, the bell-shaped cover 24 includes a connecting portion 240 and a bell-mouth portion 241, the connecting portion 240 has a shape and a size matched with the first material outlet end 22, a central axis thereof coincides with central axes of the first material outlet end 22 and the second material outlet end 23, the connecting portion 240 is inserted into the hollow shell 20 from the first material outlet end 22, a part of the connecting portion 240 is located in the hollow shell 20, and a part located in the hollow shell 20 is configured not to affect the air flow among the material inlet end 21, the second material outlet end 23 and the hollow shell 20, an inner cavity of the bell-shaped cover 24 and an inner cavity of the hollow shell 20 not occupied by the connecting portion 240 serve as a classification region, by translating the connecting portion 240 in the axial direction of the first material outlet end 22, the distance between the bell-shaped housing 24 and the first material outlet end 22, in particular the distance of insertion of the connecting portion 240 into the hollow housing 20, is adjusted, so that the area of the classification zone is changed, the flow rate of the air flow in the classification device 2 being adjusted by enlarging or reducing the area of the classification zone;

illustratively, after the trumpet cover 24 translates in the direction away from the first material outlet end 22, the area of the classification zone increases, the flow rate of the gas flow decreases, the catalyst with the settling rate greater than the flow rate of the gas flow settles downwards, and the catalyst with the settling rate less than the flow rate of the gas flow is carried away by the gas flow, wherein the settling rate of the catalyst is related to the mass thereof, thereby realizing the adjustment of the classification particle size of the catalyst.

Wherein the horn housing 24 is fixedly attached to the first material outlet end 22 by bolts.

The cleaning system of the embodiment realizes the adjustment of the classification granularity by manually adjusting the flow of the airflow under the condition of not changing the speed of the suction generating device, and compared with mechanical screening, the method for changing the screening granularity by adjusting the size of the screen hole is simple and flexible, and can perform any granularity classification.

Further, in some preferred embodiments of the present application, the first material outlet end 22 is provided with a first material storage chamber 51, the second material outlet end 23 is provided with a second material storage chamber 52, coarse particles in the classification region enter the first material storage chamber 51 through the trumpet cover 14, and fine particles in the classification region are carried into the second material storage chamber 52 by the airflow.

Specifically, the inlet of the first material storage chamber 51 is in fluid communication with the bell mouth portion 240 of the bell-shaped cover 24, and the inlet of the second material storage chamber 52 is in fluid communication with the second material outlet end 23 through a pipeline, so that the separation and collection of the granular catalyst and the powdery catalyst are realized;

the first material storage chamber 51 is positioned below the first material outlet end 22, and the second material storage chamber 52 is positioned below the second material outlet end 23, so that the separated catalyst can fall and be discharged under the action of gravity more easily;

wherein, coarse particles refer to particles with a settling rate greater than the flow rate of the gas stream, and fine particles refer to particles with a settling rate less than the flow rate of the gas stream.

Further, in some preferred embodiments of the present application, a filtering device 6 is disposed inside the second material storage chamber 52 along the airflow direction, and an outlet of the filtering device 6 is connected to the suction port of the suction force generating device 3.

Specifically, after the powdered catalyst enters the second material storage chamber 52 along with the airflow, the powdered catalyst is separated from the gas by the filter device 6, the powdered catalyst settles into the second material storage chamber 52, and the gas is purified by the filter device 6 and then discharged from the outlet of the filter device 6, and further discharged from the suction generating device 3 through the pipeline connected with the suction generating device 3.

Further, in some preferred embodiments of the present application, a sound-deadening device 7 is connected to the exhaust port of the suction generating device 3.

Specifically, the inlet of the silencer 7 is connected to the exhaust port of the suction generator 3 through a pipe, and the exhaust gas enters the silencer 7 to eliminate noise and is then discharged to the environment through the outlet of the silencer.

The embodiment of this application has realized gaseous pollution-free, low noise emission, green through filter equipment 6 and silencing device 7.

In some preferred embodiments of the present application, the negative pressure generated by the suction generating device 3 preferably has a value of-50 KPa to-80 KPa; the preferable airflow rate is 3600-7400 m³/h。

In some preferred embodiments of the present application, the suction generator 3 is equipped with a protection device that enables long-term outdoor operation, and the protection device has multiple functions of cooling, rain-proof, dust-proof, noise reduction, etc., and ensures that it can work normally for a long time.

Wherein, in some preferred embodiments of the present application, the suction generating device 3 is a constant volume roots pump.

In some preferred embodiments of the present application, the first material storage chamber 51 and the second material storage chamber 52 are both provided with a material discharge port 53, the material discharge port 53 can be connected with an external packaging bag, so as to realize the dust-free packaging of the catalyst.

The material discharge port 53 is provided with a discharge valve and an interface for connecting a packaging bag, and the discharge valve can control the discharge speed and discharge amount in real time to realize fully-closed and dust-free packaging.

Further, in some preferred embodiments of the present application, an inert gas charging device (not shown) is disposed on each of the first material storage chamber 51 and the second material storage chamber 52.

Specifically, when the catalyst separated into the first material storage chamber 51 and the second material storage chamber 52 is not discharged in time and needs to be stored in the first material storage chamber 51 and the second material storage chamber 52 for a long time, since the catalyst is easily ignited by open fire when contacting with oxygen, the catalyst can be effectively prevented from being ignited by charging inert gas, thereby avoiding safety accidents; wherein the inert gas is nitrogen.

Further, in some preferred embodiments of the present application, as shown in fig. 1 and 2, the free end of the extraction duct 1 is provided with a suction head 10, and the extraction duct 1 is connected to the converter 4 through the suction head 10.

Specifically, the suction head 10 is connected to the inlet of the catalyst pipe 40, and the suction head 10 has a shape and a size matching the inlet of the catalyst pipe 40, and vacuum seals the inlet of the catalyst pipe at the time of suction, so as to perform negative pressure suction.

Further, in some preferred embodiments of the present application, the number of the extraction pipes 1 and the number of the suction heads 10 are both multiple, and the extraction pipes 1 and the suction heads 10 correspond to each other one by one.

Specifically, the converter 4 has a plurality of catalyst pipelines 40 therein, and the number can reach more than 2000, and through setting up a plurality of extraction pipes 1, for example 6 extraction pipes 1, can extract the catalyst of a plurality of catalyst pipelines 40 simultaneously to improve the operating efficiency.

Further, in some preferred embodiments of the present application, as shown in fig. 3, the cleaning system is installed at a fixed position, and a plurality of extraction pipes 1 can be simultaneously connected with a plurality of converters, so that the catalyst of the plurality of converters can be cleaned simultaneously.

Further, in some preferred embodiments of the present application, as shown in fig. 2, a material suction connector 11 is disposed at an inlet of the catalyst pipeline 40, a plurality of suction ports 12 communicated with the inside of the catalyst pipeline 40 are disposed on the material suction connector 11, one suction port 12 corresponds to one catalyst pipeline 40, when in use, the material suction connector 11 is connected to the inlet of the catalyst pipeline 40, each suction port 12 is communicated with its corresponding catalyst pipeline 40, and then a plurality of suction heads 10 are connected to one suction port 12, so as to implement simultaneous operation on a plurality of catalyst pipelines 40.

Further, in some preferred embodiments of the present application, as shown in fig. 1 and 2, the suction head 10 is connected to the suction port 12 through a suction connecting pipe 13, one end of the suction connecting pipe 13 is connected to the suction port 12, and the other end of the suction connecting pipe 13 extends out of the top of the converter 4 and is connected to the suction head 10.

Wherein, in the embodiment of this application, extraction pipe 1 or at least partial extraction pipe 1 are wobbling hose, and the quality is light, and easy the removal is put, and the operating personnel of being convenient for removes and is convenient for be connected to the catalyst pipeline, prefers the part that extraction pipe 1 is connected with grading plant 2's material entry end 21 is the vacuum pipe 14 of steel material, and the part of being connected with catalyst pipeline 40 is transparent hose 15, and preferred extraction pipe 1 comprises vacuum pipe 14 and transparent hose 15 two parts promptly, and vacuum pipe 14 and transparent hose 15 pass through flange joint.

Further, in some preferred embodiments of the present application, the cleaning system further comprises a driving device 8 for driving the suction generating device 3.

Further, in some preferred embodiments of the present application, the cleaning system further comprises a control device for controlling the action process of the cleaning system, specifically for performing electrification control on the negative pressure value and the air flow rate of the negative pressure suction and controlling the discharge of the collected catalyst.

Further, in some preferred embodiments of the present application, the components of the cleaning system, the connecting pipes, the suction head, etc. of the embodiments of the present application are made of materials with antistatic and explosion-proof levels up to exdIICT4, such as steel materials; and because the normal temperature of pumping of catalyst is not less than 90 ℃, contain a small amount of chlorine in the catalyst simultaneously, so the whole clearance system of this application embodiment needs to carry out high temperature resistant corrosion-resistant design, for example adopts corrosion resistance and high temperature resistant material, or carries out the cooling treatment to the part that needs the protection.

In one embodiment of the present application, the first material storage chamber 51 and the second material storage chamber 52 of the cleaning system have a size of not less than 9m³The effective volume of the reactor is provided with 6 movable extraction pipes 1, the negative pressure value of the system is-50 to-80 KPa, the airflow flow rate is 3600 to 7400m3/h, about 2000 catalyst pipelines 40 are arranged in the converter to be cleaned, the inner diameter of each catalyst pipeline 40 is 50mm, the length is 3000mm, the catalyst is vertically arranged up and down, each pipeline is filled with the catalyst, and about 9m is arranged in the converter 4³The catalyst storage of the cleaning system is that the time for cleaning one catalyst pipeline by each extraction pipe 1 is less than 30 seconds, the catalyst suction of the whole converter is completed only in less than 2 hours, the time is reduced by 5-6 hours compared with the time for completing the same work originally, and the work efficiency is obviously improved.

Referring to fig. 4-6, according to a second aspect of an embodiment of the present application, an on-board device is shown, which includes the converter catalyst cleaning system as described above.

In particular, the cleaning system is carried in a vehicle, thereby providing a mobile catalytic cleaning device that greatly facilitates converter catalytic cleaning and replacement.

In some embodiments of the present application, the vehicle-mounted device has a retractable lifting device 9, when the catalyst is sucked and classified and the material needs to be unloaded, the first material storage chamber 51 and the second material storage chamber 52 are in an inclined state, which is convenient for the material to flow out, and the unloading efficiency is improved. Wherein, in some embodiments, 9m is completed³The catalyst package of (2) takes only 15 minutes.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A converter catalyst cleanup system, comprising:

an extraction pipe;

2. The converter catalyst cleaning system of claim 1, wherein the bell jar is configured to be translatable in an axial direction of the first material outlet end such that a flow rate of the gas flow in the staging device is regulated by translating the bell jar.

3. The converter catalyst cleaning system of claim 2, wherein the first material outlet end is provided with a first material storage chamber, the second material outlet end is provided with a second material storage chamber, the coarse particles of the classification zone enter the first material storage chamber through the trumpet cover, and the fine particles of the classification zone are carried into the second material storage chamber by the airflow.

4. The catalytic converter cleaning system according to claim 3, wherein a filter device is disposed in the second material storage chamber along the air flow direction, and an outlet of the filter device is connected to the suction port of the suction generator.

5. The catalytic converter cleaning system according to claim 4, wherein a muffler is connected to the exhaust port of the suction generator.

6. The converter catalyst cleaning system of claim 3, wherein the first storage chamber and the second storage chamber are each provided with a material discharge port.

7. The catalytic converter cleaning system according to claim 3, wherein the first storage chamber and the second storage chamber are provided with inert gas charging means.

8. The converter catalyst cleaning system of claim 1, wherein the free end of the extraction pipe is provided with a suction head, through which the extraction pipe is connected to the converter.

9. The converter catalyst cleaning system according to claim 8, wherein the number of the extraction pipes and the suction heads is plural, and the extraction pipes and the suction heads correspond one to one.

10. An in-vehicle apparatus characterized by comprising the converter catalyst cleaning system according to any one of claims 1 to 9.