CN111992497A - Simple catalyst screening device - Google Patents

Abstract

The invention relates to a simple catalyst screening device which comprises a blanking guide pipe, wherein a feeding hole is formed in the upper end of the blanking guide pipe, a discharging hole is formed in the lower end of the blanking guide pipe, a screen is arranged below the discharging hole, the screen is inclined from one side close to the discharging hole to the other side from top to bottom, and an ash receiving plate is further arranged below the screen. The invention has compact structure and convenient use, can quickly unload and screen, lightens the manual operation intensity and is beneficial to improving the labor efficiency.

Description

Simple catalyst screening device

Technical Field

The invention relates to the technical field of screening devices, in particular to a simple catalyst screening device.

Background

The WSA acid making system adopts a catalyst for accelerating the conversion of sulfur dioxide into sulfur trioxide, the main component of the catalyst is diatomite carrying vanadium pentoxide, and in the long-term use process, the catalyst has the problems of breakage and pulverization, so that the resistance of a catalyst layer is increased, and the operation of the acid making system is influenced. In order to keep the resistance of the catalyst layer normal and the activity of the catalyst, the screening is performed periodically. The current screening of Shao Steel adopts a manual screening mode, and the specific operation is that an operator enters the inside of equipment, packs a catalyst in the equipment, sends the catalyst to the outside of the equipment, carries the equipment under the equipment by manpower, sends the catalyst to a screen and then carries out manual screening. In the screening process, a person pushes the screen, the finished product is poured into the bag after the screening is finished, and the screened ash falls to the ground and is manually cleaned.

And the manual screening is adopted, so that the following problems exist: the manual labor intensity is large, and the working efficiency is low; the frequent loading and unloading of the personnel and the equipment can cause safety problems; the manual screening lift is large, and the environmental protection is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a simple catalyst screening device which is compact in structure, convenient to use, capable of quickly discharging and screening, capable of reducing manual operation intensity and beneficial to improvement of labor efficiency.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a simple and easy catalyst screening plant, includes the unloading pipe, unloading pipe upper end is equipped with the pan feeding mouth, unloading pipe lower extreme is equipped with the discharge gate, the discharge gate below is equipped with the screen cloth, just the screen cloth from the top by being close to a lateral opposite side slope of discharge gate, the screen cloth below still is equipped with connects the hawk.

In one embodiment, the spout is duckbilled.

In one embodiment, a catalyst feed opening is formed in one side, away from the discharge opening, of the screen, side baffles and oblique flow guide baffles are respectively arranged on the left side and the right side of the screen in the oblique direction, and the side baffles and the oblique flow guide baffles are used for guiding the catalyst to be concentrated towards the catalyst feed opening.

In one embodiment, one side of the ash receiving plate is provided with an ash receiving opening, and the ash receiving plate inclines towards the ash receiving opening from one side far away from the ash receiving opening from top to bottom.

In one embodiment, the inclination direction of the ash receiving plate is opposite to that of the screen, and an ash baffle plate is arranged between the edge of the ash receiving plate and the edge of the screen.

In one embodiment, the inclination angle of the ash receiving plate and the screen is 10-20 degrees.

In one embodiment, the blanking conduit is stepped and comprises a vertical section and an inclined section, and the inclined sections of the blanking conduit are inclined downwards along the discharging direction of the catalyst.

In one embodiment, the length of the inclined section is 1.5 to 2 times the length of the vertical section, and the inclined section of the blanking duct is inclined at the same angle as the screen.

In one embodiment, the feeding port is arranged on one side of the upper end of the blanking conduit, and the inclination angle of the feeding port is consistent with that of the inclined section.

In one embodiment, the screening devices are made of a lightweight corrosion resistant material.

In conclusion, the invention has the following beneficial effects:

1. the invention has compact structure and convenient use, can quickly unload and screen, lightens the manual operation intensity and is beneficial to improving the labor efficiency.

2. The duckbilled discharge port has the function of enlarging the outlet of the material nozzle, and is favorable for reducing splashing and flying dust caused by the falling of the catalyst. The screen is designed obliquely, so that under the impact of the dead weight of catalyst particles, the rolling of the catalyst on the screen is facilitated, and the powder in the catalyst is quickly separated. The device utilizes the dead weight of the catalyst and no power equipment, and is favorable for safe operation. The blanking conduit is made of light corrosion-resistant materials, so that the safety problems caused by difficulty in installation and self weight can be reduced.

3. Unloading pipe fixed mounting is on the steel structure of equipment, for the convenience of unloading, fixed mounting has pan feeding mouth and discharge gate on the unloading pipe, the effect of the discharge gate of duckbilled form lies in preventing unloading pipe unloading in-process because the fast catalyst that causes of material splashes, the screen cloth is the slope installation, the screen cloth both sides are fixed with the side shield, be convenient for catalyst flow direction catalyst material mouth, install slant water conservancy diversion baffle on the screen cloth, the end at the screen cloth is installed to the catalyst feed opening, install below the screen cloth and connect the hawk, connect the both sides of hawk to install the ash blocking board, connect the ash mouth to install and connect the end of hawk, be used for collecting the screening powder.

Drawings

FIG. 1 is a schematic structural diagram of a simple catalyst screening device according to the present invention;

figure 2 is a top view of a simple catalyst screening device of the present invention.

In the figure: 1-feeding port, 2-blanking conduit, 3-discharging port, 4-screen, 5-catalyst discharging port, 6-side baffle, 7-oblique flow guide baffle, 8-ash receiving plate, 9-ash receiving port and 10-ash blocking plate.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.

As shown in fig. 1 and 2, the simple catalyst screening device comprises a feeding conduit 2, a feeding port 1 is arranged at the upper end of the feeding conduit 2, a discharging port 3 is arranged at the lower end of the feeding conduit 2, a screen 4 is arranged below the discharging port 3, the screen 4 is inclined from one side close to the discharging port 3 to the other side from top to bottom, and an ash receiving plate 8 is arranged below the screen 4. The invention has compact structure and convenient use, can quickly unload and screen, lightens the manual operation intensity and is beneficial to improving the labor efficiency.

In this embodiment, discharge gate 3 is the duckbill, and the effect of the discharge gate 3 of duckbill is that enlarge the material mouth export, is favorable to reducing splash and raise dust that catalyst whereabouts caused. The screen 4 is designed obliquely, so that under the impact of the dead weight of catalyst particles, the rolling of the catalyst on the screen 4 is facilitated, and the powder in the catalyst is quickly separated. The device utilizes the dead weight of the catalyst and no power equipment, and is favorable for safe operation. Connect grey board 8 one side to be equipped with and connect grey mouth 9, and connect grey board 8 from the top to connect grey mouth 9 slope by keeping away from one side that connects grey mouth 9 to collect the dust powder that falls on connecing grey board 8.

In this embodiment, a catalyst feed opening 5 is disposed on one side of the screen 4 away from the discharge opening 3, side baffles 6 and an oblique flow guiding baffle 7 are disposed on the left and right sides of the screen 4 along the oblique direction, respectively, and the side baffles 6 and the oblique flow guiding baffle 7 are used for guiding the catalyst to concentrate toward the catalyst feed opening 5. The catalyst needs to pass through the screen 4 and gradually gather, reaches the catalyst feed opening 5 under the inclined arrangement of the screen 4 and the guide of the side baffle 6 and the inclined flow guide baffle 7 and is bagged, and the catalyst feed opening 5 is positioned so that the catalyst cannot directly impact the catalyst feed opening 5 due to inertia and must roll on the screen 4 for a certain distance to effectively remove the powder carried by the catalyst.

In the present embodiment, the dust receiving plate 8 is inclined in the opposite direction to the screen 4, and a dust blocking plate 10 is provided between the rear side of the dust receiving plate 8 and the rear side of the screen 4. Because the catalyst unloading, it has certain inertia to come out from discharge gate 3 and to smuggle the dust secretly, after the dust powder falls and passes screen cloth 4 to slow down its raise dust phenomenon, the dust powder needs reverse direction motion just can fall into and connects ash hole 9, under the effect of dust baffle 10, effectively prevents the raise dust of screening in-process. The ash receiving opening 9 is positioned at the edge of the rear side of the ash receiving plate 8 and is far away from the catalyst feed opening 5. The arrangement also lengthens the movement distance of the dust powder as much as possible, so that the dust powder does not have larger kinetic energy any more, and the possibility of dust flying is reduced.

In the present embodiment, the inclination angles of the ash receiving plate 8 and the screen 4 are both 15 °. The inclination of the ash receiving plate 8 and the screen 4 is to provide power for the catalyst or dust to move to the set position, but in order to avoid the too fast movement, the dust may not fall under the screen 4, or the power is too large, so that the catalyst particles collide with each other and are easily broken, therefore, a small inclination angle needs to be arranged to achieve the balance of power supply and screening effect.

In this embodiment, the feeding pipe 2 is stepped and includes a vertical section and an inclined section, and the inclined sections of the feeding pipe 2 are inclined downwards along the catalyst discharging direction. The arrangement of the blanking conduit 2 avoids the catalyst from forming a large fall in the interior to cause a large amount of collision, so that the vertical section falls to reduce the occupied space of the blanking conduit 2, and meanwhile, the inclined sections are arranged at intervals to slow down the blanking speed. The length of the inclined section is 1.5 times of the length of the vertical section, stable blanking can be better realized according to the proportion, particularly, the position of the discharge port 3 is in the inclined section, the inclination angle of the inclined section of the blanking guide pipe 2 is consistent with that of the screen 4, and the inclined section where the discharge port 3 is positioned is adaptive to that of the screen 4, so that the subsequent rolling speed of each catalyst particle is different during screening, and excessive collision is caused.

In this embodiment, the feeding port 1 is disposed at one side of the upper end of the feeding conduit 2, and since it directly enters the vertical section of the feeding conduit 2, the inclination angle of the feeding port 1 needs to be consistent with that of the inclined section, so as to gradually increase the falling speed and reduce the occurrence of the crash and the like. The blanking conduit 2 is made of light corrosion-resistant material, so that the safety problems caused by the installation difficulty and the self weight can be reduced.

When the invention is used, the catalyst cleaned from the device is poured from the material inlet 1, the catalyst flows from the material discharging pipe 2 to the material outlet 3, due to the special design of the discharge port 3, the falling speed of the catalyst from the blanking conduit 2 is favorably slowed down, the loss caused by the fragmentation generated by the impact of the catalyst is reduced, the catalyst from the discharge port 3 passes through the screen 4 with an inclined design, the catalyst starts to flow downwards from the top end of the screen 4, in order to prevent the catalyst from falling out of the device, the side baffle 6 is arranged on the periphery of the screen 4, dust in the catalyst is separated by the screen 4 in the flowing process of the catalyst, and for the convenience of bagging, an inclined flow guide baffle 7 is arranged at the middle lower part of the screen 4, the catalyst flows to the catalyst feed opening 5 under the guiding action of the inclined flow guide baffle 7, and finally the catalyst is collected and bagged at the catalyst feed opening 5. The dust screened out by screen cloth 4 falls into and connects hawk 8, connects hawk 8 to be the slope design equally to the dust flow direction connects grey mouth 9, and the design has ash blocking plate 10 between hawk 8 and screen cloth 4, thereby has avoided the raise dust of catalyst screening in-process.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. The utility model provides a simple and easy catalyst screening plant, its characterized in that includes unloading pipe (2), unloading pipe (2) upper end is equipped with pan feeding mouth (1), unloading pipe (2) lower extreme is equipped with discharge gate (3), discharge gate (3) below is equipped with screen cloth (4), just screen cloth (4) from the top by being close to a lateral opposite side slope of discharge gate (3), screen cloth (4) below still is equipped with connects hawk (8).

2. The simple catalyst screening device of claim 1, wherein the outlet (3) is duckbilled.

3. The simple catalyst screening device according to claim 1, wherein a catalyst feed opening (5) is formed in one side of the screen (4) away from the discharge opening (3), side baffles (6) and oblique flow guide baffles (7) are respectively formed in the left side and the right side of the screen (4) along the oblique direction, and the side baffles (6) and the oblique flow guide baffles (7) are used for guiding the catalyst to be concentrated towards the catalyst feed opening (5).

4. The simple catalyst screening device of claim 1, wherein one side of the ash receiving plate (8) is provided with an ash receiving opening (9), and the ash receiving plate (8) is inclined from the side far away from the ash receiving opening (9) to the ash receiving opening (9) from top to bottom.

5. The simple catalyst screening device of claim 4, characterized in that the ash receiving plate (8) and the screen (4) are inclined in opposite directions, and an ash baffle plate (10) is arranged between the edge of the ash receiving plate (8) and the edge of the screen (4).

6. The simple catalyst screening device of claim 3 or 4, wherein the inclination angles of the ash receiving plate (8) and the screen (4) are both 10-20 degrees.

7. The simple catalyst screening device of claim 6, wherein the blanking conduit (2) is stepped and comprises a vertical section and an inclined section, and the inclined sections of the blanking conduit (2) are inclined downwards along the catalyst discharging direction.

8. The simple catalyst screening device of claim 7, wherein the length of the inclined section is 1.5 to 2 times of the length of the vertical section, and the inclined angle of the inclined section of the blanking conduit (2) is the same as the inclined angle of the screen (4).

9. The simple catalyst screening device of claim 8, wherein the material inlet (1) is arranged at one side of the upper end of the blanking conduit (2), and the inclination angle of the material inlet (1) is consistent with that of the inclined section.

10. A simplified catalyst screening device as set forth in claim 9 wherein said screening devices are constructed of lightweight corrosion resistant material.

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