CN210875368U - Denitration catalyst extrusion feeding device - Google Patents

Abstract

The utility model discloses a denitration catalyst extrusion feeding device, which comprises a pre-filtering device, an extruder and a conveying device, wherein a discharge port of the pre-filtering device is arranged above a feed port of the extruder, and the discharge port of the extruder is provided with the conveying device; the discharge gate of prefilter unit is equipped with filter screen and changes the device, the filter screen is changed the device and is included piston cylinder, support, a plurality of filter screen, the piston cylinder is fixed on prefilter unit, and the connection that the filter screen was dismantled is on the support, and the connection side by side of filter screen is on the support, and support fixed connection is at the flexible end of piston cylinder. The utility model has the advantages that: the filter screen can be replaced without stopping the processing equipment; and simultaneously, the utility model provides a prefilter, extruder, conveyer realize seamless, and production mechanization improves production efficiency through the setting.

Description

Denitration catalyst extrusion feeding device

Technical Field

The utility model relates to an extrude material feeding unit, what especially relate to is a material feeding unit is extruded to denitration catalyst.

Background

The main raw material of the honeycomb catalyst is titanium oxide TiO (commonly known as titanium dioxide), and related additives are added, wherein the cross section is generally 150 × 150mm, the length is about 1000mm to 1500mm, and honeycomb holes are generally square (with different numbers of holes);

the production process of the honeycomb denitration catalyst mainly comprises the following steps: 1) preparing a formula; 2) stirring the raw materials uniformly at a high speed; 3) fully filtering the wet material by using a pre-filtering extruder; 4) putting the filtered raw materials into a vacuum extruder to carry out extrusion molding on the product; 5) the automatic synchronous cutting machine can cut the extruded blank according to different size requirements; 6) the extruded product is placed into a carton by a manipulator, so that the extruded product is not deformed; 7) primary drying; 8) secondary drying; 9) firing in a mesh belt kiln; 10) cutting to length; 11) and (6) inspecting and packaging.

The existing production process has no continuity, and the production process needs to be transferred to the next process through a transfer mechanism after one process is finished, so that the efficiency is low.

The existing pre-filtering extruder is provided with a filter screen mounting hole, a worker can load a filter screen into a filter through the mounting hole, however, when the filter screen in the filter is blocked, the production needs to be stopped, the filter takes out the blocked filter screen from the mounting hole by the worker, and then a new filter screen is assembled, so that the production cannot be continuously carried out, and the production efficiency is reduced;

in addition, in the extrusion cutting process, because the denitration catalyst is softer, burr is easy to generate during cutting, although the fixed-size cutting is carried out in the later stage, if the deformation of the two cut ends is too large, the straightness of the whole denitration catalyst still cannot be guaranteed after the fixed-size cutting is easy to cause, and therefore, the generation of large deformation still needs to be avoided after extrusion.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: how to solve the inconvenient problem of filter screen change in current prefiltration process.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: the denitration catalyst extrusion feeding device comprises a pre-filtering device, an extruder and a conveying device, wherein a discharge port of the pre-filtering device is arranged above a feed port of the extruder, and the discharge port of the extruder is provided with the conveying device; the discharge gate of prefilter unit is equipped with filter screen and changes the device, the filter screen is changed the device and is included piston cylinder, support, a plurality of filter screen, the piston cylinder is fixed on prefilter unit, and the connection that the filter screen was dismantled is on the support, and the connection side by side of filter screen is on the support, and support fixed connection is at the flexible end of piston cylinder.

The utility model discloses a flexible of piston cylinder realizes taking out and impelling of filter screen, and during impel, the filter screen corresponds with prefilter's discharge gate, realizes filtering, and when the filter screen blockked up, the cylinder action can wait out the filter screen that is blockked up, changes new filter screen simultaneously, later unloads the filter screen that is blockked up, changes new filter screen, so as to be ready for next change, thereby need not to shut down the processing equipment and handle, can change the filter screen, also can change in reinforced clearance; and simultaneously, the utility model provides a prefilter, extruder, conveyer realize seamless, and production mechanization improves production efficiency through the setting.

Preferably, a double-screw extrusion mechanism for extrusion is arranged in the extruder.

Preferably, the conveying device comprises a first conveying device and a second conveying device which are sequentially arranged, a gap is formed between the first conveying device and the second conveying device, and the first conveying device starts from a discharge port of the extruder.

Preferably, a cutter device is arranged above the position between the first conveying device and the second conveying device. The cutter device realizes the cutting of the green body.

Preferably, the cutter device comprises a vertically arranged cylinder, a cutter and a support frame, the support frame spans over a gap between the first conveying device and the second conveying device, the cylinder is fixed on the support frame, and the cutter is fixedly arranged at the telescopic end of the cylinder.

Preferably, the cutter is a sheet structure, and the cutting tool face is perpendicular to the conveying direction of the denitration catalyst.

Preferably, the one end that the second conveyer is close to cutters is equipped with the registration roller support, swing joint registration roller on the registration roller support, and the registration roller support spanes in the top of second conveyer, and the registration roller is circular, and it is tangent with the upper surface of denitration catalyst, and tangential direction is parallel with denitration catalyst direction of transportation. The positioning roller has downward power in the cutting process, reduces the deformation that the cutter upwards moved in-process drove the denitration catalyst, simultaneously, can also carry out the roll-in to the edge after warping, revises, reduces whole deformation, improves the precision of article.

Preferably, the speed of the first transportation means is less than the speed of the second transportation means. In order to adapt to the slow extrusion speed, the second conveying device conveys the blanks to the next process after the cutting is finished, so that the speed is higher, and the blanks after the cutting can be spaced.

Preferably, the first conveying device and the second conveying device are both belt conveyors.

Preferably, the number of the filter screens is two.

The utility model has the advantages that:

(1) the utility model discloses a flexible of piston cylinder realizes taking out and impelling of filter screen, and during impel, the filter screen corresponds with prefilter's discharge gate, realizes filtering, and when the filter screen blockked up, the cylinder action can wait out the filter screen that is blockked up, changes new filter screen simultaneously, later unloads the filter screen that is blockked up, changes new filter screen, so as to be ready for next change, thereby need not to shut down the processing equipment and handle, can change the filter screen, also can change in reinforced clearance; meanwhile, the pre-filtering device, the extruder and the conveying device in the utility model are arranged, thereby realizing seamless connection, realizing mechanized production and improving the production efficiency;

(2) the positioning roller has downward power in the cutting process, reduces the deformation that the cutter upwards moved in-process drove the denitration catalyst, simultaneously, can also carry out the roll-in to the edge after warping, revises, reduces whole deformation, improves the precision of article.

Drawings

Fig. 1 is a schematic structural diagram of a denitration catalyst extrusion feeding device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a screen changer;

FIG. 3 is a schematic view of the screen changer after installation;

FIG. 4 is a schematic view of a screen changer replacement;

FIG. 5 is a schematic view of the structure of the prefilter unit and the extruder.

Reference numbers in the figures: prefilter 1, extruder 2, conveyer 3, first conveyer 31, second conveyer 32, filter screen replacing device 4, piston cylinder 41, support 42, filter screen 43, positioning roller 5, denitration catalyst 6.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 and fig. 2-4, the denitration catalyst extrusion feeding device comprises a pre-filtering device 1, an extruder 2 and a conveyer 3, wherein a discharge port of the pre-filtering device 1 is arranged above a feed port of the extruder 2, and the conveyer 3 is arranged at a discharge port of the extruder 2; a filter screen replacing device 4 is arranged at a discharge port of the pre-filtering device 1;

the filter screen replacing device 4 comprises a piston cylinder 41, a support 42 and a plurality of filter screens 43, the piston cylinder 41 is fixed on the pre-filtering device 1, the piston cylinder 41 can be fixed on the pre-filtering device 1 by arranging a support device, the filter screens 43 are detachably connected on the support 42, the filter screens 43 are connected on the support side by side, and the support 42 is fixedly connected with the telescopic end of the piston cylinder 41; as shown in fig. 3 and 4, the bracket 42 can horizontally reciprocate under the driving of the piston cylinder 41.

The utility model discloses a flexible realization filter screen 43 of piston cylinder 41 takes out and impels, when impelling, filter screen 43 corresponds with the discharge gate of prefilter unit 2, realize filtering, when filter screen 43 blockked up, the cylinder action can wait for the filter screen 43 that is blockked up out, change new filter screen 43 simultaneously, later will block up filter screen 43 lift off, change new filter screen 43, in order to change next time, thereby need not to shut down the processing equipment and handle, can change filter screen 43, also can change in reinforced clearance; and simultaneously, the utility model provides a prefilter 1, extruder 2, conveyer 3 realize seamless, and production mechanization improves production efficiency through the setting.

In this embodiment, there are two filter screens 43. As shown in fig. 3, the filter screen on the right side is in use, if a blockage occurs, as shown in fig. 4, the piston cylinder 41 acts, the filter screen on the left side moves to the discharge port to replace the filter screen which is blocked, at this time, the filter screen on the right side can be replaced by a new filter screen, and if the filter screen on the left side is blocked next time, the piston cylinder 41 acts, and then the new filter screen 43 on the right side is replaced.

Wherein, be equipped with the twin-screw extrusion mechanism that is used for extrudeing in extruder 2, rely on two screws to extrude the material, other mechanisms adopt among the prior art.

The conveying device 3 comprises a first conveying device 31 and a second conveying device 32 which are sequentially arranged, a gap is formed between the first conveying device 31 and the second conveying device 32, the first conveying device 31 starts from a discharge hole of the extruder 2 and conveys blanks extruded by the extruder 2 out, the speed of the first conveying device 31 is slow and is matched with the extruding speed, and the conveying speed of the second conveying device 32 is fast; in order to adapt to the slow extrusion speed, the second transport device 32 transports the blanks to the next process after the cutting, so that the speed is higher, and the blanks after cutting can be separated.

In this embodiment, the first transporting device 31 and the second transporting device 32 are both belt conveyors.

A cutter device 4 is arranged above the space between the first conveying device 31 and the second conveying device 32. The cutter device 4 realizes the cutting of the green body. The cutter device 4 comprises a vertically arranged air cylinder 42, a cutter 41 and a support frame, wherein the support frame can be a roughly inverted U-shaped support frame and is equivalent to a suspension mechanism, the support frame spans over a gap between the first transportation device 31 and the second transportation device 32, the air cylinder is fixed on the support frame, and the cutter 41 is fixedly arranged at the telescopic end of the air cylinder. The cutting knife 41 is of a sheet structure, and the cutting knife surface is perpendicular to the conveying direction of the denitration catalyst; the telescopic end of the air cylinder 42 drives the cutter to move downwards to realize cutting;

example two:

as shown in fig. 1, the difference from the first embodiment is that a positioning roller support is further disposed at one end of the second transportation device 32 close to the cutter device, the positioning roller support is movably connected to the positioning roller support, the positioning roller support spans over the second transportation device 32, the positioning roller 5 is cylindrical, two ends of the positioning roller support can rotate on the positioning roller support through a rotating shaft, the two ends of the positioning roller support are tangent to the upper surface of the denitration catalyst 6, and the tangential direction of the positioning roller support is parallel to the transportation direction of the denitration catalyst 6.

The positioning roller 5 has downward force in the cutting process, reduces the deformation of the denitration catalyst driven by the cutter in the upward movement process, and meanwhile, the deformed edge can be rolled for correction, so that the overall deformation is reduced, and the precision of the object is improved.

In addition, a positioning roller can also be arranged at the tail end of the first conveying device 31 in the same way as above, and the two positioning rollers are used together, so that the two ends of the denitration catalyst can be corrected when being cut.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The denitration catalyst extrusion feeding device is characterized by comprising a pre-filtering device, an extruder and a conveying device, wherein a discharge port of the pre-filtering device is arranged above a feed port of the extruder; the discharge gate of prefilter unit is equipped with filter screen and changes the device, the filter screen is changed the device and is included piston cylinder, support, a plurality of filter screen, the piston cylinder is fixed on prefilter unit, and the connection that the filter screen was dismantled is on the support, and the connection side by side of filter screen is on the support, and support fixed connection is at the flexible end of piston cylinder.

2. The denitration catalyst extrusion feeding device of claim 1, wherein a twin-screw extrusion mechanism for extrusion is provided in the extruder.

3. The denitration catalyst extrusion feeding device of claim 1, wherein the transportation device comprises a first transportation device and a second transportation device which are arranged in sequence, a gap is arranged between the first transportation device and the second transportation device, and the first transportation device is started from a discharge port of the extruder.

4. The denitration catalyst extrusion feeding device of claim 3, wherein a cutter device is arranged above the first conveying device and the second conveying device.

5. The denitration catalyst extrusion feeding device of claim 4, wherein the cutter device comprises a vertically arranged cylinder, a cutter and a support frame, the support frame spans over a gap between the first conveying device and the second conveying device, the cylinder is fixed on the support frame, and the cutter is fixedly arranged at a telescopic end of the cylinder.

6. The denitration catalyst extrusion feeding device of claim 5, wherein the cutter is of a sheet structure, and a cutter surface is perpendicular to the conveying direction of the denitration catalyst.

7. The denitration catalyst extrusion feeding device of claim 4, wherein a positioning roller support is arranged at one end of the second conveying device close to the cutter device, the positioning roller support is movably connected with a positioning roller, the positioning roller support spans above the second conveying device, the positioning roller is circular and tangent to the upper surface of the denitration catalyst, and the tangent direction is parallel to the conveying direction of the denitration catalyst.

8. The denitration catalyst extrusion feeding device according to claim 3, wherein the speed of the first transportation device is smaller than the speed of the second transportation device.

9. The denitration catalyst extrusion feeding device of claim 1, wherein the first conveying device and the second conveying device are both belt conveyors.

10. The denitration catalyst extrusion feeding device of claim 1, wherein the number of the filter screens is two.

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