CN214920511U

CN214920511U - Movable 3D prints secondary filtration system

Info

Publication number: CN214920511U
Application number: CN202120859743.XU
Authority: CN
Inventors: 周宏志; 梁银生
Original assignee: Suzhou Zhongrui Zhichuang 3d Technology Co ltd
Current assignee: Suzhou Zhongrui Zhichuang 3d Technology Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-30
Anticipated expiration: 2031-04-25

Abstract

The invention provides a movable 3D printing secondary filtering system, which is characterized in that a 3D printer is arranged and connected with a primary filtering device, waste gas discharged by the 3D printer is purified into primary clean gas through the primary filtering device, the movable 3D printing secondary filtering system is characterized in that an exhaust port of the primary filtering device is connected with a secondary filtering device, the primary clean gas is further purified into secondary clean gas through the secondary filtering device, the secondary filtering device comprises a plurality of filter cylinders connected in parallel, an exhaust port of the primary filtering device is detachably connected with air inlets of the filter cylinders through an air pipe assembly, and a movable base is arranged at the bottom of the filter cylinders. Compared with the prior art, the movable filter cylinder is provided for the filter system, and the filter cylinder is moved in the printing process, so that the filter cylinder with greatly reduced filtering effect can be replaced in time, and the stability of the filtering effect of the whole filter system is guaranteed.

Description

Movable 3D prints secondary filtration system

Technical Field

The invention relates to 3D printing, in particular to a movable 3D printing secondary filtering system.

Background

The 3D printing technology is a new fast forming technology at present, and is a technology for constructing an object by using materials such as powder, silk, paste and the like in a layer-by-layer printing manner on the basis of a digital model file.

Produced waste gas of metal 3D printer need filter through filtration system, and the filtration system of current metal 3D printer all can't remove in the use, and the change that can't be timely when certain filtering component among the filtration system breaks down, and then can influence the filter effect.

Disclosure of Invention

In view of this, the invention provides a movable 3D printing secondary filtering system, which provides a movable filter cartridge for a filtering system compared with the prior art, and realizes that the filter cartridge is moved in the printing process, so that the filter cartridge with a greatly reduced filtering effect can be replaced in time, and the stability of the filtering effect of the whole filtering system is ensured.

Therefore, the invention provides a movable 3D printing secondary filtering system, which is characterized in that a 3D printer is arranged and connected with a primary filtering device, waste gas discharged by the 3D printer is purified into primary clean gas through the primary filtering device, the movable 3D printing secondary filtering system is characterized in that an exhaust port of the primary filtering device is connected with a secondary filtering device, the primary clean gas is further purified into secondary clean gas through the secondary filtering device, the secondary filtering device comprises a plurality of filter cylinders which are connected in parallel, the exhaust port of the primary filtering device is detachably connected with air inlets of the plurality of filter cylinders through an air pipe assembly, and a movable base is arranged at the bottom of each filter cylinder.

Further, the internally mounted who strains a section of thick bamboo has the filter core, the filter core is including the filter layer that has the filtration pore with be located the filter layer is outside treat the clean region of purification region with be located the inside clean region of filter layer, strain the top of a section of thick bamboo and install blowback mechanism, blowback mechanism includes blowback admission valve, blowback air outlet valve and air pump, the blowback admission valve communicate in clean region, the blowback air outlet valve communicate in clean region or treat the clean region, the air pump install in the inlet end of blowback admission valve.

Further, the top of the filter cylinder is also provided with an air pressure monitoring device.

Further, the air pressure monitoring equipment is a pressure sensor, and the detection end of the pressure sensor extends to the clean area.

Further, the air pressure monitoring equipment is a differential pressure sensor, a first detection end of the differential pressure sensor extends to the area to be purified, and a second detection end of the differential pressure sensor extends to the clean area.

Further, a waste material barrel is arranged right below the filter cylinder.

Furthermore, a waste outlet is formed in the bottom of the filter cylinder, a waste inlet connected with the waste outlet is formed in the top of the waste barrel, and a stop valve is arranged at the joint of the waste outlet and the waste inlet.

Furthermore, the top of the filter cylinder is provided with a water injection port.

Further, a pressure relief valve is mounted at the top of the filter cartridge.

Furthermore, the top of the filter cylinder is provided with an air inlet communicated with the area to be purified and an air outlet communicated with the clean area, the air inlet is provided with a working air inlet valve, and the air outlet is provided with a working air outlet valve.

The invention provides a movable 3D printing secondary filtering system which is provided with a 3D printer, a primary filtering device and a secondary filtering device.

Therefore, compared with the prior art, the movable filter cylinder is provided for the filter system, and the filter cylinder is moved in the printing process, so that the filter cylinder with greatly reduced filtering effect can be replaced in time, and the stability of the filtering effect of the whole filter system is guaranteed.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural diagram of a movable 3D printing secondary filtering system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a movable 3D printing secondary filtering system according to an embodiment of the present invention;

fig. 3 is a top view of fig. 1.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The first embodiment is as follows:

referring to fig. 1 to 3, the embodiment provides a movable 3D prints secondary filtration system, the 3D printer has been set up at first, its exhaust waste gas purifies into one-level clean gas through one-level filter equipment, one-level filter equipment's gas vent is connected with secondary filter equipment, one-level clean gas further purifies into secondary clean gas through secondary filter equipment back, secondary filter equipment includes a plurality of sections of straining of taking over 1, one-level filter equipment's gas vent passes through the tuber pipe subassembly simultaneously detachably and connects in a plurality of air intakes of straining a section of thick bamboo 1, it installs removal base 2 to strain the bottom of a section of thick bamboo 1.

With continued reference to fig. 1 to 3, a filter element 3 is installed inside the filter cartridge 1, the filter element 3 includes a filter layer with filter holes, a to-be-purified area 31 located outside the filter layer, and a clean area 32 located inside the filter layer, a back-blowing mechanism is installed at the top of the filter cartridge 1, the back-blowing mechanism includes a back-blowing air inlet valve 41, a back-blowing air outlet valve 42, and an air pump, the back-blowing air inlet valve 41 is communicated with the clean area 32, the back-blowing air outlet valve 42 is communicated with the clean area 32 or the to-be-purified area 31, and the air pump is installed at an air inlet end of the back-blowing air inlet valve 41.

With continued reference to fig. 1 to 3, a waste material barrel 21 is installed right below the filter cartridge 1, a waste material outlet is formed in the bottom of the filter cartridge 1, a waste material inlet connected with the waste material outlet is formed in the top of the waste material barrel 21, a stop valve 5 is installed at the joint of the waste material outlet and the waste material inlet, an air inlet communicated with the area to be purified 31 and an air outlet communicated with the clean area 32 are formed in the top of the filter cartridge 1, a working air inlet valve 11 is installed at the air inlet, and a working air outlet valve 12 is installed at the air outlet.

Compared with the existing filtering device, the filtering device has great advantages, and the advantages are derived from the assembly flexibility of the secondary filtering device, namely the number and the positions of the filter cylinders forming the secondary filtering device can be flexibly changed, the increase of the number is favorable for prolonging the service life of the filter element, and the flexible change of the positions of the filter cylinders improves the compatibility of the filtering device to the installation terrain.

Generally, the greater the number of cartridges, the slower the rate of depletion of a single cartridge, i.e., the longer the filter life can be. As will be explained in a comparative manner with respect to the technical means and technical effects of the above-mentioned prior art, the number of filter cartridges of the filtering apparatus in the prior art cannot be changed, and when the rate of exhaust gas generation is too high, the loss speed of a single filter cartridge (specifically, a filter element) rises linearly, which is caused by the limited filtering capability of a single filter cartridge, and when the rate of exhaust gas generation exceeds the upper limit of the filtering capability, the loss speed also rises greatly, and the motor similar to the overload running motor is damaged quickly; the secondary filter device of the present invention solves the above problems by increasing the number of filter cartridges in the filter device when the filter device is used in a 3D printer having a greater exhaust gas generation rate.

The top of straining a section of thick bamboo installs the blowback mechanism, and the blowback mechanism includes blowback admission valve, blowback air outlet valve and air pump (the air pump is current equipment, and its mounting method is conventional means too, therefore does not show in the drawing), and the blowback admission valve communicates in clean area, and the air pump is installed in the inlet end of blowback admission valve, starts the air pump after printing and carries out the blowback clearance to the filter core, takes out the smoke and dust that blowback falls from the waste material bucket (waste material bucket installs in removing the base, see figure 1) of bottom, has improved the cleaning efficiency of smoke and dust.

The top of straining a section of thick bamboo is seted up the water filling port, need change the filter core and to injecting water in the water filling port, take out after straining a section of thick bamboo infiltration, avoid the filter core spontaneous combustion.

Therefore, compared with the prior art, the invention has the following advantages:

1. the filter cartridge is moved in the printing process, so that the filter cartridge with greatly reduced filtering effect can be replaced in time, and the stability of the filtering effect of the whole filtering system is guaranteed;

2. the service life of the filter element is prolonged;

3. after printing is finished, back flushing can be carried out, and the back-blown smoke dust is taken out from the waste material barrel at the bottom, so that the smoke dust cleaning efficiency is improved;

4. after the active metal is printed, water can be injected for humidification, and spontaneous combustion of the filter element is avoided.

Example two:

referring to fig. 1 to fig. 3, a movable 3D printing secondary filtering system according to a second embodiment of the present invention is shown, and the present embodiment further adopts the following as an improved technical solution on the basis of the above embodiments: the top of the filter cartridge is also provided with an air pressure monitoring device (the air pressure monitoring device is the existing device, the installation method is also a conventional means, and therefore the air pressure monitoring device is not shown in the attached drawing), the air pressure monitoring device can be a pressure sensor or a pressure difference sensor, when the air pressure monitoring device monitors the air pressure change in the filter element, the situation that the filter holes on the surface of the filter element are blocked is shown, at the moment, the air pump is started, the air pump is used for inflating air into a clean area, and the backflushing air can flush away particles blocked on the filter holes, so that the filtering efficiency of the filter element is guaranteed.

Example three:

referring to fig. 1 to fig. 3, a movable 3D printing secondary filter system according to a third embodiment of the present invention is shown, and the present embodiment further adopts the following as an improved technical solution on the basis of the above embodiments: in the second embodiment, if all or most of the blowback mechanisms at the tops of the filter cartridges are simultaneously activated, a large reduction in filtration efficiency occurs in a short time, and in order to avoid the above-mentioned adverse effects, a limit is imposed on the number of the backflushing apparatus bodies that are simultaneously activated, specifically, the upper limit of the number of the backflushing apparatus bodies that can be simultaneously activated cannot exceed 20% of the total number of filter cartridges (rounded down when there is a decimal point).

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a movable 3D prints secondary filtration system, 3D printer are connected with primary filter equipment, 3D printer exhaust waste gas process primary filter equipment purifies to the clean gas of one-level, its characterized in that, primary filter equipment's gas vent is connected with secondary filter equipment, the clean gas process of one-level further purify to the clean gas of secondary behind the secondary filter equipment, secondary filter equipment includes a plurality of filter cartridge (1) that connect, primary filter equipment's gas vent pass through tuber pipe subassembly detachably connect in a plurality of air intakes of straining cartridge (1) simultaneously, it installs removal base (2) to strain the bottom of cartridge (1).

2. The movable 3D printing secondary filter system according to claim 1, wherein a filter element (3) is installed inside the filter cartridge (1), the filter element (3) comprises a filter layer with filter holes, a to-be-purified area (31) located outside the filter layer, and a clean area (32) located inside the filter layer, a back-blowing mechanism is installed at the top of the filter cartridge (1), the back-blowing mechanism comprises a back-blowing air inlet valve (41), a back-blowing air outlet valve (42), and an air pump, the back-blowing air inlet valve (41) is communicated with the clean area (32), the back-blowing air outlet valve (42) is communicated with the clean area (32) or the to-be-purified area (31), and the air pump is installed at an air inlet end of the back-blowing air inlet valve (41).

3. A mobile 3D printing secondary filter system according to claim 2, characterized in that the top of the filter cartridge (1) is also fitted with air pressure monitoring equipment.

4. A mobile 3D printing secondary filter system according to claim 3, characterized in that the air pressure monitoring device is a pressure sensor, the detection end of which extends to the clean area (32).

5. A mobile 3D printing secondary filter system according to claim 3, characterized in that the air pressure monitoring device is a differential pressure sensor, a first detection end of the differential pressure sensor extends to the area to be cleaned (31) and a second detection end of the differential pressure sensor extends to the clean area (32).

6. Mobile 3D printing secondary filter system according to any of claims 2-5, characterized in that a waste basket (21) is installed just below the filter cartridge (1).

7. The movable 3D printing secondary filtering system as claimed in claim 6, wherein the bottom of the filter cartridge (1) is opened with a waste outlet, the top of the waste barrel (21) is opened with a waste inlet connected with the waste outlet, and a stop valve (5) is installed at the connection of the waste outlet and the waste inlet.

8. A mobile 3D printing secondary filtration system as claimed in claim 1, characterized in that the top of the filter cartridge (1) is provided with a water injection port.

9. A mobile 3D printing secondary filtration system as claimed in claim 1, characterized in that a pressure relief valve is installed at the top of the filter cartridge (1).

10. The movable 3D printing secondary filtering system as claimed in claim 2, wherein an air inlet communicated with the area to be purified (31) and an air outlet communicated with the cleaning area (32) are formed in the top of the filter cartridge (1), the air inlet is provided with a working air inlet valve (11), and the air outlet is provided with a working air outlet valve (12).