Dust remover for circularly purifying inert gas and keeping concentration of inert gas

Abstract

The utility model relates to the technical field of dust removers, and provides a dust remover for circulating and purifying inert gas and keeping the concentration of the inert gas, which comprises a case shell, the case shell is provided with a dust removal cavity and an installation space, the installation space is provided with a first inlet, a first outlet and a second outlet, and a fan assembly is arranged in the installation space. One end of the air inlet pipe is communicated with the air inlet, the other end of the air inlet pipe is communicated with the dust removal cavity, one end of the air outlet pipe is communicated with the air outlet, the other end of the air outlet pipe is communicated with the first outlet, the cyclone dust collector is arranged between the first inlet and the dust removal cavity, one end of the tail gas treatment pipe is communicated with the second outlet, and the other end of the tail gas treatment pipe is communicated with the air outlet pipe; and pneumatic valves are arranged on the cyclone dust collector, the air outlet pipe and the tail gas treatment pipe. According to the technical scheme, the problem that in the prior art, the concentration of inert gas in the 3D printer can be affected after a dust remover is maintained for dust removal of the 3D printer is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust collectors, and in particular to a dust collector used for circulating and purifying inert gas and maintaining the concentration of the inert gas. Background Art

[0002] The equipment that separates dust from flue gas is called a dust collector or dust removal equipment. The performance of a dust collector is expressed by the amount of gas that can be processed, the resistance loss when the gas passes through the dust collector, and the dust removal efficiency. At the same time, the price, operation and maintenance costs, service life, and ease of operation and management of the dust collector are also important factors to consider its performance. Dust collectors are commonly used facilities in industrial production. During use, the interior of a 3D metal powder printer needs to be filled with inert gas to prevent oxygen from affecting the printing effect. During the printing process, there is a lot of dust in the internal space, which needs to be removed. However, when the dust collector is repaired and dusted again, oxygen will be mixed into the inert gas, affecting the concentration of the inert gas. Utility Model Content

[0003] The utility model provides a dust collector for circulating and purifying inert gas and maintaining its concentration, which solves the technical problem in the related art that a 3D printer using a dust collector for dust removal may affect the inert gas concentration inside the 3D printer after the dust collector is repaired.

[0004] The technical solution of the utility model is as follows:

[0005] A dust collector for circulating and purifying inert gas and maintaining its concentration, comprising:

[0006] A chassis shell, the chassis shell having a dust removal chamber and an installation space, the installation space having a first inlet, a first outlet, and a second outlet,

[0007] A fan assembly, wherein the fan assembly is arranged in the installation space, and the fan assembly has an air outlet and an air inlet,

[0008] An air inlet pipe, one end of which is connected to the air inlet, and the other end of which is connected to the dust removal chamber,

[0009] an air outlet pipe, one end of which is connected to the air outlet, and the other end of which is connected to the first outlet,

[0010] A cyclone dust collector, a cyclone dust collector, wherein one end of the cyclone dust collector is connected to the first inlet, and the other end is connected to the dust removal chamber,

[0011] an exhaust gas treatment pipe, one end of which is connected to the second outlet and the other end of which is connected to the air outlet pipe,

[0012] A pneumatic valve is provided on the cyclone dust collector, the air outlet pipe and the exhaust gas treatment pipe. The exhaust gas treatment pipe is provided between the pneumatic valve provided on the air outlet pipe and the air outlet.

[0013] As a further technical solution, the cyclone dust collector has a dust inlet and also includes

[0014] A powder feeder is connected to the dust inlet.

[0015] As a further technical solution, it also includes

[0016] A first dust removal component, the first dust removal component is arranged in the dust removal chamber, and the first dust removal component has a filter hole and an exhaust hole,

[0017] The second dust removal component is arranged in the dust removal chamber, and the second dust removal component has a dust removal inlet and a dust removal outlet, the dust removal inlet is connected to the exhaust hole, and the dust removal outlet is connected to the air inlet pipe.

[0018] As a further technical solution, it also includes

[0019] A cooling box, wherein the cooling box is arranged on the air outlet pipe,

[0020] An exhaust gas treatment box is arranged on the exhaust gas treatment pipe.

[0021] As a further technical solution, the cyclone dust collector has a first dust outlet, the dust removal chamber has a second dust outlet, and further includes

[0022] a first material collecting box, the first material collecting box is connected to the first dust outlet, the first dust outlet has a first valve body,

[0023] The second material collecting box is communicated with the second dust outlet, and the second dust outlet has a second valve body.

[0024] As a further technical solution, the bottom of the dust removal chamber has a material collection portion, the material collection portion gradually closes from top to bottom, and the material collection portion is connected to the second valve body.

[0025] As a further technical solution, it also includes

[0026] A blowing assembly is arranged at the top of the installation space.

[0027] As a further technical solution, the blowing assembly includes

[0028] an accumulator, the accumulator being arranged at the top of the installation space,

[0029] A blowing pipe is connected to the accumulator, the blowing pipe extends into the dust removal chamber, and the blowing pipe has a blowing hole, and the blowing hole faces the first dust removal component.

[0030] As a further technical solution, the cooling box is a water cooling box.

[0031] As a further technical solution, the gas introduced into the accumulator is an inert gas.

[0032] The working principle and beneficial effects of the utility model are:

[0033] The utility model designs a cyclone dust collector to reduce the speed of the inert gas with dust entering the first inlet by changing the diameter of the tube cavity of the cyclone dust collector, thereby realizing preliminary dust removal. The inert gas after preliminary dust removal enters the dust removal chamber. The gas in the dust removal chamber flows from the dust removal chamber through the air inlet pipe into the air inlet of the fan under the action of the fan assembly. After entering the air inlet, the gas flows out of the first outlet through the air outlet pipe under the action of the fan assembly. When the dust collector used for circulating and purifying the inert gas and maintaining its concentration is repaired or maintained, the oxygen content in the dust removal chamber for inert gas dust removal in the dust collector used for circulating and purifying the inert gas and maintaining its concentration increases. In order to prevent oxygen from entering the 3D printer and affecting the printing effect, a pneumatic valve and an exhaust gas treatment pipe are also designed. When the dust collector used for circulating and purifying the inert gas and maintaining its concentration is used When the dust collector is repaired, the pneumatic valves on the cyclone dust collector and the air outlet pipe are closed, and the oxygen content of the gas in the dust collector used for circulating and purifying the inert gas and maintaining its concentration increases. After the maintenance is completed, the pneumatic valves on the tail gas treatment pipe and the cyclone dust collector are opened, and the pneumatic valve on the air outlet pipe remains closed. The inert gas enters the dust collector from the inlet and flows. After flowing to the air outlet pipe, the pneumatic valve of the air outlet pipe is closed, and the oxygen-containing gas is discharged from the second outlet along the tail gas treatment pipe until the oxygen content in the dust collector used for circulating and purifying the inert gas and maintaining its concentration drops to the standard value. The pneumatic valve on the oxygen treatment pipe is closed, and the pneumatic valve on the air outlet pipe is opened to circulate the inert gas in the 3D printer for dust removal. The structure is simple and easy to maintain, which can effectively improve the printing effect of the 3D printer after the dust collector is repaired. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0035] Figure 1 It is a schematic diagram of the structure of the utility model;

[0036] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0037] Figure 3 This is a schematic diagram of the internal structure of the utility model from another perspective;

[0038] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;

[0039] In the figure: chassis shell-1, dust removal chamber-101, installation space-102, first inlet-103, first outlet-104, second outlet-105, second dust outlet-106, second valve body-107, collection part-108, fan assembly-2, air outlet-201, air inlet-202, air inlet pipe-3, air outlet pipe-4, cyclone dust collector-5, dust inlet-501, exhaust gas treatment pipe- 6, pneumatic valve-7, powder feeder-8, first dust removal component-9, exhaust hole-901, second dust removal component-10, dust removal inlet-1001, dust removal outlet-1002, cooling box-11, tail gas treatment box-12, first dust outlet-502, first aggregate box-13, first valve body-503, second aggregate box-14, blowing component-15, accumulator-1501, blowing pipe-1502. DETAILED DESCRIPTION

[0040] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] like Figure 1~Figure 4 As shown, this embodiment proposes a dust collector for circulating and purifying inert gas and maintaining its concentration, including a chassis shell 1, the chassis shell 1 has a dust removal chamber 101 and an installation space 102, the installation space 102 has a first inlet 103, a first outlet 104 and a second outlet 105, a fan assembly 2, the fan assembly 2 is arranged in the installation space 102, the fan assembly 2 has an air outlet 201 and an air inlet 202, an air inlet pipe 3, one end of the air inlet pipe 3 is connected to the air inlet 202, and the other end is connected to the dust removal chamber 101, and the outlet Air duct 4, one end of the air outlet duct 4 is connected to the air outlet 201, and the other end is connected to the first outlet 104, cyclone dust collector 5, one end of the cyclone dust collector 5 is connected to the first inlet 103, and the other end is connected to the dust removal chamber 101, exhaust gas treatment pipe 6, one end of the exhaust gas treatment pipe 6 is connected to the second outlet 105, and the other end is connected to the air outlet duct 4, pneumatic valve 7, the cyclone dust collector 5, the air outlet duct 4 and the exhaust gas treatment pipe 6 are all provided with pneumatic valve 7, and the exhaust gas treatment pipe 6 is arranged between the pneumatic valve 7 arranged on the air outlet duct 4 and the air outlet 201.

[0042] The present embodiment designs a cyclone dust collector 5 to reduce the speed of the inert gas with dust entering the first inlet 103 by changing the diameter of the tube cavity of the cyclone dust collector 5, thereby achieving preliminary dust removal. The inert gas after preliminary dust removal enters the dust removal chamber 101. The gas in the dust removal chamber 101 flows from the dust removal chamber 101 through the air inlet pipe 3 and enters the air inlet 202 of the fan under the action of the fan assembly 2. After entering the air inlet 202, the gas flows out of the first outlet 104 through the air outlet 201 through the air outlet pipe 4 under the action of the fan assembly 2. After the dust collector for circulating and purifying the inert gas and maintaining its concentration is repaired or maintained, the oxygen content in the dust removal chamber 101 for inert gas dust removal in the dust collector for circulating and purifying the inert gas and maintaining its concentration increases. In order to prevent oxygen from entering the 3D printer and affecting the printing effect, a pneumatic valve 7 and an exhaust gas treatment pipe 6 are also designed. When used for the circulation of inert gas When the dust collector for purifying and maintaining its concentration is repaired, the pneumatic valve 7 on the cyclone dust collector 5 and the air outlet pipe 4 is closed, and the oxygen content of the gas in the dust collector for purifying and maintaining its concentration by circulating inert gas increases. After the maintenance is completed, the pneumatic valve 7 on the tail gas treatment pipe 6 and the cyclone dust collector 5 is opened, and the pneumatic valve 7 on the air outlet pipe 4 remains closed. The inert gas enters the dust collector from the inlet and flows. After flowing to the air outlet pipe 4, the pneumatic valve 7 of the air outlet pipe 4 is closed, and the oxygen-containing gas is discharged from the second outlet 105 along the tail gas treatment pipe 6 until the oxygen content in the dust collector for purifying and maintaining its concentration by circulating inert gas is reduced to the standard value. The pneumatic valve 7 on the oxygen treatment pipe is closed, and the pneumatic valve 7 on the air outlet pipe 4 is opened, so as to circulate and remove dust for the inert gas in the 3D printer. The structure is simple and easy to maintain, and the printing effect of the 3D printer after the dust collector is repaired can be effectively improved.

[0043] Furthermore, the cyclone dust collector 5 has a dust inlet 501, and also includes a powder feeder 8, which is connected to the dust inlet 501. In this embodiment, considering that the powder generated in the 3D printer is explosive powder, in order to avoid possible explosion risks, a powder feeder 8 is also designed to add stabilizing dust to the cyclone dust collector 5, so as to improve the stability of the dust collected by the dust removal equipment, thereby reducing the possibility of dust explosion.

[0044] Furthermore, it also includes a first dust removal component 9, which is arranged in the dust removal chamber 101 and has filter holes and exhaust holes 901, and a second dust removal component 10, which is arranged in the dust removal chamber 101 and has a dust removal inlet 1001 and a dust removal outlet 1002, the dust removal inlet 1001 is connected to the exhaust hole 901, and the dust removal outlet 1002 is connected to the air intake pipe 3.

[0045] In this embodiment, a first dust removal component 9 is designed for performing secondary dust removal on the inert gas after the cyclone dust collector has removed the dust, and a second dust removal component 10 is designed for performing third dust removal on the gas after the secondary dust removal. Compared with the dust collector in the prior art, the dust treatment effect of the inert gas after the cyclone dust collector, the first dust removal component 9 and the second dust removal component 10 is better. The multiple dust removal methods extend the service life of the first dust removal component 9 and the second dust removal component 10 and reduce the failure rate of the equipment.

[0046] Furthermore, it also includes a cooling box 11, which is arranged on the air outlet pipe 4, and an exhaust gas treatment box 12, which is arranged on the exhaust gas treatment pipe 6. In this embodiment, in order to prevent the temperature of the inert gas treated by the dust collector for circulating and purifying the inert gas and maintaining its concentration from affecting the printing effect of the 3D printer, a cooling box 11 is also designed to cool the gas in the air outlet pipe 4, and in order to prevent the external environment from being polluted when the oxygen-containing gas is discharged, an exhaust gas treatment box 12 is also designed to treat the oxygen-containing gas.

[0047] Furthermore, the cyclone dust collector 5 has a first dust outlet 502, the dust removal chamber 101 has a second dust outlet 106, and also includes a first collecting box 13, the first collecting box 13 is connected to the first dust outlet 502, the first dust outlet 502 has a first valve body 503, and a second collecting box 14, the second collecting box 14 is connected to the second dust outlet 106, and the second dust outlet 106 has a second valve body 107.

[0048] In this embodiment, a first collecting box 13 and a second collecting box 14 are designed to collect dust in the inert gas, wherein the first valve body 503 is used to control the connection and closing of the cyclone dust collector 5 and the first collecting box 13, and the second valve body 107 is used to control the connection and closing of the dust removal chamber 101 and the second collecting box 14. The first collecting box 13 and the second collecting box 14 are convenient for the operator to collect and clean the dust.

[0049] Furthermore, the dust removal chamber 101 has a material collecting portion 108 at the bottom, which gradually closes from top to bottom and is connected to the second valve body 107. In this embodiment, in order to facilitate the collection of dust in the dust removal chamber 101, a material collecting portion 108 is designed to allow the dust to slide down in an orderly manner. The material collecting portion 108 avoids the dust from being scattered during the dust collection process, thereby reducing the labor intensity of the operator.

[0050] Furthermore, a blowing assembly 15 is also included, and the blowing assembly 15 is arranged at the top of the installation space 102. In this embodiment, the blowing assembly 15 is designed to blow the first dust removal assembly 9 to extend the service life of the first blowing assembly 15.

[0051] Furthermore, the blowing assembly 15 includes an accumulator 1501, which is arranged at the top of the installation space 102, and a blowing pipe 1502, which is connected to the accumulator 1501 and extends into the dust removal chamber 101. The blowing pipe 1502 has a blowing hole, and the blowing hole faces the first dust removal assembly 9.

[0052] In this embodiment, the spray assembly includes an accumulator 1501 and a blow pipe 1502. The accumulator 1501 is arranged in the installation space 102. The blow pipe 1502 is connected to the accumulator 1501 and has a plurality of blow holes. The blow holes face the first dust removal assembly 9. Compared with the prior art, the accumulator 1501 and the blow pipe 1502 are both arranged in the installation space 102, the connection distance is shortened, and a two-way quick-connect connector can be used for connection. Compared with the air pipe connection of the prior conventional technology, the connection points are reduced, the possibility of gas leakage is reduced, and maintenance is facilitated.

[0053] Furthermore, the cooling box 11 is a water cooling box. In this embodiment, the cooling box 11 is designed as a water cooling box, which has a simple structure and is easy to maintain.

[0054] Further, the gas introduced into the accumulator 1501 is an inert gas. In this embodiment, the gas introduced into the accumulator 1501 is an inert gas to avoid the change of the inert gas concentration of the dust collector used for circulating and purifying the inert gas and maintaining its concentration due to the gas ejected by the blowing assembly 15.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust collector for circulating and purifying inert gas and maintaining its concentration, characterized in that: include A chassis shell (1), the chassis shell (1) having a dust removal chamber (101) and an installation space (102), the installation space (102) having a first inlet (103), a first outlet (104) and a second outlet (105), A fan assembly (2), the fan assembly (2) being arranged in the installation space (102), the fan assembly (2) having an air outlet (201) and an air inlet (202), an air inlet pipe (3), one end of the air inlet pipe (3) being in communication with the air inlet port (202), and the other end of the air inlet pipe (3) being in communication with the dust removal chamber (101), an air outlet pipe (4), one end of the air outlet pipe (4) being connected to the air outlet (201), and the other end of the air outlet pipe (4) being connected to the first outlet (104), a cyclone dust collector (5), wherein one end of the cyclone dust collector (5) is connected to the first inlet (103), and the other end of the cyclone dust collector (5) is connected to the dust removal chamber (101). an exhaust gas treatment pipe (6), one end of the exhaust gas treatment pipe (6) being connected to the second outlet (105), and the other end of the exhaust gas treatment pipe (6) being connected to the air outlet pipe (4), A pneumatic valve (7), wherein the cyclone dust collector (5), the air outlet pipe (4) and the exhaust gas treatment pipe (6) are all provided with the pneumatic valve (7), and the exhaust gas treatment pipe (6) is provided between the pneumatic valve (7) provided on the air outlet pipe (4) and the air outlet (201).

2. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 1, characterized in that: The cyclone dust collector (5) has a dust inlet (501) and also includes A powder feeder (8), the powder feeder (8) being in communication with the dust inlet (501).

3. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 1, characterized in that: Also includes a first dust removal component (9), the first dust removal component (9) being arranged in the dust removal chamber (101), the first dust removal component (9) having a filter hole and an exhaust hole (901), A second dust removal component (10), the second dust removal component (10) is arranged in the dust removal chamber (101), the second dust removal component (10) has a dust removal inlet (1001) and a dust removal outlet (1002), the dust removal inlet (1001) is connected to the exhaust hole (901), and the dust removal outlet (1002) is connected to the air inlet pipe (3).

4. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 1, characterized in that: Also includes a cooling box (11), wherein the cooling box (11) is arranged on the air outlet pipe (4), An exhaust gas treatment box (12), wherein the exhaust gas treatment box (12) is arranged on the exhaust gas treatment pipe (6).

5. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 1, characterized in that: The cyclone dust collector (5) has a first dust outlet (502), the dust removal chamber (101) has a second dust outlet (106), and further comprises a first material collecting box (13), the first material collecting box (13) being in communication with the first dust outlet (502), the first dust outlet (502) having a first valve body (503), A second material collecting box (14), wherein the second material collecting box (14) is in communication with the second dust outlet (106), and the second dust outlet (106) has a second valve body (107).

6. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 5, characterized in that: The dust removal chamber (101) has a material collecting portion (108) at the bottom, the material collecting portion (108) gradually closes from top to bottom, and the material collecting portion (108) is connected to the second valve body (107).

7. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 3, characterized in that: Also includes A blowing assembly (15), wherein the blowing assembly (15) is arranged at the top of the installation space (102).

8. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 7, characterized in that: The blowing assembly (15) comprises an accumulator (1501), the accumulator (1501) being arranged at the top of the installation space (102), A blowing pipe (1502), the blowing pipe (1502) being connected to the accumulator (1501), the blowing pipe (1502) extending into the dust removal chamber (101), the blowing pipe (1502) having a blowing hole, the blowing hole facing the first dust removal assembly (9).

9. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 4, characterized in that: The cooling box (11) is a water cooling box.

10. A dust collector for circulating and purifying inert gas and maintaining its concentration according to claim 8, characterized in that: The gas introduced into the accumulator (1501) is an inert gas.

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