Nitrogen tail gas recycling device for squat silo

Abstract

The utility model relates to the technical field of nitrogen tail gas recycling, in particular to a squat silo nitrogen tail gas recycling device which comprises a base, a first fixing seat and a second fixing seat, the bottom of the first fixing seat and the bottom of the second fixing seat are both fixedly connected with the bottom of the base, and the second fixing seat is close to one side of the first fixing seat. The top of the first fixing seat is detachably connected with a fixing sleeve through a mounting screw, the inner side of the fixing sleeve is fixedly connected with a nitrogen tail gas conveying pipe, the inner wall of the nitrogen tail gas conveying pipe is fixedly connected with a tail gas impurity filter screen, and a cleaning mechanism is arranged in the nitrogen tail gas conveying pipe. The tail gas impurity filter screen can be automatically cleaned, meshes in the tail gas impurity filter screen are prevented from being blocked, the situation that the tail gas impurity filter screen cannot fully filter nitrogen tail gas is avoided, and the pretreatment effect of the nitrogen tail gas is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen tail gas recycling technical field, especially a shallow round bin nitrogen tail gas recycling device. BACKGROUND

[0002] Nitrogen is a colorless and odorless gas, commonly used in grain storage technology, nitrogen is used as an inert gas, by replacing the oxygen in the granary, create a high concentration of nitrogen environment. This environment can kill bacteria and inhibit the respiration of grain, delay grain aging, ensure the safety of stored grain, in the process of nitrogen storage, in order to maintain the concentration of nitrogen in the granary, it may be necessary to fill new nitrogen into the granary. In the process of filling nitrogen, if the nitrogen supply is excessive or the pressure in the granary is too high, part of the nitrogen may be discharged to the external environment through the exhaust system, thereby producing nitrogen tail gas.

[0003] Nitrogen tail gas directly discharged into the air will cause nitrogen resource waste, generally nitrogen tail gas will be recycled, nitrogen tail gas will be pretreated in the recycling process, nitrogen tail gas will be filtered, the particulate impurities in the nitrogen tail gas will be filtered, nitrogen tail gas will be preliminarily purified, but the filter screen will be blocked by dust after long-term use, which will affect the filtering effect of the filter screen, so that the pretreatment of nitrogen tail gas cannot be carried out normally, therefore, the filter screen inside the nitrogen tail gas conveying pipe needs to be cleaned regularly. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a shallow round bin nitrogen tail gas recycling device, which aims to solve the technical problems in the prior art.

[0005] The utility model provides a shallow round bin nitrogen tail gas recycling device, including base, first fixed seat and second fixed seat, the bottom of first fixed seat and second fixed seat is connected with the bottom of base fixedly, the side of second fixed seat is close to first fixed seat, the top of first fixed seat is connected with fixed sleeve through mounting screw and can be dismantled, the inboard of fixed sleeve is fixedly connected with nitrogen tail gas conveying pipe, the inner wall of nitrogen tail gas conveying pipe is fixedly connected with tail gas impurity filter screen, the inside of nitrogen tail gas conveying pipe is provided with cleaning mechanism, the top outer wall of nitrogen tail gas conveying pipe is fixedly connected with inlet pipe, the top of second fixed seat is fixedly installed with membrane separator, the tail end of inlet pipe is fixedly connected with the gas inlet of membrane separator, the gas outlet of membrane separator is connected with back storage component,

[0006] The cleaning mechanism comprises a servo motor, the bottom of the servo motor is detachably connected with the top outer wall of the nitrogen tail gas conveying pipe through mounting screws, the output end of the servo motor is fixedly installed with the rotating shaft through a shaft coupling, the outer wall of the rotating shaft is fixedly connected with a first concave-convex cam plate and a second concave-convex cam plate, the first concave-convex cam plate is adjacent to the second concave-convex cam plate, the inner wall of the nitrogen tail gas conveying pipe is fixedly installed with a guide plate, one end surface of the guide plate is close to the tail gas impurity filter screen, the inside of the guide plate is provided with a guide hole, the inside of the guide hole is slidably connected with a guide rod, the guide rod completely penetrates through the guide hole, one end of the guide rod is fixedly connected with a first movable ball, the other end of the guide rod is fixedly connected with a second movable ball, the outer walls of the first concave-convex cam plate and the second concave-convex cam plate are in contact with the first movable ball, and the outer wall of the second movable ball is in contact with one end surface of the tail gas impurity filter screen.

[0007] As preferred, the number of the first concave-convex cam plate, the second concave-convex cam plate, the first movable ball, the guide rod and the second movable ball is multiple, and the second movable ball is used for extruding the tail gas impurity filter screen to make the tail gas impurity filter screen deformed.

[0008] As preferred, the outer walls of the first concave-convex cam plate and the second concave-convex cam plate are provided with convex parts, the convex positions of the first concave-convex cam plate and the second concave-convex cam plate are inconsistent, the outer walls of the first concave-convex cam plate and the second concave-convex cam plate are provided with grooves, and the groove positions of the first concave-convex cam plate and the second concave-convex cam plate are inconsistent.

[0009] As preferred, the bottom inner side of the nitrogen tail gas conveying pipe is provided with two ash discharge ports which are symmetrically distributed on both sides of the tail gas impurity filter screen.

[0010] As preferred, the bottom outer wall of the nitrogen tail gas conveying pipe is provided with a collecting mechanism, the collecting mechanism comprises a guide ash bin, the top outer wall of the guide ash bin is fixedly connected with the bottom outer wall of the nitrogen tail gas conveying pipe, the ash discharge port is communicated with a V-shaped groove formed in the inside of the guide ash bin, the bottom of the guide ash bin is fixedly connected with an internally threaded pipe, the inner side of the internally threaded pipe is threadedly connected with an externally threaded pipe, and the bottom of the externally threaded pipe is fixedly connected with a collecting cylinder.

[0011] As preferred, the inside of the collecting cylinder is provided with a containing groove, and the shape of the collecting cylinder is circular.

[0012] As preferred, the outer wall of the nitrogen tail gas conveying pipe is fixedly connected with a connecting flange, and a plurality of mounting holes are formed in the inside of the connecting flange.

[0013] Preferably, a water tank is fixedly connected to one side of the first fixing seat, a water pump is fixedly installed on the top of the water tank, a water inlet pipe is fixedly installed on the top of the water pump, the water inlet pipe is fixedly installed with the water inlet of the membrane separator, and a water outlet pipe is fixedly installed at the water outlet of the membrane separator.

[0014] Preferably, the storage assembly includes an exhaust pipe fixedly connected to the air outlet of the membrane separator, one end of the exhaust pipe is fixedly connected to a circulation fan, one end of the circulation fan is fixedly connected to an air guide pipe, one end of the air guide pipe is fixedly connected to a nitrogen recovery silo, the outer wall of the nitrogen recovery silo is fixedly connected to an exhaust gas transmission pipe, and a valve is provided between the air guide pipe and the interior of the exhaust gas transmission pipe.

[0015] The beneficial effects of the utility model are:

[0016] 1. The cleaning mechanism can automatically clean the exhaust impurity filter to prevent the mesh inside the exhaust impurity filter from being blocked, so as to avoid the exhaust impurity filter from being unable to fully filter the nitrogen exhaust gas, thereby effectively improving the pretreatment effect of the nitrogen exhaust gas. The operator does not need to manually remove the exhaust impurity filter from the inside of the nitrogen exhaust gas pipeline frequently for cleaning, which effectively improves the convenience of the operator.

[0017] 2. The collection mechanism can effectively collect the dust generated by the self-cleaning of the exhaust impurity filter, avoiding the accumulation of dust inside the nitrogen exhaust gas pipeline and causing pipeline blockage, which can further improve the cleaning effect of the cleaning mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the cleaning mechanism in the present utility model;

[0020] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle;

[0022] Figure 5 For this utility model Figure 2 Enlarged view of point C in the middle.

[0023] In the picture:

[0024] 1, base; 2, first fixed seat; 3, nitrogen tail gas conveying pipe; 4, tail gas impurity filter screen; 5, cleaning mechanism; 6, fixed sleeve; 7, collecting mechanism; 8, air inlet pipe; 9, second fixed seat; 10, membrane separator; 11, water tank; 12, water pump; 13, exhaust pipe; 14, circulating fan; 15, gas guide pipe; 16, nitrogen recovery round bin; 17, tail gas conveying pipe; 18, connecting flange; 19, ash discharge port; 20, ash guide bin; 21, internal thread pipe; 22, external thread pipe; 23, collecting cylinder; 51, servo motor; 52, rotating shaft; 53, first concave-convex cam piece; 54, second concave-convex cam piece; 55, first movable ball; 56, guide rod; 57, second movable ball; 58, guide plate; 59, guide hole.

[0025] The realization, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0026] It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] As Figures 1-5As shown, the application provides a kind of shallow round nitrogen tail gas recycling device, including base 1, first fixed seat 2 and second fixed seat 9, the bottom of first fixed seat 2 and second fixed seat 9 is fixedly connected with the bottom of base 1, the side of second fixed seat 9 close to first fixed seat 2, the top of first fixed seat 2 is detachably connected with fixed sleeve 6 by mounting screw, the inner side of fixed sleeve 6 is fixedly connected with nitrogen tail gas conveying pipe 3, the outer wall of nitrogen tail gas conveying pipe 3 is fixedly connected with connecting flange 18, a plurality of mounting holes are formed in the inside of connecting flange 18, connecting flange 18 is convenient for nitrogen tail gas conveying pipe 3 and other pipeline connection, the inner wall of nitrogen tail gas conveying pipe 3 is fixedly connected with tail gas impurity filter screen 4, 4 tail gas impurity filter screen is made of elastic material, with certain deformation effect, cleaning mechanism 5 is arranged in the inside of nitrogen tail gas conveying pipe 3, the top outer wall of nitrogen tail gas conveying pipe 3 is fixedly connected with inlet pipe 8, membrane separator 10 is fixedly installed on the top of second fixed seat 9, the tail end of inlet pipe 8 is fixedly connected with the gas inlet of membrane separator 10, the gas outlet of membrane separator 10 is connected with back storage component, water tank 11 is fixedly connected on the side of first fixed seat 2, water pump 12 is fixedly installed on the top of water tank 11, inlet pipe is fixedly installed on the top of water pump 12, inlet pipe is fixedly installed with the water inlet of membrane separator 10, the water outlet of membrane separator 10 is fixedly installed with outlet pipe, storage component includes exhaust pipe 13 fixedly connected with the gas outlet of membrane separator 10, one end of exhaust pipe 13 is fixedly connected with circular flow fan 14, one end of circular flow fan 14 is fixedly connected with air guide pipe 15, one end of air guide pipe 15 is fixedly connected with nitrogen recovery round bin 16, the outer wall of nitrogen recovery round bin 16 is fixedly connected with tail gas transmission pipe 17, valve is communicated in the inside of air guide pipe 15 and tail gas transmission pipe 17.

[0028] The use process of the utility model is:

[0029] Nitrogen tail gas is pretreated by filtering and then enters the inside of membrane separator 10, then water pump 12 can be started to guide the water in water tank 11 into the inside of membrane separator 10, the working principle of membrane separator 10 is that semi-permeable membrane is contacted with raw material gas, under the drive of pressure difference on both sides of membrane, gas molecules are separated by permeating membrane, different gas molecules are separated due to the difference of size, shape, polarity and chemical interaction, and the permeation rate in membrane is different, thereby realizing the separation between components, the separation effect of membrane separator 10 is optimized by the flow of water, nitrogen tail gas enters membrane separator 10 for gas separation, nitrogen is separated out, then enters circular flow fan 14 through exhaust pipe 13, and is discharged into nitrogen recovery round bin 16 through the cooperation of circular flow fan 14 and air guide pipe 15 for water recovery, which is convenient for secondary use.

[0030] As Figure 1 , Figure 2 , Figure 4 With Figure 5As shown, the cleaning mechanism 5 includes a servo motor 51, the bottom of the servo motor 51 is detachably connected with the top outer wall of the nitrogen tail gas conveying pipe 3 through mounting screws, the output end of the servo motor 51 is fixedly installed with a rotating shaft 52 through a shaft coupling, the outer wall of the rotating shaft 52 is fixedly connected with a first concave-convex cam plate 53 and a second concave-convex cam plate 54, the first concave-convex cam plate 53 is adjacent to the second concave-convex cam plate 54, the inner wall of the nitrogen tail gas conveying pipe 3 is fixedly installed with a guide plate 58, the guide plate 58 is close to one end surface of the tail gas impurity filter screen 4, the inside of the guide plate 58 is provided with a guide hole 59, the guide hole 59 is slidably connected with a guide rod 56, the guide rod 56 completely penetrates the guide hole 59, one end of the guide rod 56 is fixedly connected with a first movable ball 55, the other end of the guide rod 56 is fixedly connected with a second movable ball 57, the outer walls of the first concave-convex cam plate 53 and the second concave-convex cam plate 54 are in contact with the first movable ball 55, the outer wall of the second movable ball 57 is in contact with one end surface of the tail gas impurity filter screen 4, the number of the first concave-convex cam plate 53, the second concave-convex cam plate 54, the first movable ball 55, the guide rod 56 and the second movable ball 57 is multiple, and the second movable ball 57 is used for extruding the tail gas impurity filter screen 4 to make the tail gas impurity filter screen 4 deform. The outer walls of the first concave-convex cam plate 53 and the second concave-convex cam plate 54 are provided with convex portions, the convex positions of the first concave-convex cam plate 53 and the second concave-convex cam plate 54 are inconsistent, and the outer walls of the first concave-convex cam plate 53 and the second concave-convex cam plate 54 are provided with grooves, and the groove positions of the first concave-convex cam plate 53 and the second concave-convex cam plate 54 are inconsistent.

[0031] As shown in the figure, Figure 1 With Figure 3 As shown, the bottom inside of the nitrogen tail gas conveying pipe 3 is provided with two ash discharge ports 19, and the two ash discharge ports 19 are symmetrically distributed on both sides of the tail gas impurity filter screen 4. The bottom outer wall of the nitrogen tail gas conveying pipe 3 is provided with a collecting mechanism 7, the collecting mechanism 7 includes a guide ash bin 20, the top outer wall of the guide ash bin 20 is fixedly connected with the bottom outer wall of the nitrogen tail gas conveying pipe 3, the ash discharge port 19 is communicated with the V-shaped groove formed in the inside of the guide ash bin 20, the bottom of the guide ash bin 20 is fixedly connected with an internally threaded pipe 21, the inside of the internally threaded pipe 21 is threadedly connected with an externally threaded pipe 22, the bottom of the externally threaded pipe 22 is fixedly connected with a collecting cylinder 23, the inside of the collecting cylinder 23 is provided with a containing groove, and the shape of the collecting cylinder 23 is circular.

[0032] The technical principle of the utility model is:

[0033] When the nitrogen tail gas enters the inside of the nitrogen tail gas conveying pipe 3, the tail gas impurity filter screen 4 filters the nitrogen tail gas, when the dust blocks the mesh of the tail gas impurity filter screen 4, the servo motor 51 can be started to drive the rotating shaft 52 to rotate, the rotating shaft 52 drives the first concave-convex cam piece 53 and the second concave-convex cam piece 54 to rotate after rotating, the first concave-convex cam piece 53 and the second concave-convex cam piece 54 drive the corresponding first movable ball 55 to reciprocate through the different concave-convex positions, the first movable ball 55 reciprocates to cooperate with the guiding effect and the connecting effect of the guide rod 56, the guide plate 58 and the guide hole 59 to drive the plurality of second movable balls 57 to reciprocate with different lengths to extrude the surface of the tail gas impurity filter screen 4, the tail gas impurity filter screen 4 is deformed after being extruded, the dust in the mesh of the tail gas impurity filter screen 4 is shaken off, the shaken-off dust enters the inside of the ash guiding bin 20 through the ash discharging port 19, and the ash guiding bin 20 guides the dust into the collecting cylinder 23, the collecting cylinder 23 is convenient to disassemble from the ash guiding bin 20 through the thread structure of the inner threaded pipe 21 and the outer threaded pipe 22, and the dust collected in the collecting cylinder 23 can be centrally treated after being disassembled, so that the phenomenon of pipeline blockage caused by the dust blocking in the inside of the nitrogen tail gas conveying pipe 3 is avoided.

[0034] It should be noted that in this document, the terms "comprise", "comprising", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, device, article or method that comprises a list of elements does not only include those elements, but can also include other elements not expressly listed or inherent to such process, device, article or method. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, device, article or method that includes the element.

[0035] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A device for recycling and reusing the nitrogen tail gas of a silo, characterized in that, The utility model provides a nitrogen tail gas gas conveying pipe, membrane separator, gas inlet, gas outlet, back storage assembly, base (1), first fixed seat (2) and second fixed seat (9), the bottom of first fixed seat (2) and second fixed seat (9) are fixedly connected with the bottom of base (1), the side of second fixed seat (9) is close to first fixed seat (2), the top of first fixed seat (2) is detachably connected with fixed sleeve (6) through mounting screw, the inboard of fixed sleeve (6) is fixedly connected with nitrogen tail gas gas conveying pipe (3), the inner wall of nitrogen tail gas gas conveying pipe (3) is fixedly connected with tail gas impurity filter screen (4), the inside of nitrogen tail gas gas conveying pipe (3) is provided with cleaning mechanism (5), the top outer wall of nitrogen tail gas gas conveying pipe (3) is fixedly connected with air inlet pipe (8), the top of second fixed seat (9) is fixedly installed with membrane separator (10), the tail end of air inlet pipe (8) is fixedly connected with the gas inlet of membrane separator (10), and the gas outlet of membrane separator (10) is connected with back storage assembly, The cleaning mechanism (5) includes a servo motor (51), the bottom of the servo motor (51) is detachably connected with the top outer wall of the nitrogen tail gas gas conveying pipe (3) through mounting screws, the output end of the servo motor (51) is fixedly installed with a shaft (52) through a shaft coupling, the outer wall of the shaft (52) is fixedly connected with a first concave-convex cam piece (53) and a second concave-convex cam piece (54), the first concave-convex cam piece (53) is adjacent to the second concave-convex cam piece (54), the inner wall of the nitrogen tail gas gas conveying pipe (3) is fixedly installed with a guide plate (58), one end surface of the guide plate (58) is close to the tail gas impurity filter screen (4), the inside of the guide plate (58) is provided with a guide hole (59), the guide hole (59) is slidably connected with a guide rod (56), the guide rod (56) penetrates the guide hole (59), one end of the guide rod (56) is fixedly connected with a first movable ball (55), the other end of the guide rod (56) is fixedly connected with a second movable ball (57), the outer wall of the first concave-convex cam piece (53) and the second concave-convex cam piece (54) is in contact with the first movable ball (55), and the outer wall of the second movable ball (57) is in contact with one end surface of the tail gas impurity filter screen (4).

2. The shallow silo nitrogen gas tail gas recycle and reuse apparatus of claim 1, wherein, The first concave-convex cam piece (53), the second concave-convex cam piece (54), the first movable ball (55), the guide rod (56) and the second movable ball (57) are provided in plurality, and the second movable ball (57) is used for extruding the tail gas impurity filter screen (4) to make the tail gas impurity filter screen (4) deform.

3. The shallow silo nitrogen gas tail gas recycle and reuse apparatus of claim 1, wherein, The outer wall of the first concave-convex cam piece (53) and the second concave-convex cam piece (54) is provided with a convex part, the convex positions of the first concave-convex cam piece (53) and the second concave-convex cam piece (54) are inconsistent, and the outer wall of the first concave-convex cam piece (53) and the second concave-convex cam piece (54) is provided with a groove, and the groove positions of the first concave-convex cam piece (53) and the second concave-convex cam piece (54) are inconsistent.

4. The silo nitrogen gas tail gas recycle and reuse apparatus of claim 1, wherein, The bottom inner side of the nitrogen tail gas conveying pipe (3) is provided with two ash discharge ports (19) which are symmetrically distributed on both sides of the tail gas impurity filter screen (4).

5. The silo nitrogen gas tail gas recycle device of claim 4, wherein, The bottom outer wall of the nitrogen tail gas conveying pipe (3) is provided with a collecting mechanism (7), the collecting mechanism (7) comprises a dust guide bin (20), the top outer wall of the dust guide bin (20) is fixedly connected with the bottom outer wall of the nitrogen tail gas conveying pipe (3), the ash discharge port (19) is communicated with a V-shaped groove formed in the inside of the dust guide bin (20), the bottom of the dust guide bin (20) is fixedly connected with an internally threaded pipe (21), the inside of the internally threaded pipe (21) is threadedly connected with an externally threaded pipe (22), the bottom of the externally threaded pipe (22) is fixedly connected with a collecting cylinder (23).

6. The silo nitrogen gas tail gas recycle device of claim 5, wherein, The inside of the collecting cylinder (23) is provided with a containing groove, and the shape of the collecting cylinder (23) is circular.

7. The silo nitrogen gas tail gas recycle and reuse apparatus of claim 1, wherein, The outer wall of the nitrogen tail gas conveying pipe (3) is fixedly connected with a connecting flange (18), and a plurality of mounting holes are formed in the inside of the connecting flange (18).

8. The silo nitrogen gas tail gas recycle and reuse apparatus of claim 1, wherein, One side of the first fixed seat (2) is fixedly connected with a water tank (11), the top of the water tank (11) is fixedly installed with a water pump (12), the top of the water pump (12) is fixedly installed with an inlet pipe, the inlet pipe is fixedly installed with a water inlet of the membrane separator (10), and the water outlet of the membrane separator (10) is fixedly installed with an outlet pipe.

9. The silo nitrogen gas tail gas recycle and reuse apparatus of claim 1, wherein, The storage assembly comprises an exhaust pipe (13) fixedly connected with the air outlet of the membrane separator (10), one end of the exhaust pipe (13) is fixedly connected with a circular flow fan (14), one end of the circular flow fan (14) is fixedly connected with a gas guide pipe (15), one end of the gas guide pipe (15) is fixedly connected with a nitrogen recovery circular bin (16), the outer wall of the nitrogen recovery circular bin (16) is fixedly connected with a tail gas conveying pipe (17), and the inside of the gas guide pipe (15) and the tail gas conveying pipe (17) is communicated with a valve.

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