CN215539761U - A tail gas filter equipment for 2-pyridine acetate hydrochloride is synthetic - Google Patents
A tail gas filter equipment for 2-pyridine acetate hydrochloride is synthetic Download PDFInfo
- Publication number
- CN215539761U CN215539761U CN202120993532.5U CN202120993532U CN215539761U CN 215539761 U CN215539761 U CN 215539761U CN 202120993532 U CN202120993532 U CN 202120993532U CN 215539761 U CN215539761 U CN 215539761U
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- tail gas
- box
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- middle position
- frame
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- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 title claims abstract description 13
- HDRXZJPWHTXQRI-BHDTVMLSSA-N diltiazem hydrochloride Chemical compound [Cl-].C1=CC(OC)=CC=C1[C@H]1[C@@H](OC(C)=O)C(=O)N(CC[NH+](C)C)C2=CC=CC=C2S1 HDRXZJPWHTXQRI-BHDTVMLSSA-N 0.000 title claims abstract description 7
- 238000000746 purification Methods 0.000 claims abstract description 58
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000003786 synthesis reaction Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- MQVISALTZUNQSK-UHFFFAOYSA-N 2-pyridin-2-ylacetic acid;hydrochloride Chemical compound Cl.OC(=O)CC1=CC=CC=N1 MQVISALTZUNQSK-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 27
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 48
- 239000007864 aqueous solution Substances 0.000 description 16
- 239000000243 solution Substances 0.000 description 9
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a tail gas filtering device for synthesizing 2-pyridine acetate hydrochloride, which comprises a movable base, a movable brake wheel, a tail gas purifying box, a treatment discharging box, a tail gas pipe, a filling pipe, a floatable detection purifying frame structure, a pluggable replacement frame structure, an observable sampling conveying box structure, a plugging hole, a filling hole, an inverted U-shaped guide pipe, a connecting hole, a discharging pipe and a replacement hole. The arrangement of the sliding frame, the filter mesh, the floating block, the measuring rod, the tail gas purification box and the filling pipe is beneficial to pushing the floating block through a solution in the use process, then the upper end of the measuring rod penetrates through the upper end of the tail gas purification box, the arrangement of the liquid level detection work U-shaped frame, the inserting frame, the purification mesh, the pushing cover, the L-shaped connecting seat, the wing-shaped bolt and the treatment exhaust box in the use process is convenient, the secondary treatment work of the tail gas through the purification mesh in the use process is facilitated, and the tail gas is prevented from containing other components to pollute the environment.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, and particularly relates to a tail gas filtering device for synthesis of 2-pyridine acetate.
Background
2-pyridine acetic acid hydrochloride can produce tail gas in the process of using equipment for synthesis, and a tail gas filtering device is required for tail gas filtering.
But current tail gas filter equipment still exists the in-process inconvenient liquid level detection work of carrying on using, and inconvenient in-process that carries out secondary purification and change liquid carries out liquid sampling detection's problem at the in-process that uses inconveniently.
Therefore, the utility model is necessary to invent a tail gas filtering device for synthesizing 2-pyridine acetate.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a tail gas filtering device for synthesizing 2-pyridine acetate hydrochloride, which is used for solving the problems that the existing tail gas filtering device is inconvenient to carry out liquid level detection work in the using process and is inconvenient to carry out liquid sampling detection in the processes of secondary purification and liquid replacement in the using process. A tail gas filtering device for synthesizing 2-pyridine acetate hydrochloride comprises a movable base, movable brake wheels, a tail gas purifying box, a treatment discharging box, a tail gas pipe, a filling pipe, a floatable detection purifying frame structure, a pluggable replacing frame structure, an observable sampling conveying box structure, a plugging hole, a filling hole, an inverted U-shaped guiding pipe, a connecting hole, a discharging pipe and a replacing hole, wherein the movable brake wheels are respectively bolted at four corners of the lower end of the movable base; the tail gas purification box is connected to the middle position of the left side of the upper end of the movable base through a bolt; the processing discharge box is connected to the middle position of the right side of the upper end of the movable base through a bolt; the lower end of the tail gas pipe penetrates through the insertion hole and is inserted in the middle of the left side in the tail gas purification box; the filling pipe penetrates through the filling hole and is inserted in the middle position inside the tail gas purification box; the floatable detection purification frame structure is arranged in the middle of the interior of the tail gas purification box; the pluggable replacement frame structure is arranged in the middle of the right side of the treatment and discharge box; the observable sampling conveying box structure is arranged at the lower part of the left side of the tail gas purification box; the plug hole is formed in the middle of the left side of the upper end of the tail gas purification box; the filling hole is formed in the middle of the upper end of the tail gas purification box; the lower ends of the inverted U-shaped guide pipes respectively penetrate through the connecting holes; the connecting holes are respectively arranged on the right side of the upper end of the tail gas purification box and the left side of the upper end of the treatment discharge box; the lower end of the discharge pipe is in threaded connection with the middle position of the lower part of the front surface of the treatment discharge box; the replacing hole is arranged in the middle of the right side of the processing and discharging box.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the arrangement of the sliding frame, the filter screen, the floating block, the measuring rod, the tail gas purification box and the filling pipe is beneficial to pushing the floating block through the solution in the use process, and then the upper end of the measuring rod penetrates through the upper end of the tail gas purification box, so that the liquid level detection work is convenient in the use process.
According to the utility model, the arrangement of the U-shaped frame, the inserting frame, the purification mesh, the pushing cover, the L-shaped connecting seat, the wing bolt and the treatment exhaust box is beneficial to performing secondary treatment work on tail gas through the purification mesh in the use process, so that the tail gas is prevented from containing other components to pollute the environment.
In the utility model, the arrangement of the connecting pipe, the conveying valve, the observation box, the discharge pipe and the sampling pipe is beneficial to the solution sampling work through the sampling pipe in the solution discharge process, and the solution detection work in the tail gas treatment process is convenient.
According to the utility model, the U-shaped frame, the inserting frame, the purification net piece, the pushing cover, the L-shaped connecting seat and the wing bolt are arranged, so that the U-shaped frame and the inserting frame can be inserted and arranged in the using process, the inserting frame can be conveniently detached in the using process, and the purification net piece can be conveniently replaced.
According to the utility model, the arrangement of the connecting pipe, the conveying valve, the observation box, the discharge pipe, the observation sheet and the tail gas purification box is beneficial to observing the solution passing through the inside of the observation box through the observation sheet in the use process, and the observation function is conveniently added in the work process.
According to the utility model, the arrangement of the sliding frame, the filter screen, the floating block, the tail gas purification box, the tail gas pipe and the filling pipe is beneficial to carrying out secondary purification work on the tail gas purified by the solution through the filter screen in the use process, and is convenient for carrying out multiple purification work on the tail gas in the use process.
According to the utility model, the arrangement of the movable base, the movable brake wheel, the tail gas purification box, the treatment discharge box, the tail gas pipe and the filling pipe is beneficial to pushing the movable base to move in the use process, is convenient to increase the moving function in the use process, and is beneficial to carrying out tail gas treatment work at different positions.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the floatable detection purification rack structure of the present invention;
FIG. 3 is a schematic structural view of a pluggable replacement shelf structure of the present invention;
FIG. 4 is a schematic view of the structure of the observable sampling transport box of the present invention.
In the figure:
1. moving the base; 2. moving the brake wheel; 3. a tail gas purification box; 4. treating the discharge tank; 5. a tail gas pipe; 6. a filling pipe; 7. a floatable detection purification rack structure; 71. a carriage; 72. a filter mesh sheet; 73. a floating block; 74. a measuring rod; 75. PVC balls; 8. the frame structure can be replaced by plugging; 81. a U-shaped frame; 82. a plug-in frame; 83. purifying the mesh sheet; 84. pushing the cover; 85. an L-shaped connecting seat; 86. a wing bolt; 9. the structure of the sampling conveying box can be observed; 91. a connecting pipe; 92. a delivery valve; 93. an observation box; 94. a discharge pipe; 95. an observation sheet; 96. a sampling tube; 10. inserting holes; 11. filling holes; 12. an inverted U-shaped delivery pipe; 13. connecting holes; 14. a discharge pipe; 15. the holes are replaced.
Detailed Description
The utility model is described in detail with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, a tail gas filtering device for synthesizing 2-pyridine acetate hydrochloride comprises a movable base 1, a movable brake wheel 2, a tail gas purifying box 3, a treatment discharge box 4, a tail gas pipe 5, a filling pipe 6, a floatable detection purifying frame structure 7, a pluggable replacement frame structure 8, an observable sampling conveying box structure 9, a plugging hole 10, a filling hole 11, an inverted U-shaped guide conveying pipe 12, a connecting hole 13, a discharge pipe 14 and a replacement hole 15, wherein the movable brake wheel 2 is respectively bolted at four corners of the lower end of the movable base 1; the tail gas purification box 3 is connected to the middle position of the left side of the upper end of the movable base 1 through a bolt; the processing discharge box 4 is connected to the middle position of the right side of the upper end of the movable base 1 through a bolt; the lower end of the tail gas pipe 5 penetrates through the plug hole 10 and is plugged in the middle position of the left side in the tail gas purification box 3; the filling pipe 6 penetrates through the filling hole 11 and is inserted in the middle position inside the tail gas purification box 3; the floatable detection purification frame structure 7 is arranged in the middle of the interior of the tail gas purification box 3; the pluggable replacement frame structure 8 is arranged in the middle of the right side of the treatment and discharge box 4; the observable sampling conveying box structure 9 is arranged at the lower part of the left side of the tail gas purifying box 3; the plug hole 10 is arranged in the middle of the left side of the upper end of the tail gas purification box 3; the filling hole 11 is formed in the middle of the upper end of the tail gas purification box 3; the lower ends of the inverted U-shaped guide pipes 12 respectively penetrate through the connecting holes 13; the connecting holes 13 are respectively arranged on the right side of the upper end of the tail gas purification box 3 and the left side of the upper end of the treatment discharge box 4; the lower end of the discharge pipe 14 is screwed in the middle of the lower part of the front surface of the treatment discharge box 4; the replacing hole 15 is arranged at the middle position of the right side of the processing and discharging box 4; the floatable detection purification frame structure 7 comprises a sliding frame 71, a filter screen 72, a floating block 73, a measuring rod 74 and a PVC ball 75, wherein the filter screen 72 is connected to the middle position of the inner wall of the sliding frame 71 through a screw; the floating blocks 73 are respectively bolted at the left side and the right side of the lower end of the sliding frame 71; the lower end of the measuring rod 74 is respectively bolted at the middle positions of the left side and the right side of the upper end of the filter screen 72; the upper end of the measuring rod 74 is respectively in threaded connection with the middle position inside the lower end of the PVC ball 75; when using, promote to remove mobile base 1 and remove, will remove mobile base 1 and remove to suitable position, then make tail gas conveying equipment connected to the left end of tail gas pipe 5, then fill tertiary sodium hydroxide aqueous solution to the inside of tail gas purifying box 3 through filling pipe 6, promote floating block 73 and carriage 71 through tertiary sodium hydroxide aqueous solution, observe tertiary sodium hydroxide aqueous solution's capacity through measuring stick 74, conveniently carry out liquid level detection work at the in-process that uses.
In this embodiment, referring to fig. 3, the pluggable replacement frame structure 8 includes a U-shaped frame 81, a plugging frame 82, a purification mesh 83, a pushing cover 84, an L-shaped connecting seat 85 and a wing bolt 86, wherein the plugging frame 82 is slidably plugged into the middle position inside the right side of the U-shaped frame 81; the purification net sheets 83 are sequentially connected to the inner wall of the inserting frame 82 from top to bottom through screws; the right end of the inserting frame 82 is connected with the middle position of the left side of the pushing cover 84 through a bolt; the L-shaped connecting seat 85 is respectively welded at the upper end and the lower end of the push cover 84; the wing bolts 86 respectively penetrate through the middle positions inside the L-shaped connecting seats 85; then make tail gas through the inside bottom that tail gas pipe 5 got into tail gas clean box 3, carry out tail gas purification work through tertiary sodium hydroxide aqueous solution, make the tail gas after the purification get into through the inside of the pipe 12 of leading of the type of falling U and handle discharge box 4, then carry out the tail gas secondary treatment work after purifying through purifying net piece 83, prevent to pollute operational environment in the work.
In this embodiment, referring to fig. 4, the observable sampling conveying box structure 9 includes a connecting pipe 91, a conveying valve 92, an observation box 93, a discharge pipe 94, an observation sheet 95 and a sampling pipe 96, wherein the conveying valve 92 is screwed into the middle position inside the upper end of the connecting pipe 91; the left end of the connecting pipe 91 is in threaded connection with the middle position of the right side of the observation box 93 and is communicated with the observation box; the discharge pipe 94 is in threaded connection with the middle position of the left side of the observation box 93; the observation sheet 95 is embedded in the middle of the upper end of the observation box 93; the sampling tube 96 is in threaded connection with the middle position of the lower end of the observation box 93; carry out the in-process of work for a long time through rotating delivery valve 92, make tertiary sodium hydroxide aqueous solution discharge through connecting pipe 91 and observation box 93, carry out tertiary sodium hydroxide aqueous solution change work, the tail gas treatment work is carried out to the convenience in the work, carry out sample work through sampling tube 96 simultaneously in the work, the convenience carries out sample detection work to tertiary sodium hydroxide aqueous solution in the work, carry out treatment to sewage treatment plant in through discharge pipe 94 and the cooperation of external conveying equipment with discharged tertiary sodium hydroxide aqueous solution simultaneously, and then accomplish tail gas treatment work.
In this embodiment, specifically, sealing rings are arranged at the joints of the exhaust pipe 5 and the filler pipe 6 and the exhaust gas purification box 3; the tail gas purifying box 3 and the processing and discharging box 4 are connected through an inverted U-shaped guide pipe 12, and a sealing ring is arranged at the joint.
In this embodiment, specifically, the measuring rod 74 is a PVC rod with a centimeter marked on the surface and the upper end is set as a zero start end; the floating block 73 is a rectangular PVC block.
In this embodiment, specifically, the sliding frame 71 is slidably inserted into the exhaust gas purifying box 3; the upper end of the measuring rod 74 penetrates through the left side and the right side of the upper end of the tail gas purification box 3 respectively; the lower end of the tail gas pipe 5 penetrates through the middle position of the left side inside the filter mesh 72; the lower end of the filling pipe 6 penetrates through the middle position inside the filter mesh sheet 72.
In this embodiment, specifically, a sealing ring is disposed between the U-shaped frame 81 and the insertion frame 82; the wing bolts 86 are respectively provided at the upper and lower ends of the push cover 84.
In this embodiment, specifically, the U-shaped frame 81 is bolted to the middle position of the inner wall of the treatment and discharge box 4 and is disposed corresponding to the replacement hole 15; the inserting frame 82 penetrates through the replacing hole 15; the pushing cover 84 is arranged in the middle of the right side of the treatment and discharge box 4, and a sealing ring is arranged at the joint; the wing bolt 86 is connected with the processing and discharging box 4 by screw thread.
In this embodiment, specifically, the observation sheet 95 is a transparent tempered glass sheet; the front surface of the sampling tube 96 is inserted with a manual valve through screw threads.
In this embodiment, specifically, the right end of the connecting pipe 91 is connected to the lower part of the left side of the exhaust gas purifying box 3 in a threaded manner and is communicated with the lower part.
Principle of operation
In the utility model, when in use, the movable base 1 is pushed to move, the movable base 1 is moved to a proper position, then the left end of the tail gas pipe 5 is connected with a tail gas conveying device, then a three-level sodium hydroxide aqueous solution is filled into the tail gas purifying box 3 through the filling pipe 6, the floating block 73 and the sliding frame 71 are pushed through the three-level sodium hydroxide aqueous solution, the capacity of the three-level sodium hydroxide aqueous solution is observed through the measuring rod 74, the liquid level detection work is convenient to be carried out in the use process, then the tail gas enters the bottom end of the tail gas purifying box 3 through the tail gas pipe 5, the tail gas purifying work is carried out through the three-level sodium hydroxide aqueous solution, the purified tail gas enters the treatment discharge box 4 through the inverted U-shaped guide pipe 12, then the purified tail gas secondary treatment work is carried out through the purifying net sheet 83, and the pollution to the working environment in the work is prevented, carry out the in-process of work for a long time through rotating delivery valve 92, make tertiary sodium hydroxide aqueous solution discharge through connecting pipe 91 and observation box 93, carry out tertiary sodium hydroxide aqueous solution change work, the tail gas treatment work is carried out to the convenience in the work, carry out sample work through sampling tube 96 simultaneously in the work, the convenience carries out sample detection work to tertiary sodium hydroxide aqueous solution in the work, carry out treatment to sewage treatment plant in through discharge pipe 94 and the cooperation of external conveying equipment with discharged tertiary sodium hydroxide aqueous solution simultaneously, and then accomplish tail gas treatment work.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (6)
1. A tail gas filtering device for synthesis of 2-pyridine acetate hydrochloride comprises a movable base (1), a movable brake wheel (2), a tail gas purifying box (3), a treatment discharge box (4), a tail gas pipe (5), a filling pipe (6), a floatable detection purifying frame structure (7), a pluggable frame replacing structure (8), an observable sampling conveying box structure (9), a plugging hole (10), a filling hole (11), an inverted U-shaped guiding pipe (12), a connecting hole (13), a discharging pipe (14) and a replacing hole (15), wherein the movable brake wheel (2) is respectively bolted at four corners of the lower end of the movable base (1); the tail gas purification box (3) is connected to the middle position of the left side of the upper end of the movable base (1) through a bolt; the processing discharge box (4) is connected to the middle position of the right side of the upper end of the movable base (1) through a bolt; the lower end of the tail gas pipe (5) penetrates through the plug hole (10) and is plugged in the middle position of the left side in the tail gas purification box (3); the filling pipe (6) penetrates through the filling hole (11) and is inserted in the middle position in the tail gas purification box (3); the plug hole (10) is arranged in the middle of the left side of the upper end of the tail gas purification box (3); the filling hole (11) is formed in the middle of the upper end of the tail gas purification box (3); the lower ends of the inverted U-shaped guide pipes (12) respectively penetrate through the connecting holes (13); the connecting holes (13) are respectively arranged on the right side of the upper end of the tail gas purification box (3) and the left side of the upper end of the treatment discharge box (4); the lower end of the discharge pipe (14) is in threaded connection with the middle position of the lower part of the front surface of the treatment discharge box (4); the replacement hole (15) is arranged in the middle of the right side of the treatment discharge box (4); the device is characterized in that the floatable detection purification frame structure (7) in the tail gas filtering device for synthesizing the (2) -pyridine acetic acid hydrochloride is arranged in the middle position in the tail gas purification box (3); the pluggable replacement frame structure (8) is arranged in the middle of the right side of the treatment and discharge box (4); the observable sampling conveying box structure (9) is arranged at the lower part of the left side of the tail gas purification box (3); the floatable detection purification frame structure (7) comprises a sliding frame (71), a filter screen (72), a floating block (73), a measuring rod (74) and a PVC ball (75), wherein the filter screen (72) is connected to the middle position of the inner wall of the sliding frame (71) through screws; the floating blocks (73) are respectively connected to the left side and the right side of the lower end of the sliding frame (71) through bolts; the lower end of the measuring rod (74) is respectively bolted at the middle positions of the left side and the right side of the upper end of the filter screen (72); the upper end of the measuring rod (74) is respectively in threaded connection with the middle position inside the lower end of the PVC ball (75).
2. The tail gas filtering device for 2-pyridine acetate synthesis according to claim 1, characterized in that the pluggable replacement frame structure (8) comprises a U-shaped frame (81), a plugging frame (82), a purification net sheet (83), a pushing cover (84), an L-shaped connecting seat (85) and a wing bolt (86), wherein the plugging frame (82) is plugged in the middle position inside the right side of the U-shaped frame (81) in a sliding manner; the purification net sheets (83) are sequentially connected to the inner wall of the plug-in frame (82) from top to bottom through screws; the right end of the inserting frame (82) is connected with the middle position of the left side of the pushing cover (84) through a bolt; the L-shaped connecting seat (85) is respectively welded at the upper end and the lower end of the push cover (84); the wing bolts (86) respectively penetrate through the middle position inside the L-shaped connecting seat (85).
3. The apparatus for filtering off-gas in 2-pyridine acetate synthesis according to claim 1, wherein the observable sampling delivery box structure (9) comprises a connection pipe (91), a delivery valve (92), an observation box (93), a discharge pipe (94), an observation sheet (95) and a sampling pipe (96), the delivery valve (92) is screwed in the middle of the upper end of the connection pipe (91); the left end of the connecting pipe (91) is in threaded connection with the middle position of the right side of the observation box (93) and is communicated with the observation box; the discharge pipe (94) is in threaded connection with the middle position of the left side of the observation box (93); the observation sheet (95) is embedded in the middle of the inside of the upper end of the observation box (93); the sampling tube (96) is in threaded connection with the middle position of the lower end of the observation box (93).
4. The exhaust gas filtering device for synthesis of 2-pyridine acetic acid hydrochloride according to claim 1, characterized in that the sliding frame (71) is slidably inserted inside the exhaust gas purification box (3); the upper end of the measuring rod (74) penetrates through the left side and the right side of the upper end of the tail gas purification box (3) respectively; the lower end of the tail gas pipe (5) penetrates through the middle position of the left side inside the filter mesh (72); the lower end of the filling pipe (6) penetrates through the middle position inside the filter screen sheet (72).
5. The tail gas filtering device for synthesis of 2-pyridine acetate according to claim 2, characterized in that the U-shaped frame (81) is bolted to the middle position of the inner wall of the treatment discharge box (4) and is arranged corresponding to the replacement hole (15); the inserting frame (82) penetrates through the replacing hole (15); the pushing cover (84) is arranged in the middle of the right side of the treatment and discharge box (4), and a sealing ring is arranged at the joint; the wing bolt (86) is in threaded connection with the processing and discharging box (4).
6. The tail gas filtering device for synthesis of 2-pyridine acetate according to claim 1, characterized in that the right end of the connecting pipe (91) is screwed and connected to the lower part of the left side of the tail gas purifying tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120993532.5U CN215539761U (en) | 2021-05-11 | 2021-05-11 | A tail gas filter equipment for 2-pyridine acetate hydrochloride is synthetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120993532.5U CN215539761U (en) | 2021-05-11 | 2021-05-11 | A tail gas filter equipment for 2-pyridine acetate hydrochloride is synthetic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215539761U true CN215539761U (en) | 2022-01-18 |
Family
ID=79859866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120993532.5U Expired - Fee Related CN215539761U (en) | 2021-05-11 | 2021-05-11 | A tail gas filter equipment for 2-pyridine acetate hydrochloride is synthetic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215539761U (en) |
-
2021
- 2021-05-11 CN CN202120993532.5U patent/CN215539761U/en not_active Expired - Fee Related
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Granted publication date: 20220118 |