CN116654339A - PTA powder horizontal feeding device and method thereof - Google Patents
PTA powder horizontal feeding device and method thereof Download PDFInfo
- Publication number
- CN116654339A CN116654339A CN202310867003.4A CN202310867003A CN116654339A CN 116654339 A CN116654339 A CN 116654339A CN 202310867003 A CN202310867003 A CN 202310867003A CN 116654339 A CN116654339 A CN 116654339A
- Authority
- CN
- China
- Prior art keywords
- feeding
- valve
- pipe
- pneumatic
- pta powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000843 powder Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000010926 purge Methods 0.000 claims description 6
- 238000005273 aeration Methods 0.000 claims 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 17
- 238000004806 packaging method and process Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
- B65B1/16—Methods of, or means for, filling the material into the containers or receptacles by pneumatic means, e.g. by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/28—Controlling escape of air or dust from containers or receptacles during filling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to a PTA powder horizontal feeding device and a method thereof, wherein the PTA powder horizontal feeding device comprises a feeding module and a wagon balance for measuring the weight of a container, the feeding module comprises a finished product bin and a feeding pipe, the upper end of the feeding pipe is connected with the bottom of the finished product bin, a valve for controlling the on-off and the flow rate of materials is arranged in the middle of the feeding pipe, and the lower end of the feeding pipe extends into the container.
Description
Technical Field
The invention belongs to the field of powder material packaging, and particularly relates to a PTA powder horizontal feeding device and a PTA powder horizontal feeding method.
Background
PTA, i.e. refined terephthalic acid, is white powdery crystal at normal temperature, and is mainly packaged by the following steps: ton bag packaging (1.2 tons/bag) and bulk tankers; the domestic PTA market is over-supplied and competitive, export becomes a necessary choice, and according to international convention, export PTA needs to be transported by using 20-ruler containers.
The existing technological conditions are as follows: the PTA powder is packed by a ton bag through a packer, and is transported by a 20-ruler container during export, namely, 20 bags/24 tons are packed in each container by a forklift, the packing speed is low, more than 30 minutes are needed for each container, the transportation efficiency is low, a large amount of manpower and material resources are needed to be consumed, and the transportation cost is high.
Disclosure of Invention
In order to solve the problems of low cabinet loading speed, low transportation efficiency and high packaging cost of the existing PTA powder packing and conveying mode.
The technical scheme of the invention is as follows:
the PTA powder horizontal feeding device comprises a feeding module and a wagon balance for measuring the weight of a container, wherein the feeding module comprises a finished product bin and a feeding pipe, the upper end of the feeding pipe is connected with the bottom of the finished product bin, a valve for controlling the on-off state and the flow speed of materials is arranged in the middle of the feeding pipe, and the lower end of the feeding pipe stretches into the container.
Preferably, the valve comprises a manual knife valve or a pneumatic knife valve.
Preferably, the dust remover further comprises an exhaust pipe, wherein the exhaust pipe is communicated with the dust remover, the tail end of the exhaust pipe extends into the container, the exhaust pipe is further communicated with an emptying tank, and the dust remover is provided with a dust removing hand valve and a pneumatic ball valve.
Preferably, a filter box is arranged in the feed pipe, the filter box is communicated with a gas blowing pipe line, a hand valve is arranged on the gas blowing pipe line, and the gas blowing pipe line is connected with a nitrogen source through a pipeline.
Preferably, the air blowing pipeline is also provided with an air charging branch, the air outlet end of the air charging branch is communicated with the lower end of the feeding pipe, and the air charging branch is provided with an air charging hand valve and a pneumatic butterfly valve.
Preferably, a bag holder is arranged at the tail end of the feeding pipe, and a bag holder is arranged on the exhaust pipe.
Preferably, the device further comprises a PLC control module, and the feeding module, the dust remover, the inflating branch and the wagon balance are connected with the PLC control module.
The PTA powder horizontal feeding method is realized by the device, and comprises the following steps:
step 1: the vehicle is stopped on a wagon balance with a container provided with a lining bag, the wagon balance is empty, parameters of the wagon balance are set before inflation, the parameters comprise a feeding amount target value A, an advance B, a feeding amount target value C and an advance D, the feeding amount target value C is larger than the feeding amount target value A, at the moment, all pneumatic valves are closed, except that a manual valve is in a closed state, a manual gate valve, a dust removal manual valve and an inflation manual valve are all in a normally open state, and a bag clamping device is in a clamping state;
step 2: opening a pneumatic butterfly valve to inflate the lining bag in the container;
step 3: after the inflation is finished, the pneumatic butterfly valve is closed, and the inflation is stopped; opening the pneumatic ball valve 41 to start exhausting;
step 4: opening a pneumatic knife switch valve to start feeding;
step 5: the feeding amount reaches a feeding amount target value A, and the opening degree of the pneumatic knife switch valve is reduced;
step 6: the feeding amount reaches a feeding amount target value C, a pneumatic knife switch valve is closed firstly, and after the pneumatic knife switch valve is closed, a pneumatic butterfly valve is opened to purge a feeding pipe;
step 7: all the components are closed, the bag holder is loosened, feeding is completed, and the weight of the vehicle is increased.
Preferably, in step 4, if an emergency stop of the feed is required during the feed, the pneumatic knife valve is closed.
Preferably, when the filter box is blocked, the manual valve is opened manually to purge the filter box.
Compared with the prior art, the invention has at least one of the following beneficial effects:
(1) The PTA powder horizontal feeding device and the method thereof designed by the invention increase the transportation quantity, improve the cabinet loading speed and save the material flow cost of product packaging, customs clearance, sea freight and the like under the condition of unchanged container cost.
(2) In the embodiment of the invention, the fully-closed operation of loading and unloading is designed, so that dust pollution is avoided, and the environment is protected; replaces the traditional package, reduces the environmental pollution caused by the waste and treatment of the package.
(3) In the embodiment of the invention, by designing the totally-enclosed operation, the direct contact between a person and a product is avoided, and the health of an operator is ensured to the greatest extent; only one-time loading and unloading is needed, so that possible goods loss and goods difference in the loading and unloading operation link are avoided; waterproof, dampproofing, guarantee product quality.
(4) In the embodiment of the invention, the loading time of a 20-ruler container is 30 minutes (if the bag hanging time and the reversing time are not counted, the average time from the empty car weighing, the loading to the heavy car weighing is 10 minutes, wherein the actual feeding time is 2.5 min/cabinet), and the efficiency is high; the container is suitable for transportation and storage, can be piled up in a wharf through a container, and can be transported at any time as required.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view showing partial structures of the ends of a feed pipe and an exhaust pipe according to an embodiment of the present invention;
in the figure: 1-finished product bin, 2-feeding pipe, 21-manual knife valve, 22-pneumatic knife valve, 23-filter box, 3-gas blowing pipeline, 31-hand valve, 32-ball valve, 4-dust remover, 41-pneumatic ball valve, 42-dust removing hand valve, 43-exhaust pipe, 44-emptying tank, 5-inflating branch, 51-inflating hand valve, 52-pneumatic butterfly valve, 6-bag holder and 7-wagon balance.
Detailed Description
The invention will now be described in detail with reference to the drawings and to specific embodiments.
Referring to fig. 1, in the embodiment of the invention, the PTA powder horizontal feeding device comprises a feeding module and a wagon balance 7 for measuring the weight of a container, wherein the feeding module comprises a finished product bin 1 and a feeding pipe 2, the upper end of the feeding pipe 2 is connected with the bottom of the finished product bin 1, a valve for controlling the on-off and flow rate of materials is arranged in the middle of the feeding pipe 2, and the lower end of the feeding pipe 2 stretches into the container.
With continued reference to fig. 1, the valves include a manual guillotine valve 21, a pneumatic guillotine valve 22.
With continued reference to fig. 1, the dust collector further includes an exhaust pipe 43, the exhaust pipe 43 is connected to the dust collector 4, the tail end of the exhaust pipe 4 extends into the container, the exhaust pipe 43 is further connected to an emptying tank 44, and the dust collector 4 is provided with a dust removing hand valve 42 and a pneumatic ball valve 41. The end of the exhaust pipe 43 is connected into the liner bag in the container, so that the nitrogen in the liner bag can be pumped out for exhaust.
In the embodiment of the invention, when the dust remover 4 works, nitrogen in the liner bag is pumped out for depressurization, and in order to prevent the liner bag from being incapable of depressurization due to the dust remover failure, the nitrogen in the liner bag is discharged to the emptying tank 44 through the line 2.
With continued reference to fig. 1, a filter box 23 is disposed in the feed pipe, the filter box 23 is communicated with a gas blowing pipeline 3, the gas blowing pipeline 3 is provided with a hand valve 31, and the gas blowing pipeline 3 is connected with a nitrogen source through a pipeline; the filter box 23 has a sieve inside, and the mesh of the sieve is 7.4 x 26mm.
The air blowing pipeline 3 is also provided with an air charging branch 5, the air outlet end of the air charging branch 5 is communicated with the lower end of the feeding pipe 2, and the air charging branch 5 is provided with an air charging hand valve 51 and a pneumatic butterfly valve 52.
The end of the feeding pipe 2 is provided with a bag clamping device 6, the exhaust pipe 43 is provided with the bag clamping device 6, and the feeding pipe 2 and the exhaust pipe 43 are in clamping connection with a lining bag in a container through the bag clamping device 6, so that the system is in a sealing state, and powder and nitrogen are prevented from overflowing.
In addition, in the embodiment of the invention, the device further comprises a PLC control module, wherein the feeding module, the dust remover 4, the inflating branch 5 and the wagon balance 7 are connected with the PLC control module for signal interaction.
The invention is further described with reference to the following specific examples:
a PTA powder horizontal feeding method comprising the steps of:
step 1: the vehicle is stopped on the wagon balance 7 with the container with the lining bag mounted, the empty wagon is weighed, parameters of the wagon balance 7 are set before inflation, the parameters comprise a feeding amount target value A, an advance B, a feeding amount target value C and an advance D, the feeding amount target value C is larger than the feeding amount target value A, at the moment, all pneumatic valves are closed, except that a hand valve 31 is in a closed state, the rest valves needing to be manually opened and closed, namely a hand knife valve 21, a dust removal hand valve 42 and an inflation hand valve 51 are all in a normally opened state, and a bag clamping device is in a clamping state;
the feed amount target value A is 18.00 tons and the advance B is 100 kg; the feed rate target value C was 26.80 tons and the advance D was 1000 kg.
Step 2: opening a pneumatic butterfly valve 52 to inflate the container liner bag;
step 3: after the inflation is completed, the pneumatic butterfly valve 52 is closed, and the inflation is stopped; opening the pneumatic ball valve 41 to start exhausting;
step 4: opening the pneumatic knife valve 22 to begin feeding;
step 5: the opening of the pneumatic knife valve 22 is reduced when the feeding amount reaches 18.00 tons; the opening degree is reduced from 100% to 30%.
Referring to fig. 1, step 6: when the feeding amount reaches 25.8 tons, firstly closing the pneumatic knife switch valve 22 to stop discharging, opening the pneumatic butterfly valve 52 to purge the feeding pipe after the pneumatic knife switch valve 22 is closed, and blowing the PTA powder staying at the tail end of the feeding pipe into a container;
step 7: all the components are closed, the bag holder 6 is released, feeding is completed, and the truck is weighed.
In step 4, if an emergency stop of the feed is required during the feed, the air knife valve 22 is closed.
When the filter box 23 is blocked, the hand valve 31 is opened manually to purge the filter box 23.
In the invention, the feeding pipe 2 is divided into a vertical section, an elbow section and a horizontal section from top to bottom, the bottom of the finished product bin 1 is connected with the vertical section of the feeding pipe 2, the vertical section is communicated with the elbow section, and the elbow section is communicated with the horizontal section; the radius R of the elbow section is more than 1.2m, and the length of the horizontal section is 1.5-2.3 m; the material is SUS304 stainless steel, the horizontal section is 10 "(inches).
Referring to fig. 1, in the embodiment of the present invention, the exhaust pipe 43 is made of SUS304 stainless steel, and has a length of 10 "(inches) and is located on the right side of the feed pipe 2, and the center of the feed pipe 2 and the center of the exhaust pipe 43 are at the same height, with a spacing of 850mm.
Referring to fig. 1, the exhaust pipe 43 is connected to a line of the dust collector, and is made of SUS304 stainless steel, 6 "(inches).
The height of the center of the feed pipe 2 and the center of the exhaust pipe 43 is more than or equal to 3400mm from the height of the pound surface of the wagon balance 7.
In the invention, the dust remover 4 is made of SUS304 stainless steel, and the air quantity is 600m 3
/h-800m 3 And/h, the wind pressure is more than or equal to 6500Pa, the filtering efficiency is 0.5-1micron@99.99%, and the dust removing hand valve 42 and the pneumatic ball valve 41 are arranged.
In the invention, the loading and unloading are totally-enclosed operation, so that dust pollution is avoided, and the environment is protected; replaces the traditional package, reduces the environmental pollution caused by the waste and treatment of the package.
In a word, the PTA powder horizontal feeding device and the method thereof designed by the invention increase the transportation capacity, improve the cabinet loading speed and save the material flow cost of product packaging, customs clearance, sea freight and the like under the condition of unchanged container cost; the direct contact between the person and the product is avoided, and the health of the operator is ensured to the greatest extent; only one-time loading and unloading is needed, so that possible goods loss and goods difference in the loading and unloading operation link are avoided; waterproof, dampproofing, guarantee product quality.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
- The PTA powder horizontal feeding device is characterized by comprising a feeding module and a wagon balance for measuring the weight of a container, wherein the feeding module comprises a finished product bin and a feeding pipe, the upper end of the feeding pipe is connected with the bottom of the finished product bin, a valve for controlling the on-off state and the flow rate of materials is arranged in the middle of the feeding pipe, and the lower end of the feeding pipe stretches into the container.
- 2. The PTA powder horizontal feed device according to claim 1, wherein the valve comprises a manual knife valve, a pneumatic knife valve.
- 3. The PTA powder horizontal feeding device according to claim 2, further comprising an exhaust pipe, wherein the exhaust pipe is communicated with a dust remover, the tail end of the exhaust pipe extends into the container, the exhaust pipe is also communicated with an emptying tank, and the dust remover is provided with a dust removing hand valve and a pneumatic ball valve.
- 4. The PTA powder horizontal feeding device according to claim 3, wherein a filter box is arranged in the feeding pipe, the filter box is communicated with a gas blowing pipe, a hand valve is arranged on the gas blowing pipe, and the gas blowing pipe is connected with a nitrogen source through a pipeline.
- 5. The horizontal PTA powder feeding device according to claim 4, wherein an inflating branch is further arranged on the air blowing pipe, an air outlet end of the inflating branch is communicated with the lower end of the feeding pipe, and an inflating hand valve and a pneumatic butterfly valve are arranged on the inflating branch.
- 6. The PTA powder horizontal feeding device according to claim 5, wherein a bag holder is provided at a tip of the feeding pipe, and a bag holder is provided at a tip of the exhaust pipe.
- 7. The PTA powder horizontal feeding device according to claim 2, further comprising a PLC control module, wherein the feeding module, the dust remover, the aeration branch, and the wagon balance are connected with the PLC control module.
- A PTA powder horizontal feeding method, which is realized by the PTA powder horizontal feeding device according to claim 6, characterized in that the method comprises the following steps:step 1: the vehicle is stopped on a wagon balance with a container provided with a lining bag, the wagon balance is empty, parameters of the wagon balance are set before inflation, the parameters comprise a feeding amount target value A, an advance B, a feeding amount target value C and an advance D, the feeding amount target value C is larger than the feeding amount target value A, at the moment, all pneumatic valves are closed, except that a manual valve is in a closed state, a manual gate valve, a dust removal manual valve and an inflation manual valve are all in a normally open state, and a bag clamping device is in a clamping state;step 2: opening a pneumatic butterfly valve to inflate the lining bag in the container;step 3: after the inflation is finished, the pneumatic butterfly valve is closed, and the inflation is stopped; opening the pneumatic ball valve and starting to exhaust;step 4: opening a pneumatic knife switch valve to start feeding;step 5: the feeding amount reaches a feeding amount target value A, and the opening degree of the pneumatic knife switch valve is reduced;step 6: the feeding amount reaches a feeding amount target value C, a pneumatic knife switch valve is closed firstly, and after the pneumatic knife switch valve is closed, a pneumatic butterfly valve is opened to purge a feeding pipe;step 7: all the components are closed, the bag holder is loosened, feeding is completed, and the weight of the vehicle is increased.
- 9. The PTA powder horizontal feeding method according to claim 8, wherein in step 4, if an emergency stop of feeding is required during feeding, the pneumatic knife valve is closed.
- 10. The PTA powder horizontal feeding method according to claim 8, wherein when the filter box is blocked, a hand valve is manually opened to purge the filter box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310867003.4A CN116654339A (en) | 2023-07-14 | 2023-07-14 | PTA powder horizontal feeding device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310867003.4A CN116654339A (en) | 2023-07-14 | 2023-07-14 | PTA powder horizontal feeding device and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116654339A true CN116654339A (en) | 2023-08-29 |
Family
ID=87717275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310867003.4A Pending CN116654339A (en) | 2023-07-14 | 2023-07-14 | PTA powder horizontal feeding device and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116654339A (en) |
-
2023
- 2023-07-14 CN CN202310867003.4A patent/CN116654339A/en active Pending
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