CN113457565A - Continuous granulation process for powdery chemical products - Google Patents
Continuous granulation process for powdery chemical products Download PDFInfo
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- CN113457565A CN113457565A CN202110677389.3A CN202110677389A CN113457565A CN 113457565 A CN113457565 A CN 113457565A CN 202110677389 A CN202110677389 A CN 202110677389A CN 113457565 A CN113457565 A CN 113457565A
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- 239000000126 substance Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000008569 process Effects 0.000 title claims abstract description 33
- 238000005469 granulation Methods 0.000 title claims abstract description 15
- 230000003179 granulation Effects 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 54
- 239000010959 steel Substances 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000005485 electric heating Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 2
- 239000000428 dust Substances 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 3
- 241000219000 Populus Species 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 241000282414 Homo sapiens Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000009969 flowable effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention belongs to the technical field of granulation processing of chemical products, in particular to a continuous granulation process of powdery chemical products, and provides the following scheme, which comprises a screw extruder, a rotary dripping device and a steel belt cooler: the process for manufacturing chemical products by using the screw extruder, the rotary dripping device and the steel belt cooling machine comprises the following steps: s1: after the screw extruder, the rotary dripping device and the steel belt cooler are sequentially installed; s2: the steel belt cooler, the rotary dripping device and the screw extruder are started firstly, and meanwhile, the screw extruder is started by electric heating or heat conducting oil heating, and the heating temperature is set to be between 105 ℃ and 110 ℃. The invention has the advantages that: the continuous granulation production of the powdery chemical products is realized, the crushing and screening process is cancelled, the dust flying poplar is reduced, and the operation environment is improved.
Description
Technical Field
The invention relates to the technical field of granulation processing processes of chemical products, in particular to a continuous granulation process of powdery chemical products.
Background
The technology of changing the composition and structure of substances or synthesizing new substances by chemical methods belongs to the chemical production technology, namely the chemical process, and the obtained products are called chemicals or chemical products. Originally, the production of such products was performed in manual workshops, later developed into factories, and gradually developed into a specific production industry, i.e., the chemical industry. Chemical engineering is a science for researching the general rule of the production process of chemical products. The relationship between human beings and chemical industry is very close, and some chemical products play epoch-making important roles in the development history of human beings, and the production and the application of the chemical products even represent a certain history stage of human civilization.
The granulation processing technology of many powdery chemical products is to adopt the traditional dry method to carry on the powder material tablet again and break and sieve and get the required irregular granule, the powder material under the sieve is further tableted and broken and then sieve; the whole production process generates large dust, the environmental pollution is serious, and meanwhile, the dust explosion danger exists, and the physical health and life safety of operators are seriously threatened, so a continuous granulating process of powdery chemical products is provided for solving the problems.
Disclosure of Invention
The invention aims to solve the problems that the traditional dry method double-roller tabletting machine is adopted to tablet powder, then the powder is crushed and sieved to obtain required irregular particles, and the sieved powder is further tableted, crushed and sieved; the whole production process generates large dust, the environmental pollution is serious, and meanwhile, the defects that the dust is in danger of deflagration and seriously threatens the health and life safety of operators exist, so the process for continuously granulating the powdery chemical products is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention aims at the defects of the existing solidification process of the powdery chemical product, and provides a process which can process the powdery chemical product into hemispherical uniform particles and has no dust in the production environment through the corresponding claim I. In order to realize the purpose, the following technical scheme is adopted:
a continuous granulating process for powdered chemical products comprises a screw extruder, a rotary dripping device and a steel belt cooler:
the process for manufacturing chemical products by using the screw extruder, the rotary dripping device and the steel belt cooling machine comprises the following steps:
s1: after the screw extruder, the rotary dripping device and the steel belt cooler are sequentially installed;
s2: firstly, starting a steel belt cooler, a rotary dripping device and a screw extruder, simultaneously starting electrical heating or heat conducting oil heating of the screw extruder, and setting the heating temperature between 105 ℃ and 110 ℃;
s3: quantitatively and continuously conveying the powdery chemical product to a feeding port of a screw extruder for 50-60 seconds; the powder is heated and melted in the screw extruder and is pushed into the rotary dripping device through the discharge hole;
s4: chemical products after will melting through rotatory drippage drip are at the annular upper surface of steel band cooler, because surface tension effect forms hemispherical granule, chemical products on the annular steel band move to one end on one side, are cooled and solidified by the spray channel spun atomized water that has business turn over water pipe in the middle of being located the steel band on one side, finally establish under the scraper blade on the other end, directly get into the packing.
Preferably, the screw extruder is provided with a discharge port, the discharge port is connected with an inlet of a rotary dripping device through a pipeline, and the rotary dripping device is arranged at the top of one end of the steel strip cooler.
Preferably, a cylinder with a heating function is arranged on the screw extruder, and the cylinder is heated by adopting electric heating, steam or heat conducting oil.
Preferably, the appearance of the chemical product produced by applying the process is hemispherical particles with the diameter of 2-6 mm.
Preferably, in S2, the steel belt cooler, the rotary dropper and the screw extruder are started first, and at the same time, the electric heating or the heat conducting oil heating of the screw extruder is started and the heating temperature is set to be 105 ℃.
Preferably, in S2, the steel belt cooler, the rotary dropper and the screw extruder are started first, and at the same time, the electric heating or the heat conducting oil heating of the screw extruder is started and the heating temperature is set to be 108 ℃.
Preferably, in S2, the steel belt cooler, the rotary dropper and the screw extruder are started first, and at the same time, the electric heating or the heat conducting oil heating of the screw extruder is started and the heating temperature is set to be between 110 ℃.
In the invention, the continuous granulation process of the powdery chemical product comprises the following steps: the device consists of a screw extruder 1, a rotary dripping device 2 and a steel belt cooler 3, wherein a discharge port 1.2 of the screw extruder 2 is connected with a feed port of the rotary dripping device 2 by a pipeline, the rotary dripping device 2 is arranged above one end of the steel belt cooler 3, as shown in the attached figure I, an upstream powdery chemical product is continuously and quantitatively conveyed into the screw extruder 1 with an external heating function, and the barrel 1.3 of the screw extruder can be heated by adopting one of electric heating, steam or heat conducting oil according to specific conditions, so that the powdery chemical product in the screw extruder 1 is conveyed while being slowly heated by temperature; after the temperature reaches the melting point, the powder is gradually melted into flowable liquid, the flowable liquid is pushed into the rotary dripping device 2 through the screw rod, the chemical products are dripped on the annular upper surface of the steel strip cooling machine 3 through the rotary dripping device 2, hemispherical particles are formed under the action of surface tension, the chemical products on the annular steel strip move towards one end and are cooled and solidified by atomized water sprayed from a water spray groove with a water inlet and outlet pipe in the middle of the steel strip, and finally the chemical products enter the package directly under the scraper blade arranged at the other end. The invention has the advantages that: the continuous granulation production of the powdery chemical products is realized, the crushing and screening process is cancelled, the dust flying poplar is reduced, and the operation environment is improved.
Drawings
Fig. 1 is a schematic structural diagram of a continuous granulation process for a powdery chemical product according to the present invention.
In the figure: 1. a screw extruder; 1.1, a feeding port; 1.2, a discharge hole; 1.3, a cylinder body; 2. rotating the dripper; 3. a steel strip cooler.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
As shown in fig. 1, the continuous granulation process for powdery chemical products of this embodiment includes a screw extruder 1, a rotary dropper 2, a steel belt cooler 3:
the process for manufacturing chemical products by using the screw extruder 1, the rotary dripping device 2 and the steel belt cooler 3 comprises the following steps:
s1: after the screw extruder 1, the rotary dripping device 2 and the steel belt cooler 3 are sequentially installed;
s2: firstly, starting a steel belt cooler 3, a rotary dripping device 2 and a screw extruder 1, simultaneously starting electrical heating or heat conducting oil heating of the screw extruder 1 and setting the heating temperature between 105 ℃;
s3: quantitatively and continuously conveying the powdery chemical product to a feeding port 1.1 of a screw extruder 1 for 50 seconds; the powder is heated and melted in the screw extruder 1 and is pushed into the rotary dripping device 2 through the discharge port 1.2;
s4: chemical products after will melting through rotatory drip ware 2 drip at the annular upper surface of steel band cooler 3, because surface tension effect forms hemispherical granule, chemical products on the annular steel band move to one end on one side, are cooled solidification by the spout spun atomizing water that has the business turn over water pipe in the middle of being located the steel band on one side, finally establish under the scraper blade on the other end, directly get into the packing.
In this embodiment, the screw extruder 1 is provided with a discharge port 1.2, the discharge port 1.2 is connected to an inlet of the rotary dripping device 2 through a pipeline, and the rotary dripping device 2 is installed at the top of one end of the steel strip cooling machine 3.
In this embodiment, the screw extruder 1 is provided with a cylinder 1.3 having a heating function, and the cylinder 1.3 is heated by electric heating, steam or heat conducting oil.
In this embodiment, the chemical products produced by applying the process are hemispherical particles with diameters of 2-6 mm.
In this example, in S2, the steel strip cooler 3, the rotary dropper 2, and the screw extruder 1 are first started, and at the same time, the screw extruder 1 is electrically heated or heat-conductive oil is heated and started, and the heating temperature is set to 105 ℃.
In this embodiment, in S2, the steel strip cooler 3, the rotary dropper 2, and the screw extruder 1 are first started, and at the same time, the screw extruder 1 is started by electrical heating or heat transfer oil heating and the heating temperature is set to 108 ℃.
In this embodiment, in S2, the steel strip cooler 3, the rotary dropper 2, and the screw extruder 1 are first started, and at the same time, the screw extruder 1 is started by electrical heating or heat transfer oil heating and the heating temperature is set to 110 ℃.
Example two
The continuous granulation process for the powdery chemical products comprises a screw extruder 1, a rotary dripping device 2 and a steel belt cooler 3:
the process for manufacturing chemical products by using the screw extruder 1, the rotary dripping device 2 and the steel belt cooler 3 comprises the following steps:
s1: after the screw extruder 1, the rotary dripping device 2 and the steel belt cooler 3 are sequentially installed;
s2: firstly, starting a steel belt cooler 3, a rotary dripping device 2 and a screw extruder 1, simultaneously starting electrical heating or heat conducting oil heating of the screw extruder 1 and setting the heating temperature between 110 ℃;
s3: quantitatively and continuously conveying the powdery chemical product to a feed inlet 1.1 of a screw extruder 1 for 60 seconds; the powder is heated and melted in the screw extruder 1 and is pushed into the rotary dripping device 2 through the discharge port 1.2;
s4: chemical products after will melting through rotatory drip ware 2 drip at the annular upper surface of steel band cooler 3, because surface tension effect forms hemispherical granule, chemical products on the annular steel band move to one end on one side, are cooled solidification by the spout spun atomizing water that has the business turn over water pipe in the middle of being located the steel band on one side, finally establish under the scraper blade on the other end, directly get into the packing.
EXAMPLE III
The production process is implemented as follows: after the equipment is installed according to the technological process of the invention, the steel belt cooler 3, the rotary dripping device 2 and the screw extruder 1 are started in sequence, simultaneously, the screw extruder 1 is started by electric heating or heat conducting oil heating, the heating temperature is set at 105 ℃, secondly, the powdery chemical product is quantitatively and continuously conveyed to the inlet 1.1 of the screw extruder 1 for 50 seconds, the powder is heated and melted in the screw extruder 1 and is pushed into the rotary dripping device 2, the melted chemical products are dripped on the annular upper surface of the steel strip cooler 3 through the rotary dripping device 2, the semi-spherical particles are formed under the action of surface tension, and chemical products on the annular steel belt move towards one end and are cooled and solidified by atomized water sprayed from a water spraying groove with a water inlet and outlet pipe in the middle of the steel belt, and finally enter the package under the scraper blade arranged at the other end.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A continuous granulation process of powdery chemical products comprises a screw extruder (1), a rotary dripping device (2) and a steel belt cooler (3) and is characterized in that,
the process for manufacturing the chemical product by using the screw extruder (1), the rotary dripping device (2) and the steel belt cooler (3) comprises the following steps:
s1: after the screw extruder (1), the rotary dripping device (2) and the steel belt cooler (3) are sequentially installed;
s2: firstly, starting a steel belt cooler (3), a rotary dripping device (2) and a screw extruder (1), simultaneously starting electrical heating or heat conducting oil heating of the screw extruder (1) and setting the heating temperature between 105 ℃ and 110 ℃;
s3: quantitatively and continuously conveying the powdery chemical product to a feeding port (1.1) of a screw extruder (1) for 50-60 seconds; the powder is heated and melted in the screw extruder (1) and is pushed into the rotary dripping device (2) through the discharge port (1.2);
s4: chemical products after melting are dripped on the annular upper surface of the steel strip cooling machine (3) through the rotary dripping device (2), hemispherical particles are formed under the action of surface tension, the chemical products on the annular steel strip move towards one end and are cooled and solidified by atomized water sprayed from a water spraying groove with a water inlet and outlet pipe in the middle of the steel strip, and finally the chemical products enter into a package under the action of a scraper blade on the other end.
2. A continuous granulation process for powdery chemical products according to claim 1, wherein the screw extruder (1) is provided with a discharge port (1.2), the discharge port (1.2) is connected to the inlet of the rotary dropper (2) through a pipeline, and the rotary dropper (2) is installed on the top of one end of the steel belt cooler (3).
3. The continuous granulating process of powdery chemical products according to claim 1, wherein the screw extruder (1) is provided with a cylinder (1.3) with a heating function, and the cylinder (1.3) is heated by electric heating, steam or heat-conducting oil.
4. The continuous granulating process of powdery chemical products according to claim 1, wherein the chemical products produced by the process are hemispherical granules with diameters of 2-6 mm.
5. The process for continuously granulating powdered chemical products according to claim 1, wherein in S2, the steel belt cooler (3), the rotary dropper (2) and the screw extruder (1) are first started, and simultaneously the electric heating or the heat conducting oil heating of the screw extruder (1) is started and the heating temperature is set to be between 105 ℃.
6. The process for continuously granulating powdered chemical products according to claim 1, wherein the steel belt cooler (3), the rotary dropper (2) and the screw extruder (1) are first started in S2, and simultaneously the electric heating or the heat conducting oil heating of the screw extruder (1) is started and the heating temperature is set to be between 108 ℃.
7. The process for continuously granulating powdered chemical products according to claim 1, wherein the steel belt cooler (3), the rotary dropper (2) and the screw extruder (1) are first started in S2, and simultaneously the electric heating or the heat conducting oil heating of the screw extruder (1) is started and the heating temperature is set to be between 110 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110677389.3A CN113457565A (en) | 2021-06-18 | 2021-06-18 | Continuous granulation process for powdery chemical products |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110677389.3A CN113457565A (en) | 2021-06-18 | 2021-06-18 | Continuous granulation process for powdery chemical products |
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| Publication Number | Publication Date |
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| CN113457565A true CN113457565A (en) | 2021-10-01 |
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| CN202110677389.3A Pending CN113457565A (en) | 2021-06-18 | 2021-06-18 | Continuous granulation process for powdery chemical products |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115026968A (en) * | 2022-06-30 | 2022-09-09 | 山西农业大学 | Method and device for recycling polymer resin |
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