Accurate feeding device for small kettle production

Abstract

The utility model discloses a small kettle production accurate feeding device which comprises a production device, the production device comprises a raw material storage tank, a metering tank, a raw material discharge pump, a raw material discharge pipeline, a first valve on the raw material discharge pipeline, a second valve, a metering tank bottom valve, a large reaction kettle connected with the first valve, and a small reaction kettle connected with the metering tank, wherein the reaction kettle is wrapped with a first thermal insulation cotton assembly. According to the accurate production feeding device, the problems of more manual feeding and low production efficiency caused by the fact that a small reaction kettle cannot directly use a storage tank for ramming materials are solved, the production efficiency of a large reaction kettle is not influenced, automatic feeding of the large kettle and automatic feeding of the small kettle can be met, the feeding amount is accurate, the problem of large feeding amount deviation does not exist, and the production efficiency is improved. Small-scale test production is more convenient and accurate, and the device is very suitable for factories with large yield, strong independent research and development capability and many small-scale test products.

Description

Technical Field

[0001] The utility model relates to the technical field of precise feeding, in particular to a precise feeding device for small kettle production. Background Art

[0002] With the rapid development of technology, automated production technology has been widely used in industrial production. The use of automated technology can not only liberate people from heavy physical labor and dangerous working environments, but also greatly improve production efficiency. Currently, the most widely used automated technology in the chemical industry is storage tank material storage. Using batch control programs for automatic feeding and temperature control can greatly reduce manual feeding. However, the automated feeding equipment currently used in industry still has defects. When the feeding amount is small, the flowmeter has a large measurement deviation and is inconvenient to use; while using a metering pump with relatively accurate metering has a low efficiency.

[0003] Therefore, it is necessary to design and transform the reaction kettle to effectively prevent the phenomenon that when the feeding amount is small, the flowmeter has a large measurement deviation and is inconvenient to use. Content of the Utility Model

[0004] To solve the problems raised in the above background art, the purpose of the present utility model is to provide a precise feeding device for small kettle production, which solves the problems of large measurement deviation of the existing automated feeding technology and inability to use when the feeding amount is small, and provides a precise feeding device for small kettle production, which can meet the production efficiency requirements during large kettle production and the precise metering requirements during small kettle production.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A precise feeding device for small kettle production, including a production device, the production device includes a raw material storage tank, a metering tank, a raw material discharge pump, a raw material discharge pipeline, a first valve, a second valve, a bottom valve of the metering tank on the raw material discharge pipeline, a large reaction kettle connected to the first valve, and a small reaction kettle connected to the metering tank;

[0006] The reaction kettle is wrapped with a first heat insulation cotton assembly. The outer side wall of the reaction kettle is provided with a first medium pipe with a heat medium or cold medium flowing through its inner cavity around the circumference of the reaction kettle. The first medium pipe is located between the reaction kettle and the first heat insulation cotton assembly; the raw material storage tank is wrapped with a second heat insulation cotton assembly. The outer side wall of the raw material storage tank is provided with a second medium pipe with a heat medium flowing through its inner cavity around the circumference of the raw material storage tank. The second medium pipe is located between the raw material storage tank and the second heat insulation cotton assembly; the metering tank is wrapped with a third heat insulation cotton assembly. The outer side wall of the metering tank is provided with a third medium pipe with a heat medium flowing through its inner cavity around the circumference of the metering tank. The third medium pipe is located between the metering tank and the third heat insulation cotton assembly.

[0007] Preferably, the small reactor and the metering tank are arranged vertically, and the small reactor and the large reactor are arranged horizontally.

[0008] Preferably, a first valve and a second valve are arranged in the middle of the raw material discharge pipeline, and a third valve is arranged at the bottom of the metering tank.

[0009] Preferably, the raw material discharge pump is a gear pump. The gear pump is connected to the large reactor and the metering tank through the raw material discharge pipeline. The large reactor and the metering tank are fed through the gear pump, and the small reactor is fed through the metering tank.

[0010] Preferably, a mass flowmeter connected by electric connection is further included on the raw material discharge pipeline. During the production process, the feeding amount of the large reactor and the feeding amount of the metering tank are controlled according to the indication of the mass flowmeter. The metering tank further includes a weighing module connected by electric connection. During the production process, the feeding amount of the small reactor is controlled according to the indication of the weighing module.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The precise production feeding device of the present utility model solves the problem that the small reactor cannot directly use the storage tank for feeding, resulting in a large amount of manual feeding and low production efficiency, and does not affect the production efficiency of the large reactor. It can not only meet the automatic feeding of the large reactor, but also meet the automatic feeding of the small reactor, and the feeding amount is accurate, without the problem of large deviation in the feeding amount. Small-scale production is more convenient and accurate, and it is very suitable for factories with large production volume, strong independent R & D ability and many small-scale test products.

[0013] 2. By adopting the production feeding device of the present utility model, the production efficiency of automatic feeding of the large reactor can be improved, and the automatic feeding production of the small reactor can be accurately carried out. While improving the production efficiency, the manual feeding is reduced. The control system operates automatically, which not only reduces the labor cost, but also is simple and convenient to operate. The large reactor and the small reactor are separately metered, which can further ensure the accuracy of feeding, and it is very suitable for large chemical plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a front view of the raw material discharge pump of the present utility model;

[0016] Figure 3 is the present utility model Figure 1 Partial enlarged view of A in.

[0017] In the figure: 1. Raw material storage tank; 2. Raw material discharge pump; 3. First valve; 4. Second valve; 5. Metering tank; 6. Third valve; 7. Large reaction kettle; 8. Small reaction kettle. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figures 1 to 3 shown, a precise feeding device for small kettle production provided by the present invention includes a production device, and the production device includes a raw material storage tank 1, a metering tank 5, a raw material discharge pump 2, a raw material discharge pipeline, a first valve 3 and a second valve 4 on the raw material discharge pipeline, a bottom valve of the metering tank 5, a large reaction kettle 7 connected to the first valve 3, and a small reaction kettle 8 connected to the metering tank 5;

[0020] The reaction kettle is wrapped with a first heat insulation cotton assembly. A first medium pipe with a heat medium or cold medium flowing through its inner cavity is wound around the outer side wall of the reaction kettle along the circumferential direction of the reaction kettle. The first medium pipe is located between the reaction kettle and the first heat insulation cotton assembly; the raw material storage tank 1 is wrapped with a second heat insulation cotton assembly. A second medium pipe with a heat medium flowing through its inner cavity is wound around the outer side wall of the raw material storage tank 1 along the circumferential direction of the raw material storage tank 1. The second medium pipe is located between the raw material storage tank 1 and the second heat insulation cotton assembly; the metering tank 5 is wrapped with a third heat insulation cotton assembly. A third medium pipe with a heat medium flowing through its inner cavity is wound around the outer side wall of the metering tank 5 along the circumferential direction of the metering tank 5. The third medium pipe is located between the metering tank 5 and the third heat insulation cotton assembly. The first heat insulation cotton assembly, the second heat insulation cotton assembly, and the third heat insulation cotton assembly respectively include heat insulation cotton and carriers for installing the heat insulation cotton. The heat medium flowing through the first medium pipe, the second medium pipe, and the third medium pipe is steam, and the cold medium is water at 10 - 25 °C.

[0021] Refer to Figure 1 , the small reaction kettle 8 and the metering tank 5 are in an up-and-down structure, and the small reaction kettle 8 and the large reaction kettle 7 are in a left-and-right structure.

[0022] Refer to Figure 1 , a first valve 3 and a second valve 4 are arranged in the middle of the raw material discharge pipeline, and a third valve 6 is arranged at the bottom of the metering tank 5.

[0023] Refer to Figure 1 , the raw material discharge pump 2 is a gear pump. The gear pump is connected to the large reaction kettle 7 and the metering tank 5 through the raw material discharge pipeline. The large reaction kettle 7 and the metering tank 5 are fed through the gear pump, and the small reaction kettle 8 is fed through the metering tank 5.

[0024] Reference Figure 1 , a mass flowmeter is also included on the raw material discharge pipeline, which is electrically connected. During the production process, the feeding amount of the large reactor 7 and the feeding amount of the metering tank 5 are controlled by the indication of the mass flowmeter. The metering tank 5 also includes a weighing module that is electrically connected. During the production process, the feeding amount of the small reactor 8 is controlled by the indication of the weighing module. The first valve 3, the second valve 4, and the third valve 6 are all pneumatic on-off valves. The production device also includes a control system that is electrically connected to the first valve 3, the second valve 4, and the third valve 6. The control system is also electrically connected to the gear pump, the mass flowmeter, and the weighing module respectively. The raw material storage tank 1, the metering tank 5, the size and quantity of the reactors can be selected according to the production scale. The same metering tank 5 can be connected to multiple small reactors 8. A manual valve is installed at the feeding port of the small reactor 8, so there is no need to worry about the problem of misfeeding materials into the wrong reactor. The same raw material storage tank 1 can be connected to multiple large reactors 7, but the raw material storage tank 1 and the metering tank 5 can only correspond one by one to prevent material mixing.

[0025] The working principle and usage process of the present utility model: The operator sets the automatic feeding program through the control system, and selects different automatic feeding programs according to the size of the reactor. When selecting the automatic feeding program for the large reactor 7, close the second valve 4, and then start the first valve 3 and the raw material discharge pump 2 in sequence. The required raw materials are pumped into the large reactor 7 through the raw material discharge pipeline. The cumulative metering of the materials is realized through the mass flowmeter. When the count of the mass flowmeter reaches the set value, close the raw material discharge pump 2 and the first valve 3 in sequence, and the feeding of the large reactor is completed. When selecting the automatic feeding program for the small reactor 8, close the first valve 3 and the third valve 6, and then start the second valve 4 and the raw material discharge pump 2 in sequence. The required raw materials are pumped into the metering tank 5 through the raw material discharge pipeline. The cumulative metering of the materials is realized through the mass flowmeter. When the count of the mass flowmeter reaches the set value, close the raw material discharge pump 2 and the second valve 4 in sequence. After the feeding of the metering tank 5 is completed, open the third valve 6, and the materials in the metering tank 5 flow into the small reactor 8 by gravity. The cumulative metering of the materials is realized through the weighing module on the metering tank 5. When the indication of the weighing module reaches the set value, close the third valve 6, and the feeding of the small reactor is completed.

[0026] In summary: For this precise feeding device for small reactor production, the precise production feeding device of the present utility model solves the problem that the small reactor cannot directly use the storage tank for feeding, resulting in a large amount of manual feeding and low production efficiency, and does not affect the production efficiency of the large reactor. It can not only meet the automatic feeding of the large reactor but also meet the automatic feeding of the small reactor, and the feeding amount is accurate, without the problem of large deviation in the feeding amount. The small-scale production is more convenient and accurate, and it is very suitable for factories with large production volume, strong independent R & D ability, and a large number of small-scale test products, solving the problems of large metering deviation in the existing automatic feeding technology and inability to use when the feeding amount is small.

[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small kettle production accurate feeding device, comprising a production device, characterized in that: The production device comprises a raw material storage tank (1), a metering tank (5), a raw material discharge pump (2), a raw material discharge pipeline, a first valve (3) on the raw material discharge pipeline, a second valve (4), a bottom valve of the metering tank (5), a large reaction kettle (7) connected to the first valve (3), and a small reaction kettle (8) connected to the metering tank (5); The reactor is wrapped with a first thermal insulation cotton component, and a first medium pipe with a hot medium or a cold medium flowing in the inner cavity is arranged around the outer wall of the reactor along the circumference of the reactor, and the first medium pipe is located between the reactor and the first thermal insulation cotton component; the raw material storage tank (1) is wrapped with a second thermal insulation cotton component, and a second medium pipe with a hot medium flowing in the inner cavity is arranged around the outer wall of the raw material storage tank (1) along the circumference of the raw material storage tank (1), and the second medium pipe is located between the raw material storage tank (1) and the second thermal insulation cotton component; the metering tank (5) is wrapped with a third thermal insulation cotton component, and a third medium pipe with a hot medium flowing in the inner cavity is arranged around the outer wall of the metering tank (5) along the circumference of the metering tank (5), and the third medium pipe is located between the metering tank (5) and the third thermal insulation cotton component.

2. According to claim 1, a small kettle production accurate feeding device is characterized by: The small reactor (8) and the metering tank (5) are of an up-and-down structure, and the small reactor (8) and the large reactor (7) are of a left-and-right structure.

3. The small kettle production accurate feeding device according to claim 1 is characterized by: A first valve (3) and a second valve (4) are arranged in the middle of the raw material discharge pipeline, and a third valve (6) is arranged at the bottom of the metering tank (5).

4. The small kettle production accurate feeding device according to claim 1 is characterized by: The raw material discharge pump (2) is a gear pump, and the gear pump is connected to the large reactor (7) and the metering tank (5) through a raw material discharge pipeline. The large reactor (7) and the metering tank (5) are fed through the gear pump, and the small reactor (8) is fed through the metering tank (5).

5. The small kettle production accurate feeding device according to claim 1, characterized in that: The raw material discharge pipeline also includes a mass flow meter connected electrically, and during the production process, the mass flow meter reading is used to control the feeding amount of the large reactor (7) and the feeding amount of the metering tank (5); the metering tank (5) also includes a weighing module connected electrically, and during the production process, the weighing module reading is used to control the feeding amount of the small reactor (8).

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