CN211927064U

CN211927064U - PDI and POCL solution adding device

Info

Publication number: CN211927064U
Application number: CN202021128153.1U
Authority: CN
Inventors: 鄢靖峰
Original assignee: Jingzhou Longhua Petrochemical Co Ltd
Current assignee: Jingzhou Longhua Petrochemical Co Ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2020-11-13
Anticipated expiration: 2030-06-17

Abstract

The utility model provides a PDI and POCL solution adding device, which comprises a storage tank and a loading box, wherein the storage tank and the loading box are used for storing different solutions, the loading box is fixed in the storage tank, the bottom of the storage tank is fixed with a base, the storage tank is provided with a weighing mechanism used for weighing the solution to be conveyed into a reaction kettle, and the weighing mechanism is internally provided with an adding mechanism used for respectively extracting the solution in the storage tank and the loading box and respectively conveying the solution to the reaction kettle; the weighing mechanism is including fixing the fixed frame of open-type at the storage box top, the both sides of fixed frame have all been seted up and have been vertical decurrent opening, fixed frame internal fixation has the appearance of weighing that contacts with the bin. The utility model discloses have and carry out accurate weighing to two kinds of solutions of PDI and POCL, and the addition of two kinds of solutions of effectual control PDI and POCL in getting into reation kettle, and only need an equipment can accomplish the whole flow of adding that separately carries two kinds of solutions of PDI and POCL, saved a large amount of manpower and materials.

Description

PDI and POCL solution adding device

Technical Field

The utility model relates to a solution adds technical field, especially relates to a PDI and POCL solution add device.

Background

Along with the rapid development of science and technology, more and more chemical raw materials or chemical products are developed, the chemical products and the like are processed and manufactured after a plurality of raw materials are matched with a plurality of chemical raw materials, PDI and POCL solution are slowly added through an opening formed in the top of a reaction kettle when being mixed into emulsion, the whole process needs 5-6 hours, PDI is cyclopentadiisocyanate, and POCL is epoxy chloropropane. However, at present, before the PDI and POCL solutions are mixed into the emulsion, the PDI and POCL solutions added into the reaction kettle cannot be weighed, so that the PDI and POCL solutions are easily added too much or too little, and therefore, workers cannot accurately control the addition amount of the PDI and POCL solutions, and at least two devices are needed to separately add the PDI and POCL solutions, thereby increasing the production cost and the labor intensity of the workers.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a PDI and POCL solution add device has solved and can not carry out accurate weighing to PDI and POCL solution that adds into in the reation kettle, leads to the staff can not be accurate to control PDI and POCL solution addition to and need use two equipment to separately add two kinds of solutions of PDI and POCL, increased manufacturing cost and staff intensity of labour's problem.

In order to solve the technical problem, the utility model discloses specifically adopt following technical scheme:

a PDI and POCL solution adding device comprises a storage tank and a loading tank, wherein the storage tank and the loading tank are used for storing different solutions, the loading tank is fixed in the storage tank, a base is fixed at the bottom of the storage tank, a weighing mechanism used for weighing the solution to be conveyed into a reaction kettle is arranged on the storage tank, and an adding mechanism used for respectively extracting the solutions in the storage tank and the loading tank and respectively conveying the solutions into the reaction kettle is arranged in the weighing mechanism;

the weighing mechanism comprises an open type fixing frame fixed at the top of the storage box, openings which are vertically downward are formed in two sides of the fixing frame, a weighing instrument which is in contact with the storage box is fixed in the fixing frame, and two compression plates which are symmetrically distributed in the left-right direction are fixed on the weighing instrument;

the adding mechanism comprises a shell which is connected in a fixed frame in a sliding mode, the bottom of the shell is in contact with the telescopic ends of the two compression plates, a fixed shell used for adding solution in the loading box is fixed in the shell, material pumping pipes are respectively communicated between the shell and the storage box and between the fixed shell and the loading box, a vacuum pump is fixed on the base, a double-end air pumping pipe respectively communicated with the shell and the fixed shell is communicated with the vacuum pump, and a feeding pipe and a material conveying pipe which are communicated with the top of the reaction kettle through an opening are respectively communicated with the shell and the fixed shell; the weighing instrument is provided with a control mechanism for controlling the solution dosage to carry out accurate conveying

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model uses the double-head air exhaust pipe to exhaust the air in the shell and the fixed shell, two different solutions in the storage box and the loading box enter the corresponding shell or the fixed shell through different exhaust pipes, the two solutions have the same entering amount, and with the increase of PDI and POCL solutions in the shell or the fixed shell, the whole weight of the shell is increased and then slides downwards in the fixed frame to compress the compression plate, the weight is displayed on the display panel of the weighing instrument, when the weight on the weighing instrument reaches the specified standard, the control mechanism closes the vacuum pump, stops the extraction of the solution in the storage tank and the loading tank, then the solution in the shell and the fixed shell is conveyed and evenly sprayed into the reaction kettle through the material conveying pipe and the material feeding pipe, the operation is repeatedly carried out, the addition amount of the PDI solution and the POCL solution in the reaction kettle can be accurately controlled. The utility model discloses have and carry out accurate weighing to two kinds of solutions of PDI and POCL, and the addition of two kinds of solutions of effectual control PDI and POCL in getting into reation kettle, and only need an equipment can accomplish the whole flow of adding that separately carries two kinds of solutions of PDI and POCL, saved a large amount of manpower and materials.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a front sectional view of the present invention;

fig. 2 is a side view and sectional structural schematic view of the fixing frame of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a storage tank; 2. a loading bin; 3. a base; 4. a fixing frame; 5. a weighing instrument; 6. a control panel; 7. a compression plate; 8. a screw assembly; 9. a switch; 10. a circular plate; 11. a threaded rod; 12. a threaded pipe; 13. a connecting ring; 14. an opening; 15. a housing; 16. a stationary case; 17. a displacement sensor; 18. a material pumping pipe; 19. a delivery pipe; 20. a feed pipe; 21. a vacuum pump; 22. a double-ended exhaust tube; 23. an electronic valve.

Detailed Description

The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.

As shown in fig. 1-3, the utility model provides a technical solution: a PDI and POCL solution adding device comprises a storage tank 1 and a loading tank 2 which are used for storing different solutions, wherein the loading tank 2 is fixed in the storage tank 1, a base 3 is fixed at the bottom of the storage tank 1, a weighing mechanism used for weighing the solution needing to be conveyed into a reaction kettle is arranged on the storage tank 1, and adding mechanisms used for respectively extracting the solutions in the storage tank 1 and the loading tank 2 and respectively conveying the solutions into the reaction kettle are arranged in the weighing mechanism;

the weighing mechanism comprises an open type fixed frame 4 fixed at the top of the storage box 1, openings 14 which are vertically downward are formed in two sides of the fixed frame 4, a weighing instrument 5 which is in contact with the storage box 1 is fixed in the fixed frame 4, and two compression plates 7 which are symmetrically distributed left and right are fixed on the weighing instrument 5;

the adding mechanism comprises a shell 15 which is connected in a fixed frame 4 in a sliding manner, the bottom of the shell is contacted with the telescopic ends of two compression plates 7, a fixed shell 16 used for adding solution in a loading box 2 is fixed in the shell 15, a pumping pipe 18 is respectively communicated between the shell 15 and a storage box 1 and between the fixed shell 16 and the loading box 2, a vacuum pump 21 is fixed on the base 3, a double-head pumping pipe 22 respectively communicated with the shell 15 and the fixed shell 16 is communicated with the vacuum pump 21, and a feeding pipe 20 and a feeding pipe 19 which are communicated with the top of the reaction kettle through an opening 14 are respectively communicated with the shell 15 and the fixed shell 16; and the weighing instrument 5 is provided with a control mechanism for controlling the solution dosage to carry out accurate conveying.

In the above scheme, as shown in fig. 1 and fig. 3, the control mechanism includes a control panel 6 and a screw assembly 8, the control panel 6 is fixed on the fixing frame 4, the screw assembly 8 is fixed on the weighing instrument 5, a switch 9 for controlling the control panel 6 is fixed at the top of the screw assembly 8, a circular plate 10 is fixedly sleeved below the switch 9, a threaded rod 11 is fixed at the bottom of the casing 15, a threaded pipe 12 connected with threads is sleeved on the threaded rod 11, a connecting ring 13 which is located below the circular plate 10 and is rotatably connected with the threaded pipe 12 is sleeved on the screw assembly 8, and electronic valves 23 controlled by the control panel 6 are respectively installed on the pipeline, the pumping pipe 18, the feeding pipe 20 and the feeding pipe 19 which are communicated with the casing 15 and the fixing shell 16 through the double-head pumping pipe 22. According to the required weight of PDI and POCL solutions, the length of the screw assembly 8 and the position of the connecting ring 13 on the threaded pipe 12 are adjusted, then the PDI and POCL solutions enter the shell 15 and the fixed shell 16 respectively, the shell 15 slides downwards to compress the compression plate 7, when the two solutions in the shell 15 and the fixed shell 16 are loaded to the specified weight respectively, the switch 9 on the screw assembly 8 is pressed down by the bottom of the shell 15, the switch 9 is electrically connected with the control panel 6, the electronic valve 23 on the double-head exhaust pipe 22 and the exhaust pipe 18 is closed by the control panel 6 after the switch 9 is pressed down, the two solutions are stopped being extracted, the electronic valve 23 on the feed pipe 20 and the feed pipe 19 is opened, the solutions in the shell 15 and the fixed shell 16 are sprayed into the reaction kettle, the compression plate 7 starts to recover to push the shell 15 upwards along with the spraying of the solutions, when the two solutions are completely sprayed, the shell 15 recovers to the original position, the connecting ring 13 drives the circular plate 10 upwards to open the switch 9, then the electronic valves 23 on the feeding pipe 20 and the material conveying pipe 19 are closed, the electronic valves 23 on the double-head air suction pipe 22, the shell 15 and the fixed shell 16 are opened, and two solutions are continuously extracted; meanwhile, when only one solution is added according to actual needs, a worker can manually close the corresponding electronic valve 23 and then adjust the screw assembly 8 and the connecting ring 13.

Preferably, the double-end suction pipe 22 is made of a combination of a folding pipe and a steel pipe, the folding pipe is communicated with the vacuum pump 21, the middle parts of the suction pipe 18, the conveying pipe 19 and the feeding pipe 20 are made of folding pipes, the two ends of the suction pipe are made of steel pipes, and the conveying pipe 19 and the feeding pipe 20 penetrate through the opening 14. The double-head exhaust tube 22, the exhaust tube 18, the conveying tube 19 and the feeding tube 20 are made of steel tubes and folding tubes in a combined mode, the up-and-down sliding of the shell 15 cannot be influenced, meanwhile, a pipeline, connected with the shell 15 and the fixed shell 16, of the double-head exhaust tube 22 is in sliding connection with the inner side of the opening 14, the conveying tube 19 and the feeding tube 20 are in sliding connection with the inner side of the other opening 14, and therefore the stability of the double-head exhaust tube 22, the conveying tube 19 and the feeding tube 20 cannot be influenced.

Preferably, a displacement sensor 17 is mounted on the bottom of the housing 15. The displacement sensor 17 can display the distance the housing 15 has moved on the control panel 6, further facilitating the determination of the weight of both the PDI and POCL solutions by the operator.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a PDI and POCL solution adds device, includes storage tank (1) and loading case (2) that are used for storing different solutions, and loading case (2) are fixed in storage tank (1), and storage tank (1) bottom is fixed with base (3), its characterized in that: the storage tank (1) is provided with a weighing mechanism for weighing the solution to be conveyed into the reaction kettle, and the weighing mechanism is internally provided with an adding mechanism for respectively extracting the solution in the storage tank (1) and the solution in the loading tank (2) and respectively conveying the solution into the reaction kettle;

the weighing mechanism comprises an open type fixing frame (4) fixed at the top of the storage box (1), openings (14) which are vertically downward are formed in two sides of the fixing frame (4), a weighing instrument (5) which is in contact with the storage box (1) is fixed in the fixing frame (4), and two compression plates (7) which are symmetrically distributed left and right are fixed on the weighing instrument (5);

the adding mechanism comprises a shell (15) which is connected in a fixed frame (4) in a sliding manner and the bottom of the shell is in contact with the telescopic ends of two compression plates (7), a fixed shell (16) used for adding solution in a loading box (2) is fixed in the shell (15), a material pumping pipe (18) is respectively communicated between the shell (15) and a storage box (1) and between the fixed shell (16) and the loading box (2), a vacuum pump (21) is fixed on a base (3), a double-end air pumping pipe (22) respectively communicated with the shell (15) and the fixed shell (16) is communicated on the vacuum pump (21), and a feeding pipe (20) and a material conveying pipe (19) which are communicated with the top of the reaction kettle through an opening (14) are respectively communicated on the shell (15) and the fixed shell (16); and a control mechanism for controlling the solution dosage to carry out accurate conveying is arranged on the weighing instrument (5).

2. The PDI and POCL solution adding device according to claim 1, characterized in that: the control mechanism comprises a control panel (6) and a screw assembly (8), the control panel (6) is fixed on the fixed frame (4), the screw component (8) is fixed on the weighing instrument (5), a switch (9) for controlling the control panel (6) is fixed at the top of the screw component (8), a circular plate (10) is fixedly sleeved below the switch (9), a threaded rod (11) is fixed at the bottom of the shell (15), a threaded pipe (12) in threaded connection is sleeved on the threaded rod (11), a connecting ring (13) which is positioned below the circular plate (10) and is penetrated through by the threaded pipe (12) and is rotationally connected with the circular plate is sleeved on the screw rod assembly (8), and electronic valves (23) controlled by a control panel (6) are respectively arranged on the pipeline, the pumping pipe (18), the feeding pipe (20) and the feeding pipe (19), which are communicated with the shell (15) and the fixed shell (16), of the double-head pumping pipe (22).

3. The PDI and POCL solution adding device according to claim 1, characterized in that: the double-end exhaust pipe (22) is made of a folding pipe and a steel pipe in a combined mode, the folding pipe is communicated with the vacuum pump (21), the middle portions of the exhaust pipe (18), the conveying pipe (19) and the feeding pipe (20) are made of the folding pipe, the two ends of the exhaust pipe are made of the steel pipe, and the conveying pipe (19) and the feeding pipe (20) penetrate through the opening (14).

4. The PDI and POCL solution adding device according to claim 1, characterized in that: and a displacement sensor (17) is arranged at the bottom of the shell (15).