CN213493571U

CN213493571U - Adding device of polymer polyether polyol initiator

Info

Publication number: CN213493571U
Application number: CN202021994893.3U
Authority: CN
Inventors: 张世磊
Original assignee: Wudi Dexin Chemical Co ltd
Current assignee: Wudi Dexin Chemical Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-22
Anticipated expiration: 2030-09-14

Abstract

The utility model relates to the technical field of polyether polyol, and discloses a polymer polyether polyol initiator adding device, which comprises a feeding tank and a transfer tank, wherein the upper end of the feeding tank is provided with a cover plate, the cover plate is connected with one end of an air inlet pipe, the lower end of the feeding tank is connected with a reaction tank through an inlet pipe, the transfer tank is connected with the reaction tank through a connecting pipe, the upper end of the transfer tank is provided with an air inlet, the lower end of the transfer tank is provided with a liquid outlet, the transfer tank is also connected with the inlet end of a vacuum pump, when the device is used, the transfer tank is firstly vacuumized, then a valve on the connecting pipe is opened, the pressure inside the reaction tank is reduced, then the air inlet pipe is connected with a nitrogen pipeline, the initiator is pressed into the reaction tank through high-pressure nitrogen, the pressure of the reaction tank is reduced before the initiator is added, so that the initiator can be added, the operation safety is effectively improved.

Description

Adding device of polymer polyether polyol initiator

Technical Field

The utility model relates to a polyether polyol technical field especially relates to an add device of polymer polyether glycol initiator.

Background

POP is a product obtained by dispersing and polymerizing vinyl monomers in downstream polyether polyol in the presence of a dispersing agent, is an improved variety of polyether polyol, and can greatly improve the strength and toughness of a polyether polyol product, so that the human body comfort of the product is greatly improved.

In the production of POP, an initiator is added to initiate polymerization of the monomers. At present, azo compounds are most commonly used, and the azo compounds are characterized by high activity, and can be decomposed to generate gas when being heated, knocked violently, and the like. In a specific use process, air isolation is needed, when the initiator is added, nitrogen is generally used for pressing the initiator into a reaction tank, and when the nitrogen pressure is too high, certain danger is generated, which provides a problem for safe use of the initiator, so that an adding device of the polymer polyether polyol initiator is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a device for adding a polymer polyether polyol initiator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an adding device of polymer polyether polyol initiator, is including adding the jar and transit tank, add the upper end of material jar and install the apron, be connected with the one end of intake pipe on the apron, the lower extreme that adds the material jar is connected with the retort through the inlet pipe, transit tank is connected with the retort through the connecting pipe, transit tank's upper end is provided with the air inlet, transit tank's lower extreme is provided with the leakage fluid dram, transit tank still is connected with the entrance point of vacuum pump.

Preferably, the outer wall of the transit tank is fixedly provided with uniformly distributed radiating fins.

Preferably, a pressure gauge is installed on the transfer tank.

Preferably, the outlet end of the vacuum pump is connected with one end of a purification box, activated carbon is placed in the purification box, and the other end of the purification box is provided with an exhaust port.

Preferably, the inlet pipe, the air inlet pipe, the connecting pipe, the air inlet and the liquid outlet are all provided with valves.

The utility model has the advantages that: when the device is used, the transfer tank is firstly vacuumized, then the valve on the connecting pipe is opened, the pressure inside the reaction tank is reduced, then the air inlet pipe is connected with the nitrogen pipeline, the initiator is pressed into the reaction tank through high-pressure nitrogen, and the pressure of the reaction tank is reduced before the initiator is added, so that the initiator can be added under the condition of small nitrogen pressure, and the operation safety is effectively improved.

Drawings

Fig. 1 is a schematic structural view of a feeding device of a polymer polyether polyol initiator according to the present invention;

fig. 2 is a schematic structural diagram of a purification box of a device for adding a polymer polyether polyol initiator according to the present invention.

In the figure: 1 charging tank, 2 feeding pipes, 3 air inlet pipes, 4 reaction tanks, 5 connecting pipes, 6 transfer tanks, 7 air inlets, 8 liquid discharge ports, 9 vacuum pumps, 10 purification boxes and 11 radiating fins.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an adding device of polymer polyether polyol initiator, including adding jar 1 and transfer tank 6, add the upper end of jar 1 and install the apron, be connected with the one end of intake pipe 3 on the apron, the lower extreme of adding jar 1 is connected with retort 4 through inlet pipe 2, transfer tank 6 is connected with retort 4 through connecting pipe 5, the upper end of transfer tank 6 is provided with air inlet 7, the lower extreme of transfer tank 6 is provided with leakage fluid dram 8, transfer tank 6 still is connected with vacuum pump 9's entrance point.

Further, the outer wall of the transfer tank 6 is fixedly provided with radiating fins 11 which are uniformly distributed.

Further, a pressure gauge is arranged on the transfer tank 6.

Further, the outlet end of the vacuum pump 9 is connected with one end of a purification box 10, activated carbon is placed inside the purification box 10, and the other end of the purification box 10 is provided with an exhaust port.

Furthermore, the inlet pipe 2, the air inlet pipe 3, the connecting pipe 5, the air inlet 7 and the liquid outlet 8 are all provided with valves.

In this embodiment, during the use of this device, earlier with 6 evacuation on the transit jar, then open the valve on the connecting pipe 5, reduce the inside pressure of retort 4, then be connected intake pipe 2 and nitrogen gas pipeline, impress retort 4 with the initiating agent through high-pressure nitrogen gas, owing to reduced retort 4's pressure before adding the initiating agent earlier, it is big to add the pressure differential between jar 1 and the retort 4, make just can accomplish the interpolation of initiating agent under the less condition of nitrogen gas pressure, the effectual security that improves the operation.

After the initiator is added, the connection is closed, the valve on the transfer tank 5 is closed, and because the radiating fins 11 are arranged outside the transfer tank 6, after the temperature of the transfer tank 6 is reduced, some substances escaped from the reaction tank 4 can be liquefied, and the substances can be conveniently recycled after liquefaction.

The purifying box 10 can purify the gas exhausted by the vacuum pump 9, and reduce the pollution to the external environment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an adding device of polymer polyether polyol initiator, is including adding feed tank (1) and transit tank (6), its characterized in that, the apron is installed to the upper end of adding feed tank (1), is connected with the one end of intake pipe (3) on the apron, the lower extreme of adding feed tank (1) is connected with retort (4) through inlet pipe (2), transit tank (6) are connected with retort (4) through connecting pipe (5), the upper end of transit tank (6) is provided with air inlet (7), the lower extreme of transit tank (6) is provided with leakage fluid dram (8), transit tank (6) still are connected with the entrance point of vacuum pump (9).

2. The device for adding the polymer polyether polyol initiator according to claim 1, wherein the outer wall of the transfer tank (6) is fixedly provided with uniformly distributed cooling fins (11).

3. The adding device of the polymer polyether polyol initiator as claimed in claim 1, wherein a pressure gauge is installed on the transfer tank (6).

4. The adding device of the polymer polyether polyol initiator as claimed in claim 1, wherein the outlet end of the vacuum pump (9) is connected with one end of a purifying box (10), activated carbon is placed inside the purifying box (10), and the other end of the purifying box (10) is provided with an exhaust port.

5. The adding device of the polymer polyether polyol initiator according to claim 1, wherein valves are arranged on the feeding pipe (2), the air inlet pipe (3), the connecting pipe (5), the air inlet (7) and the liquid outlet (8).