CN217093463U

CN217093463U - Device for producing polyester polyol

Info

Publication number: CN217093463U
Application number: CN202122772796.0U
Authority: CN
Inventors: 丁虫虫; 徐礼文; 李晓
Original assignee: Hubei Jingzhou Huabang Chemical Co ltd
Current assignee: Hubei Jingzhou Huabang Chemical Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-08-02
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to the technical field of polyester polyol production equipment, and discloses a device for producing polyester polyol, which comprises a kettle body, wherein the upper outer wall of the kettle body is connected with a feeding pipe, the bottom of the kettle body is connected with a discharging pipe, the upper part of the discharging pipe is provided with a pumping pump, the lower part of the discharging pipe is provided with a valve I, the middle part of the discharging pipe is communicated with a main conveying pipe, the upper outer wall of the main conveying pipe is communicated with a branch conveying pipe, the branch conveying pipe is provided with a valve II, one end of the branch conveying pipe is communicated with a ring pipe, the ring pipe is connected with a connecting block, the top of the connecting block is connected with the top surface of an inner cavity of the kettle body, the lower outer wall of the ring pipe is communicated with a feeding pipe, the outer wall of the branch conveying pipe is communicated with a main water pipe, the lower part of the main water pipe is provided with a valve III, the middle part of the main water pipe is communicated with a branch water pipe, the lower part of the branch water pipe is provided with a valve IV, the front part of the main water pipe is provided with a booster pump, the uniformity of mixing is improved, and equipment is convenient to clean.

Description

Device for producing polyester polyol

Technical Field

The utility model belongs to the technical field of polyester polyol production facility, specifically be a device of production polyester polyol.

Background

The polyester polyol is generally prepared by condensing (or ester exchanging) organic dicarboxylic acid (anhydride or ester) and polyhydric alcohol (including dihydric alcohol) or polymerizing lactone and polyhydric alcohol, and is one of main raw materials for producing polyester polyurethane, and polyester polyols with various specifications and brands can be used for producing different polyurethane products by reacting with isocyanate.

The existing polyester polyol needs a reaction kettle to mix and react raw materials in the production process, but the existing reaction kettle is simple in a stirring device, cannot fully stir the raw materials, is troublesome to clean, and provides a device for producing the polyester polyol in order to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the above-mentioned problems, an apparatus for producing a polyester polyol is provided.

The utility model adopts the technical scheme as follows: a device for producing polyester polyol comprises a kettle body, wherein a feeding pipe is connected to the outer wall of the upper portion of the kettle body, a discharging pipe is connected to the bottom of the kettle body, a pumping pump is arranged on the upper portion of the discharging pipe, a first valve is arranged on the lower portion of the discharging pipe, a main conveying pipe is communicated with the middle portion of the discharging pipe, a second valve is arranged on the main conveying pipe, one end of the main conveying pipe is communicated with a ring pipe, the ring pipe is arranged inside the kettle body, a connecting block is connected onto the ring pipe, the top of the connecting block is connected to the top surface of an inner cavity of the kettle body, a feeding pipe is communicated with the outer wall of the ring pipe, a main water pipe is communicated with the outer wall of the branch conveying pipe, a third valve is arranged on the lower portion of the main water pipe, a branch water pipe is communicated with the middle portion of the main water pipe, and a fourth valve is arranged on the lower portion of the branch water pipe, the bottom of the branch water pipe is communicated with the top end of the main delivery pipe, and the front part of the main delivery pipe is provided with a booster pump.

In a preferred embodiment, the top of the cauldron body is connected with the motor, the motor has the dwang through power output shaft connection, the outer wall welding of dwang has a plurality of paddles.

In a preferred embodiment, a plurality of the paddles are symmetrically arranged in a group from two to two, and each group of the structure is arranged on the outer wall of the rotating rod from top to bottom.

In a preferred embodiment, the number of the connecting blocks is four, and the connecting blocks are respectively arranged on the annular pipes in pairs at 90 degrees.

In a preferred embodiment, the number of the feeding pipes is not single, and every two feeding pipes are arranged on the outer wall of the lower part of the annular pipe at an equal angle.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, in sending the raw materials to main conveyer pipe by the discharging pipe pump by starting the pumpingh pump, main conveyer pipe sends the annular tube to through a conveyer pipe, and the raw materials that will take out to send up evenly sends back the cauldron body by the pan feeding pipe in, forms circulation material feeding unit, deuterogamies the internal agitating unit of cauldron to make the stirring mix even more abundant, improve the efficiency of mixing reaction.

2. The utility model discloses in, in the main water pipe access to the water pipe, then open valve three and valve one, close valve two simultaneously, start the booster pump this moment, utilize the pressure of booster pump increase running water, and send the running water after the booster into the ring pipe through a conveyer pipe, and by pan feeding pipe blowout, thereby wash the internal portion of cauldron, and the running water passes through the discharging pipe and discharges, this structure is through opening valve four simultaneously, can send the running water after the increase into main conveyer pipe, can wash main conveyer pipe, overall structure is convenient to wash equipment fast.

Drawings

FIG. 1 is a schematic diagram of the front view of the internal structure of the present invention;

FIG. 2 is a schematic diagram of the top view structure of the present invention;

fig. 3 is a schematic diagram of the overlooking structure of the well concrete body of the utility model.

The labels in the figure are: 1-kettle body, 2-feeding pipe, 3-discharging pipe, 4-pumping pump, 5-valve I, 6-main conveying pipe, 7-branch conveying pipe, 8-valve II, 9-annular pipe, 10-connecting block, 11-feeding pipe, 12-main water pipe, 13-valve III, 14-branch water pipe, 15-valve IV, 16-booster pump, 17-motor, 18-rotating rod and 19-paddle.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The apparatus for producing polyester polyol according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Example (b):

the embodiment of the utility model provides a pair of device of production polyester polyol, it is shown with reference to fig. 1 and fig. 2, including the cauldron body 1, the top of the cauldron body 1 is connected with motor 17, and motor 17 has dwang 18 through power output shaft, and the outer wall welding of dwang 18 has paddle 19, drives dwang 18 through motor 17 and rotates to drive paddle 19 and rotate, can stir the reaction fast to the raw materials.

Referring to fig. 1, two of the blades 19 are symmetrically arranged in one group, and each group of structures is arranged on the outer wall of the rotating rod 18 from top to bottom, and the use of a plurality of groups of blades 19 improves the stirring range.

Referring to fig. 1 and 2, the outer wall of the upper part of the kettle body 1 is connected with a feeding pipe 2, the feeding pipe 2 conveniently and quickly feeds the kettle body, the bottom of the kettle body 1 is connected with a discharging pipe 3, the discharging pipe 3 plays a role of discharging, the upper part of the discharging pipe 3 is provided with a pumping pump 4, the lower part of the discharging pipe 3 is provided with a valve I5, the discharging pipe 3 is closed and opened through the valve I5, the middle part of the discharging pipe 3 is communicated with a main conveying pipe 6, the outer wall of the upper part of the main conveying pipe 6 is communicated with a branch conveying pipe 7, the branch conveying pipe 7 is provided with a valve II 8, the valve II 8 plays a role of cutting off the connection between the branch conveying pipe 7 and the main conveying pipe 6, one end of the branch conveying pipe 7 is communicated with a ring pipe 9, the ring pipe 9 is connected with a connecting block 10, the top of the connecting block 10 is connected to the top surface of the inner cavity of the kettle body 1, the outer wall of the lower part of the ring pipe 9 is communicated with a feeding pipe 11, the structure is formed by closing the valve I5 and opening the valve II 8, then the raw materials are circularly conveyed to the kettle body 1 from top to bottom through the pumping pump 4 and the conveying pipe, and the mixing reaction efficiency can be improved by matching with a stirring device.

Referring to fig. 3, the number of the connecting blocks 10 is four, and two connecting blocks are respectively arranged on the annular pipe 9 at 90 degrees.

Referring to fig. 3, the number of the feeding pipes 11 is not single, every two feeding pipes 11 are arranged on the outer wall of the lower portion of the annular pipe 9 at equal angles, and the feeding pipes 11 discharge materials uniformly to prevent the raw materials from being stacked.

Referring to fig. 1 and 2, the outer wall of the branch delivery pipe 7 is communicated with a main water pipe 12, the main water pipe 12 is connected with a tap water pipe, a third valve 13 is arranged at the lower part of the main water pipe 12, a branch water pipe 14 is communicated with the middle part of the main water pipe 12, a fourth valve 15 is arranged at the lower part of the branch water pipe 14, the bottom end of the branch water pipe 14 is communicated with the top end of the main delivery pipe 6, a booster pump 16 is arranged at the front part of the main water pipe 12, the structure can carry the boosted tap water into the kettle body 1 by opening the third valve 13, the interior of the kettle body 1 can be flushed, and meanwhile, the fourth valve 15 is opened to send the tap water into the main delivery pipe 7, so that the main delivery pipe 7 is cleaned.

The device for producing polyester polyol of the embodiment of the application has the following implementation principle: firstly, a motor 17 is connected with an external power supply, then the motor 17 is started to drive a rotating rod 18 to rotate, so as to drive a paddle 19 to rotate, and the raw materials can be quickly stirred and reacted, at the moment, a pumping pump 4 is connected with the external power supply, the raw materials are pumped into a main conveying pipe 6 from a discharge pipe 3 by starting the pumping pump 4, the main conveying pipe 6 is conveyed into a ring pipe 9 through a branch conveying pipe 7, the pumped raw materials are uniformly returned into a kettle body 1 from a feeding pipe 11 to form a circulating feeding device, and then the circulating feeding device is matched with a stirring device in the kettle body 1, so that the stirring and mixing are more uniform and sufficient, when the equipment needs to be cleaned, a main water pipe 12 is connected into a tap water pipe, then a valve III 13 and a valve I5 are opened, a valve II is closed, at the booster pump 16 is started at the moment, the pressure of the tap water is increased by using the booster pump 16, and the boosted tap water is conveyed into the ring pipe 9 through the branch conveying pipe 7, and by 11 spouts of pan feeding pipe to wash 1 inside of the cauldron body, and the running water discharges through discharging pipe 3, this structure is through opening valve four 15 simultaneously, can send the running water after increasing into main conveyer pipe 6, can wash main conveyer pipe 6, and overall structure is convenient to wash equipment fast.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a device of production polyester polyol, includes the cauldron body (1), its characterized in that: the upper outer wall of the kettle body (1) is connected with a feeding pipe (2), the bottom of the kettle body (1) is connected with a discharging pipe (3), the upper portion of the discharging pipe (3) is provided with a pumping pump (4), the lower portion of the discharging pipe (3) is provided with a valve I (5), the middle portion of the discharging pipe (3) is communicated with a main conveying pipe (6), the upper outer wall of the main conveying pipe (6) is communicated with a branch conveying pipe (7), the branch conveying pipe (7) is provided with a valve II (8), one end of the branch conveying pipe (7) is positioned in the kettle body (1) and is communicated with a ring pipe (9), the ring pipe (9) is connected with a connecting block (10), the top of the connecting block (10) is connected to the top surface of an inner cavity of the kettle body (1), the lower outer wall of the ring pipe (9) is communicated with a feeding pipe (11), the outer wall of the branch conveying pipe (7) is communicated with a main water pipe (12), the lower part of main water pipe (12) is provided with valve three (13), the middle part intercommunication of main water pipe (12) has a water pipe (14), the lower part of a water pipe (14) is provided with valve four (15), the bottom intercommunication of a water pipe (14) the top of main conveyer pipe (6), the front portion of main water pipe (12) is provided with booster pump (16).

2. The apparatus for producing polyester polyol according to claim 1, wherein: the top of the kettle body (1) is connected with a motor (17), the motor (17) is connected with a rotating rod (18) through a power output shaft, and paddles (19) are welded on the outer wall of the rotating rod (18).

3. The apparatus for producing polyester polyol according to claim 2, wherein: every two symmetries of paddle (19) are a set of, and every group structure from the top down sets up on the outer wall of dwang (18).

4. The apparatus for producing polyester polyol according to claim 1, wherein: the number of the connecting blocks (10) is four, and every two connecting blocks are arranged on the annular pipe (9) in a 90-degree mode.

5. The apparatus for producing polyester polyol according to claim 1, wherein: the number of the feeding pipes (11) is not single, and every two feeding pipes (11) are arranged on the outer wall of the lower part of the annular pipe (9) at equal angles.