CN213913796U

CN213913796U - A reation kettle for polyurethane production

Info

Publication number: CN213913796U
Application number: CN202022840215.8U
Authority: CN
Inventors: 胡新华
Original assignee: Chengdu Pengzhou Mingzhong Chemical Co ltd
Current assignee: Chengdu Pengzhou Mingzhong Chemical Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-10
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a reation kettle for polyurethane production, include: the device comprises a kettle body, a feeding pipe, a discharging pipe, a filter, a flow equalizing plate, a filtering assembly and a control device, wherein the side part of the kettle body is provided with the feeding pipe, the top of the kettle body is connected with the discharging pipe, the bottom of the kettle body is provided with the discharging pipe, the feeding pipe is detachably connected with the filter, an opening at the top of the filter is hinged with a cover plate with an opening on the surface, the filtering assembly is movably arranged in the kettle body and comprises the flow equalizing plate, a first filtering net and a second filtering net which are in an inverted V shape, and the bottom of the flow equalizing plate is sequentially fixed with the first filtering net and the second filtering net through connecting rods; a mixing shaft driven to rotate by a motor is vertically arranged in the kettle body, a plurality of rotating separation blades are annularly arranged at the top of the mixing shaft, and a stirring frame and a plurality of stirring blades matched with the bottom of the kettle body are arranged at the bottom of the mixing shaft; the washing device also comprises a washing pipe, and the bottom of the washing pipe is connected with a washing nozzle through a plurality of through pipes. The utility model provides a reation kettle for polyurethane production can filter the polyurethane raw materials and be convenient for wash.

Description

A reation kettle for polyurethane production

Technical Field

The utility model relates to a polyurethane production technical field especially relates to a reation kettle for polyurethane production.

Background

The polyurethane is named polyurethane, a high molecular compound, and the polyurethane has two major types of polyester type and polyether type, and is widely applied to the fields of home furnishing, buildings, daily necessities, traffic, household appliances and the like.

In the prior art, when the existing polyurethane reaction kettle is used, proportioned raw materials of all components need to be put into the reaction kettle for mixing production, a lot of raw materials are adhered to the inner wall of the reaction kettle after production is finished, and the interior of the reaction kettle needs to be cleaned manually, so that the manual cleaning mode is inconvenient to clean, low in cleaning efficiency, high in labor intensity and capable of increasing production cost, and residual slurry in the reaction kettle influences the quality of slurry mixing of the next batch; reaction kettle's feed inlet is equipped with filter equipment usually in order to filter the edulcoration to the raw materials and guarantee polyurethane finished product quality, but the inconvenient washing of current filtration also is difficult for overhauing to appear blockking up in the filter process easily and influence feed efficiency, reduction in production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.

In order to solve the deficiencies of the prior art, the utility model provides a reation kettle for polyurethane production, include:

the device comprises a kettle body, a feeding pipe, a discharge pipe, a filter assembly and a filtering assembly, wherein the side part of the kettle body is provided with the feeding pipe, the top of the kettle body is connected with the discharge pipe, the bottom of the kettle body is provided with the discharge pipe, the feeding pipe is detachably connected with the filter, an opening at the top of the filter is hinged with a cover plate with an opening on the surface, the filtering assembly is movably arranged in the kettle body, the filtering assembly comprises a flow equalizing plate with a plurality of flow equalizing openings on the surface, a first filtering screen and a second filtering screen which are in an inverted V shape, the bottom of the flow equalizing plate is sequentially fixed with the first filtering screen and the second filtering screen through a connecting rod, and the bottom of the second filtering screen is positioned on a boss on the inner side wall of the filter;

a mixing shaft driven to rotate by a motor is vertically arranged in the kettle body, a plurality of rotating separation blades are annularly arranged at the top of the mixing shaft, and a stirring frame and a plurality of stirring blades matched with the bottom of the kettle body are arranged at the bottom of the mixing shaft;

still including installing the flushing pipe at the internal top of cauldron, the flushing pipe bottom is connected with washing terminals through a plurality of siphunculus, washing terminals is located rotatory separation blade top, the flushing pipe leads to pipe to be connected with external water source, be provided with the booster pump on the water pipe line.

Preferably, the bottom of the filter is provided with a connecting pipe, and the connecting pipe is in threaded connection with the feeding pipe.

Preferably, a sealing plate is arranged at the top of the kettle body, an exhaust port is formed in the sealing plate, and the mixing shaft is movably arranged on the sealing plate in a penetrating manner; the washing pipe is located above the sealing plate, the through pipe is movably arranged on the sealing plate in a penetrating mode, the washing nozzle is located below the sealing plate, a rotary joint penetrates through the joint of the through pipe and the washing pipe, a driving motor is fixed to the upper surface of the sealing plate, an output shaft of the driving motor is connected with the adjacent through pipe through belt transmission, and the adjacent two through pipes are connected through auxiliary belt transmission.

Preferably, the top of the flow equalizing plate is vertically provided with a lifting rod, and the sum of the length of the lifting rod and the length of the connecting rod is smaller than the distance from the lug boss to the opening at the bottom of the filter.

Preferably, the flow equalizing plate is arranged in an arch shape.

Preferably, the stirring blades are of an inverted V-shaped structure, and the stirring blades are uniformly arranged along the height direction of the mixing shaft.

The utility model discloses at least, include following beneficial effect:

1. the stirring frame at the bottom of the mixing shaft is matched with the bottom of the kettle body, so that the material stopping dead angle and the stirring dead angle in the kettle body are avoided, and the stirring frame and the stirring blade group are used for fully stirring the raw materials for polyurethane production, so that the raw materials are uniformly mixed, and the production efficiency is improved;

2. the washing nozzle flushes water downwards, the rotary retaining piece blocks scattered water flow in the rotating process, so that the water flow splashes and impacts the inner wall of the kettle body, the inner wall of the kettle body is washed, residual raw materials adhered to the inner wall of the kettle body can be washed away, the washing is convenient, and the washing efficiency is improved;

3. the feeding pipe and the filter are detachably connected, so that the filter can be conveniently detached to carry out operations such as cleaning, overhauling and the like, and the filtering effect of the filter is ensured; the flow equalizing plate is beneficial to blocking the raw materials, so that the flow velocity of the raw materials is slowed down, the impact force is reduced, the raw materials are dispersed, the raw materials uniformly fall on the first filter screen, and the situation that the raw materials flow to the middle area of the first filter screen in a concentrated mode and the filter screen of the assembly is partially sunken is avoided; filter the raw materials with filter screen two cooperation jointly, guarantee the filter effect, and filter screen one all is the setting of invering V-arrangement with filter screen two, increase filter area, the large granule solid impurity after filtering simultaneously glides to the side bottom of filter screen one and filter screen two along the slope section for difficult emergence when filter screen one filters with filter screen two is blockked up, and the solid impurity of whereabouts to filter screen one and filter screen two bottoms is convenient for follow-up concentrated clearance, improves cleaning process efficiency.

Drawings

FIG. 1 is a schematic structural view of a reaction kettle for polyurethane production according to the present invention.

Fig. 2 is a schematic diagram of the filter structure of the present invention.

Reference numerals: 1-kettle body, 2-feeding pipe, 3-exhaust pipe, 4-discharging pipe, 5-filter, 6-cover plate, 7-through port, 8-flow equalizing plate, 81-flow equalizing port, 82-connecting rod, 9-filter screen I, 10-filter screen II, 11-boss, 12-mixing shaft, 13-rotary baffle, 14-stirring frame, 15-stirring blade, 16-flushing pipe, 17-through pipe, 18-flushing nozzle, 19-water pipe, 20-connecting pipe, 21-sealing plate, 22-exhaust port, 23-rotary joint, 24-driving motor and 25-lifting rod.

Detailed Description

The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

Fig. 1-2 show the utility model discloses a reation kettle for polyurethane production, include:

the device comprises a kettle body 1 with a feeding pipe 2 arranged on the side part, wherein the top of the kettle body 1 is connected with an exhaust pipe 3, the bottom of the kettle body is provided with a discharging pipe 4, the feeding pipe 2 is detachably connected with a filter 5, an opening part at the top of the filter 5 is hinged with a cover plate 6 with an opening 7 on the surface, a filtering component is movably arranged in the kettle body, the filtering component comprises a flow equalizing plate 8 with a plurality of flow equalizing openings 81 on the surface, a first filter screen 9 and a second filter screen 10 in an inverted V shape, the bottom of the flow equalizing plate 8 is sequentially fixed with the first filter screen 9 and the second filter screen 10 through a connecting rod 82, and the bottom of the second filter screen 10 is positioned on a boss 11 on the inner side wall of the filter 5;

a mixing shaft 12 driven by a motor to rotate is vertically arranged in the kettle body 1, a plurality of rotating blocking pieces 13 are annularly arranged at the top of the mixing shaft 12, and a stirring frame 14 and a plurality of stirring blades 15 matched with the bottom of the kettle body 1 are arranged at the bottom of the mixing shaft 12;

still including installing the flushing pipe 16 at top in the cauldron body 1, 16 bottoms of flushing pipe are connected with washing terminals 18 through a plurality of siphunculus 17, washing terminals 18 are located rotatory separation blade 13 top, flushing pipe 16 leads to pipe 19 to be connected with external water source, be provided with the booster pump on the 19 pipelines of water pipe.

In the technical scheme, the stirring frame 14 at the bottom of the mixing shaft 12 is matched with the bottom of the kettle body 1, so that a material stopping dead angle and a stirring dead angle in the kettle body 1 are avoided, and the stirring frame 14 and the stirring blades 15 group fully stir raw materials for polyurethane production, so that the raw materials are uniformly mixed, and the production efficiency is improved; the washing nozzle 18 flushes water downwards, the rotary baffle 13 blocks scattered water flow in the rotating process, so that water flow splashes and impacts the inner wall of the kettle body 1 to wash the inner wall of the kettle body 1, residual raw materials adhered to the inner wall of the kettle body 1 are favorably washed, the washing is convenient, and the washing efficiency is improved; the feeding pipe 2 and the filter 5 are detachably connected, so that the filter 5 can be conveniently detached to carry out operations such as cleaning and maintenance, and the filtering effect of the filter is ensured; the flow equalizing plate 8 is favorable for blocking raw materials so as to slow down the flow velocity of the raw materials and reduce the impact force, and is favorable for dispersing the raw materials so that the raw materials uniformly fall on the first filter screen 9, thereby preventing the concentrated raw materials from flowing to the middle area of the first filter screen 9 and locally sinking the first filter screen 9; filter the raw materials with two 10 common cooperations of filter screen one 9, guarantee the filter effect, and filter screen one 9 all is the setting of invering V-arrangement with two 10 filter screens, increase filter area, large granule solid impurity after the while filtration glides to the side bottom of filter screen one 9 and two 10 filter screens along the slope section, be difficult for taking place the jam when making filter screen one 9 filter with two 10 filter screens, and fall the solid impurity of filter screen one 9 and filter screen 10 bottom and be convenient for follow-up concentrated clearance, improve cleaning treatment efficiency.

The working principle is as follows: the port 7 of the top cover plate 6 of the filter 5 is connected with a raw material conveying pipeline, and the exhaust pipe 3 is connected with a condensing device; the raw materials come out from raw materials pipeline and enter into filter 5 and filter, and the raw materials after filtering enters into cauldron body 1 through filling tube 2 in, starter motor, motor drive mixing shaft 12 is rotatory, and stirring frame 14 promotes the reaction with the raw materials with stirring blade 15 group intensive mixing polyurethane production, and the gas that produces in the production process is discharged through blast pipe 3 and is collected, and production is accomplished the back, and polyurethane discharges through unloading pipe 4. Under the action of the booster pump, cleaning water enters the flushing pipe 16 through the water pipe 19 and is finally sprayed out through the flushing nozzle 18, meanwhile, the mixing shaft 12 drives the rotary retaining sheet 13, the stirring blades 15 and the stirring frame 14 to rotate, so that the kettle body 1 is cleaned, and the next batch of production is carried out after the cleaning is finished.

In another example, the filter 5 is provided with a connecting pipe 20 at the bottom, and the connecting pipe 20 is connected with the feeding pipe 2 by screw threads. By adopting the scheme, the filter 5 and the charging pipe 2 are firmly fixed and are convenient to detach.

In another example, a sealing plate 21 is installed on the top of the kettle body 1, an exhaust port 22 is opened on the sealing plate 21, and the mixing shaft 12 is movably arranged on the sealing plate 21; the flushing pipe 16 is located above the sealing plate 21, the through pipe 17 is movably arranged on the sealing plate 21 in a penetrating mode, the flushing nozzle 18 is located below the sealing plate 21, a rotary joint 23 penetrates through the joint of the through pipe 17 and the flushing pipe 16, a driving motor 24 is fixed on the upper surface of the sealing plate 21, an output shaft of the driving motor 24 is connected with the adjacent through pipe 17 through belt transmission, and the adjacent two through pipes 17 are connected through auxiliary belt transmission.

In the technical scheme, the through pipe 17 is rotated under the combined action of the driving motor 24, the belt and the auxiliary belt, and the through pipe 17 drives the washing nozzle 18 at the bottom to rotate, so that the washing nozzle 18 uniformly and comprehensively washes the inside of the kettle body 1.

In another example, the top of the flow equalizing plate 8 is vertically provided with a lifting rod 25, and the sum of the length of the lifting rod 25 and the length of the connecting rod 82 is less than the distance length from the boss 11 to the bottom opening of the filter 5. With this arrangement, it is convenient for the operator to remove the filter assembly from the filter 5 by extracting the lifting bar 25.

In another example, the flow equalization plate 8 is arched. By adopting the scheme, the arched flow equalizing plate 8 can disperse and buffer the impact force caused by the raw materials by utilizing the arc-shaped surface, thereby being beneficial to prolonging the service life of the flow equalizing plate 8.

In another example, the stirring blades 15 are in an inverted V-shaped structure, and the stirring blades 15 are uniformly arranged along the height direction of the mixing shaft 12. By adopting the scheme, the stirring blade 15 with the inverted V-shaped structure is beneficial to enlarging the stirring range and improving the stirring and mixing efficiency.

While the embodiments of the invention have been described above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications can be easily made by those skilled in the art without departing from the general concept defined by the claims and their equivalents, and it is therefore not limited to the specific details and illustrations shown and described herein, and it is obvious that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A reaction kettle for polyurethane production is characterized by comprising:

the device comprises a kettle body (1) with a feeding pipe (2) arranged on the side part, an exhaust pipe (3) is connected to the top of the kettle body (1), a blanking pipe (4) is arranged at the bottom of the kettle body, the feeding pipe (2) is detachably connected with a filter (5), an opening at the top of the filter (5) is hinged with a cover plate (6) with an opening (7) arranged on the surface, a filter assembly is movably arranged in the kettle body, the filter assembly comprises a flow equalizing plate (8) with a plurality of flow equalizing openings (81) arranged on the surface, a first inverted V-shaped filter screen (9) and a second inverted V-shaped filter screen (10), the bottom of the flow equalizing plate (8) is sequentially fixed with the first filter screen (9) and the second filter screen (10) through a connecting rod (82), and the bottom of the second filter screen (10) is positioned on a boss (11) on the inner side wall of the filter (5);

a mixing shaft (12) driven by a motor to rotate is vertically arranged in the kettle body (1), a plurality of rotating blocking pieces (13) are annularly arranged at the top of the mixing shaft (12), and a stirring frame (14) and a plurality of stirring blades (15) matched with the bottom of the kettle body (1) are arranged at the bottom of the mixing shaft (12);

still including installing flushing pipe (16) at top in the cauldron body (1), flushing pipe (16) bottom is connected with washing terminals (18) through a plurality of siphunculus (17), washing terminals (18) are located rotatory separation blade (13) top, flushing pipe (16) lead to pipe (19) to be connected with external water source, be provided with the booster pump on water pipe (19) the pipeline.

2. The reaction kettle for producing polyurethane as claimed in claim 1, wherein a connecting pipe (20) is arranged at the bottom of the filter (5), and the connecting pipe (20) is in threaded connection with the feeding pipe (2).

3. The reaction kettle for producing polyurethane as claimed in claim 1, wherein a sealing plate (21) is installed on the top of the kettle body (1), the sealing plate (21) is provided with an exhaust port (22), and the mixing shaft (12) is movably arranged on the sealing plate (21); flushing pipe (16) are located closing plate (21) top, siphunculus (17) activity is worn to establish on closing plate (21), washing shower nozzle (18) are located closing plate (21) below, siphunculus (17) run through with flushing pipe (16) junction and are provided with rotary joint (23), closing plate (21) upper surface is fixed with driving motor (24), the output shaft of driving motor (24) passes through belt transmission rather than adjacent siphunculus (17) and is connected, connects through supplementary belt transmission between two adjacent siphunculus (17).

4. The reaction kettle for producing polyurethane as recited in claim 1, wherein a lifting rod (25) is vertically arranged on the top of the flow equalizing plate (8), and the sum of the length of the lifting rod (25) and the length of the connecting rod (82) is smaller than the distance from the boss (11) to the bottom opening of the filter (5).

5. The reaction kettle for polyurethane production according to claim 1, wherein the flow equalizing plate (8) is arched.

6. The reaction kettle for polyurethane production as recited in claim 1, wherein the stirring blade (15) is of an inverted V-shaped structure, and the stirring blade (15) is uniformly arranged along the height direction of the mixing shaft (12).