CN109092132B

CN109092132B - High-efficient agitating unit

Info

Publication number: CN109092132B
Application number: CN201811027055.6A
Authority: CN
Inventors: 戴小兵; 王永辉; 朱文权; 刘荣; 马先良
Original assignee: Tongling Youse Xingtong Electrical And Mechanical Manufacturing Co ltd
Current assignee: Tongling Youse Xingtong Electrical And Mechanical Manufacturing Co ltd
Priority date: 2018-09-04
Filing date: 2018-09-04
Publication date: 2020-10-16
Anticipated expiration: 2038-09-04
Also published as: CN109092132A

Abstract

The invention relates to a high-efficiency stirring device which comprises a kettle body and a stirring paddle, wherein the stirring paddle comprises a stirring shaft and a stirring blade fixedly arranged at the lower part of the stirring shaft, a turbulence device is also arranged in the kettle body, the turbulence device comprises a shaft sleeve sleeved outside the stirring shaft, a plurality of iron chains are arranged outside the shaft sleeve, and an iron ball is fixedly arranged at the head end of each iron chain. The outside of the kettle body is provided with a circular ring-shaped electromagnet, a plurality of lifting devices are arranged below the electromagnet, and the lifting ends of the lifting devices are fixedly connected with the lower end of the electromagnet. High-efficient agitating unit's stirring is efficient, saves the churning time, is favorable to improving production efficiency.

Description

High-efficient agitating unit

Technical Field

The invention relates to a high-efficiency stirring device, and belongs to the technical field of stirring.

Background

The stirring kettle is a reaction kettle provided with a stirring paddle, wherein the stirring paddle is a shaft with blades, and the shaft rotates in the reaction kettle to stir and mix a plurality of raw materials to form a mixture or equipment with proper consistency.

At present, a stirring blade is usually arranged at the lower end of a stirring shaft, so that the vortex generated by the rotation of a stirring paddle is used for mixing the raw materials in the reaction kettle. Because the swirl that mainly relies on the rotatory production of stirring rake comes the raw materials to mix, this makes stirring vane set up in the lower part of (mixing) shaft usually, even the stirring vane is installed to the well, upper portion of (mixing) shaft is little to the improvement help of stirring efficiency. Even if the spoiler is additionally arranged on the inner wall of the stirring kettle in the prior stirring kettle, the turbulence degree of the fluid in the stirring kettle cannot be obviously improved, so that the improvement of the stirring speed is limited; in addition, the spoiler is additionally arranged, so that the joint between the spoiler and the inner wall of the stirring kettle is not easy to clean.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a high-efficiency stirring device, which has the following specific technical scheme:

the utility model provides a high-efficient agitating unit, includes the cauldron body, stirring rake, the stirring rake includes the (mixing) shaft and sets firmly the stirring vane in the (mixing) shaft lower part, the inside of the cauldron body still is provided with the vortex device, the vortex device is established at the outside axle sleeve of (mixing) shaft including the cover, the axle sleeve rotates with the (mixing) shaft to be connected, the outside of axle sleeve is provided with many iron chains, the tail end of iron chain and the lateral wall fixed connection of axle sleeve, the head end of iron chain has set firmly the iron ball.

As an improvement of the technical scheme, the upper end and the lower end of the shaft sleeve are respectively provided with an annular baffle ring, the baffle rings are sleeved outside the stirring shaft and are fixedly connected with the stirring shaft; the distance between the two baffle rings is larger than the length of the shaft sleeve.

As an improvement of the technical scheme, a circular ring-shaped electromagnet is arranged outside the kettle body, a plurality of lifting devices are arranged below the electromagnet, and the lifting ends of the lifting devices are fixedly connected with the lower end of the electromagnet.

As an improvement of the technical scheme, the lifting device is a hydraulic cylinder which does linear reciprocating motion or a pneumatic cylinder which does linear reciprocating motion.

As an improvement of the technical scheme, an iron ring is fixedly arranged on an inner ring of the electromagnet, at least three dovetail grooves are arranged on the inner ring of the iron ring, the dovetail grooves are symmetrically arranged on the inner side of the iron ring along the axial direction of the iron ring, the upper ends of the dovetail grooves extend to the upper end face of the iron ring, and the lower ends of the dovetail grooves extend to the lower end face of the iron ring; the outside of the cauldron body sets firmly the perpendicular rail with dovetail groove looks adaptation, the cross section of erecting the rail is isosceles trapezoid.

As an improvement of the technical scheme, the kettle body, the stirring shaft, the stirring blades and the shaft sleeve are all made of non-ferromagnetic materials.

As an improvement of the technical scheme, a kettle cover is arranged at the upper end of the kettle body and is fixedly connected with the upper end of the kettle body, and a feeding hole is formed in the kettle cover.

As an improvement of the technical scheme, a driving motor and a reduction gearbox are fixedly arranged above the kettle cover, and the driving motor drives the stirring shaft to rotate through the reduction gearbox.

As an improvement of the technical scheme, the center of the bottom of the kettle body is provided with a discharge pipe communicated with the inner cavity of the kettle body, and the lower part of the discharge pipe is provided with a discharge valve.

As an improvement of the technical scheme, the bottom of the kettle body is also provided with a plurality of supporting legs.

The efficient stirring device disclosed by the invention has high stirring efficiency, saves the stirring time and is beneficial to improving the production efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a high-efficiency stirring device according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the connection between the vertical rail and the autoclave body according to embodiment 1 of the present invention;

fig. 3 is a schematic view of the connection between the iron ring and the electromagnet according to embodiment 1 of the present invention;

fig. 4 is a schematic working diagram of the flow disturbing device when the stirring paddle rotates in embodiment 2 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in fig. 1, high-efficient agitating unit, including the cauldron body 10, stirring rake, the stirring rake includes (mixing) shaft 21 and sets firmly stirring vane 22 in the (mixing) shaft 21 lower part, the inside of the cauldron body 10 still is provided with the vortex device, the vortex device is established at the outside axle sleeve 31 of (mixing) shaft 21 including the cover, axle sleeve 31 rotates with (mixing) shaft 21 to be connected, the outside of axle sleeve 31 is provided with many iron chains 32, the tail end of iron chain 32 and the lateral wall fixed connection of axle sleeve 31, the head end of iron chain 32 has set firmly iron ball 33.

Further, the outer part of the kettle body 10 is provided with an annular electromagnet 50, a plurality of lifting devices 60 are arranged below the electromagnet 50, and the lifting ends of the lifting devices 60 are fixedly connected with the lower end of the electromagnet 50.

When the efficient stirring device is used for stirring, due to the fact that the turbulence device is installed, the electromagnet 50 is electrified to generate magnetic force, so that the iron ball 33 is adsorbed, and due to the magnetic force, the iron ball 33 stretches the iron chain 32. When the iron ball 33 and the iron chain 32 are attracted by the magnetic force generated by the electromagnet 50 and are fixed, the shaft sleeve 31 is rotatably connected with the stirring shaft 21, and the rotation of the stirring shaft 21 does not affect the iron ball 33 and the iron chain 32. As shown in fig. 1, the liquid level inside the kettle 10 does not exceed the upper end surface of the shaft sleeve 31, and the existence of the iron ball 33 and the iron chain 32 hinders the fluid layer inside the kettle 10, which causes the upper half of the fluid layer inside the kettle 10 to be damaged, and causes turbulence and disorder of the fluid, that is, the turbulence of the fluid inside the kettle 10 is increased under the action of the iron ball 33 and the iron chain 32, which increases the stirring rate. Meanwhile, materials are not easy to adhere to the surfaces of the iron balls 33 and the iron chains 32, and even if the materials are adhered, cleaning water is poured into the kettle body 10, the stirring paddles are started, and the electromagnets 50 are electrified, the cleaning operation of the iron balls 33 and the iron chains 32 can be easily completed. The sum of the length of the iron chain 32, the diameter of the iron ball 33 and the thickness of the shaft sleeve 31 is x, and x is smaller than the inner radius of the kettle body 10, so that when the iron chain 32 is perpendicular to the stirring shaft 21, the iron ball 33 cannot impact the inner wall of the kettle body 10.

Furthermore, the upper end and the lower end of the shaft sleeve 31 are respectively provided with an annular retaining ring 34, the retaining ring 34 is sleeved outside the stirring shaft 21, and the retaining ring 34 is fixedly connected with the stirring shaft 21; the distance between the two stop rings 34 is greater than the length of the sleeve 31. The existence of the stop ring 34 can limit the position of the shaft sleeve 31 and avoid the shaft sleeve 31 from sliding up and down.

Further, the upper end of the kettle body 10 is provided with a kettle cover 11, the kettle cover 11 is fixedly connected with the upper end of the kettle body 10, and the kettle cover 11 is provided with a feeding hole 111.

Further, a driving motor 40 and a reduction gearbox 41 are fixedly arranged above the kettle cover 11, and the driving motor 40 drives the stirring shaft 21 to rotate through the reduction gearbox 41. The stirring shaft 21 is rotatably connected with the kettle cover 11.

Further, in order to facilitate discharging, a discharging pipe 12 communicated with the inner cavity of the kettle body 10 is arranged in the center of the bottom of the kettle body 10, and a discharging valve 121 is arranged at the lower part of the discharging pipe 12.

Further, the bottom of the kettle body 10 is also provided with a plurality of supporting legs 13.

Example 2

The height of the electromagnet 50 can be adjusted by the lifting device 60, so that the height of the iron ball 33 can be changed, and the opening angle of the iron chain 32 in the kettle 10 can be changed. If the liquid level inside the kettle 10 exceeds the upper end surface of the shaft sleeve 31, the height of the iron ball 33 needs to be higher than the upper end surface of the shaft sleeve 31 within a certain period of time in order to improve the stirring efficiency, as shown in fig. 4.

Wherein, the lifting device 60 is a hydraulic cylinder performing a linear reciprocating motion or a pneumatic cylinder performing a linear reciprocating motion.

Further, in order to ensure that the electromagnet 50 can be always tightly attached to the outer side wall of the kettle body 10 in the ascending or descending process, the deviation is avoided; an iron ring 70 is fixedly arranged on an inner ring of the electromagnet 50, the inner ring of the iron ring 70 is in clearance fit with the outer side wall of the kettle body 10, at least three dovetail grooves 71 are formed in the inner ring of the iron ring 70, the dovetail grooves 71 are symmetrically arranged on the inner side of the iron ring 70 along the axial direction of the iron ring 70, the upper ends of the dovetail grooves 71 extend to the upper end face of the iron ring 70, and the lower ends of the dovetail grooves 71 extend to the lower end face of the iron ring 70; the outer side of the kettle body 10 is fixedly provided with a vertical rail 15 matched with the dovetail groove 71, and the cross section of the vertical rail 15 is in an isosceles trapezoid shape. Under the matching action of the vertical rail 15 and the dovetail groove 71, the electromagnet 50 can move up and down along the direction defined by the vertical rail 15, and the iron ring 70 is tightly attached to the outer side wall of the kettle body 10.

Further, the kettle body 10, the stirring shaft 21, the stirring blades 22 and the shaft sleeve 31 are all made of non-ferromagnetic materials, so that the influence of a magnetic field generated after the electromagnet 50 is electrified on the rotation of the stirring shaft 21 and the stirring blades 22 can be avoided, and the mutual adsorption between the shaft sleeve 31 and the stirring shaft 21 can be avoided. If the kettle body 10 is made of ferromagnetic material, the magnetic field generated by the electromagnet 50 when energized will magnetize the kettle body 10, which will affect the iron chain 32.

In the above embodiment, when the stirring paddle stirs the material inside the kettle 10 to form a vortex, the magnetic field generated after the electromagnet 50 is powered on adsorbs the iron ball 33, which may cause the iron chain 32 to be tightened, the tightened iron chain 32 may disturb the flow layer inside the kettle 10, which aggravates the turbulence of the fluid inside the kettle 10, thereby improving the stirring efficiency. When the liquid level of the fluid in the kettle 10 is too high, for example, the liquid level of the fluid in the kettle 10 is higher than the height of the stirring blade 22 at the uppermost layer by more than 1 meter, the lifting device 60 can be used to lift the electromagnet 50 to the highest position, then lower the electromagnet 50 to the lowest position, and then lift the electromagnet 50 to the highest position, and the above steps are repeated in a circulating manner, in the process, the iron chain 32 can continuously change the angle to disturb the fluid in the kettle 10, so that the stirring efficiency is further improved. For example, if an existing stirring kettle without the flow perturbation device, the electromagnet 50 and the lifting device 60 is used to stir 22.5 kg of dicyandiamide and 200 kg of dimethylformamide, a minimum of 3 hours and 40 minutes are needed to stir the stirring kettle so that the dicyandiamide is completely dissolved in the dimethylformamide, wherein the method for judging that the dicyandiamide is completely dissolved in the dimethylformamide is as follows: a sample was taken from the inside of the stirred tank, and the presence or absence of undissolved dicyandiamide crystals in the sample was observed by a 10-fold microscope. And 22.5 kg of dicyandiamide and 200 kg of dimethylformamide are stirred by the efficient stirring device, and the dicyandiamide can be completely dissolved in the dimethylformamide only by stirring for 1 hour and 25 minutes, i.e. compared with the existing stirring kettle, the efficient stirring device has the stirring efficiency which is 2.6 times that of the existing stirring kettle, and the efficient stirring device is high in stirring efficiency, saves the stirring time and is beneficial to improving the production efficiency.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a high-efficient agitating unit, includes the cauldron body (10), stirring rake, the stirring rake includes (mixing) shaft (21) and sets firmly stirring vane (22) in (mixing) shaft (21) lower part, its characterized in that: the kettle is characterized in that a turbulence device is further arranged inside the kettle body (10), the turbulence device comprises a shaft sleeve (31) sleeved outside the stirring shaft (21), the shaft sleeve (31) is rotatably connected with the stirring shaft (21), a plurality of iron chains (32) are arranged outside the shaft sleeve (31), the tail ends of the iron chains (32) are fixedly connected with the outer side wall of the shaft sleeve (31), and the head ends of the iron chains (32) are fixedly provided with iron balls (33);

the upper end and the lower end of the shaft sleeve (31) are respectively provided with an annular retaining ring (34), the retaining ring (34) is sleeved outside the stirring shaft (21), and the retaining ring (34) is fixedly connected with the stirring shaft (21); the distance between the two baffle rings (34) is greater than the length of the shaft sleeve (31);

the kettle is characterized in that a circular ring-shaped electromagnet (50) is arranged outside the kettle body (10), a plurality of lifting devices (60) are arranged below the electromagnet (50), and the lifting ends of the lifting devices (60) are fixedly connected with the lower end of the electromagnet (50);

the kettle body (10), the stirring shaft (21), the stirring blades (22) and the shaft sleeve (31) are all made of non-ferromagnetic materials.

2. A high efficiency mixer apparatus as defined in claim 1 wherein: the lifting device (60) is a hydraulic cylinder which does linear reciprocating motion or a pneumatic cylinder which does linear reciprocating motion.

3. A high efficiency mixer apparatus as defined in claim 1 wherein: an iron ring (70) is fixedly arranged on an inner ring of the electromagnet (50), at least three dovetail grooves (71) are formed in the inner ring of the iron ring (70), the dovetail grooves (71) are symmetrically arranged on the inner side of the iron ring (70) along the axial direction of the iron ring (70), the upper ends of the dovetail grooves (71) extend to the upper end face of the iron ring (70), and the lower ends of the dovetail grooves (71) extend to the lower end face of the iron ring (70); the outer side of the kettle body (10) is fixedly provided with a vertical rail (15) matched with the dovetail groove (71), and the cross section of the vertical rail (15) is isosceles trapezoid.

4. A high efficiency mixer apparatus as defined in claim 1 wherein: the upper end of the kettle body (10) is provided with a kettle cover (11), the kettle cover (11) is fixedly connected with the upper end of the kettle body (10), and the kettle cover (11) is provided with a feeding hole (111).

5. A high efficiency mixer apparatus as defined in claim 4 wherein: a driving motor (40) and a reduction gearbox (41) are fixedly arranged above the kettle cover (11), and the driving motor (40) drives the stirring shaft (21) to rotate through the reduction gearbox (41).

6. A high efficiency mixer apparatus as defined in claim 1 wherein: the bottom center of the kettle body (10) is provided with a discharge pipe (12) communicated with the inner cavity of the kettle body (10), and the lower part of the discharge pipe (12) is provided with a discharge valve (121).

7. A high efficiency mixer apparatus as defined in claim 1 wherein: the bottom of the kettle body (10) is also provided with a plurality of supporting legs (13).