CN204320299U - Grease pressure still - Google Patents

Abstract

The utility model belongs to the technical field of chemical equipment, in particular to a lubricating grease pressure kettle used in the lubricating grease industry, which includes a kettle body and a jacket, and is characterized in that a triple stirring structure is arranged in the kettle body; A two-way stirring device and a lower wing stirring device placed at the bottom of the kettle body; the two-way stirring device includes a first-stage reducer and a two-way reducer, the two-way reducer connects the inner stirring shaft and the outer stirring frame through the inner and outer shafts, and the inner stirring shaft and the outer stirring frame The stirring frame is provided with an inner blade and an outer blade respectively; the lower wing stirring device includes a lower wing motor and a turbine type stirring impeller. The lubricating grease pressure kettle of the utility model has a reasonable structure, and adopts triple stirring, so that the materials are mixed more fully, the product quality is improved, the cost is reduced, and the production efficiency is improved.

Description

Grease Autoclave

technical field

The invention belongs to the technical field of chemical equipment, in particular to a pressure kettle used in the lubricating grease industry.

Background technique

The pressure kettle is an important equipment in the production of lubricating grease, and the mixed medium undergoes saponification reaction under the pressure inside the kettle. Two-way stirring in the autoclave, the direction of the inner and outer stirring is opposite, the outer paddle rotates counterclockwise to make the material turn upwards, and the inner paddle rotates clockwise to make the material discharge downward. The bottom of the kettle is equipped with lower wing stirring, and the turbine impeller is used for stirring to increase the dispersion speed of the material. The inside of the kettle and the lower wing form a triple stirring, which is beneficial to improve the mixing effect in the kettle.

The traditional autoclave adopts a simple one-way stirring device, or double agitation of the paddle frame and the lower wing. In order to improve the stirring effect, a higher speed is required, so that the seal is easy to wear, and the pressure seal in the autoclave is prone to leakage. In addition, the stirring frame of the traditional pressure kettle shakes greatly during operation, which leads to poor scraper effect on the stirring frame, which affects the temperature in the kettle, the consistency of the material in the kettle, and then affects the quality of the grease product.

Contents of the invention

The object of the present invention is to provide a grease pressure kettle which can not only meet the technological requirements in grease production, but also reduce equipment manufacturing costs.

The present invention is realized through the following technical solutions: a grease pressure kettle, including a kettle body and a jacket, characterized in that a triple stirring structure is arranged in the kettle body; the triple stirring structure includes a two-way stirring device placed on the top of the kettle body and a The lower wing stirring device at the bottom; the two-way stirring device includes a first-stage reducer and a two-way reducer, and the two-way reducer connects the inner stirring shaft and the outer stirring frame through the inner and outer shafts, and the inner stirring shaft and the outer stirring frame are respectively provided with inner paddles Blades and outer paddles; the lower wing stirring device includes a lower wing motor and a turbine stirring impeller.

Generally, the first-stage reducer includes an outer-wing first-stage reducer and an inner-wing first-stage reducer. The two-way reducer realizes two horizontal inputs, two vertically downward coaxial outputs through the first-stage reducer, reverses the steering, and reduces the speed in the kettle to about 30r/min. The lower wing stirring is installed at the bottom of the kettle, and the turbine stirring impeller is used to increase the dispersion speed of the material. The lower wing impeller rotates counterclockwise, and the lower wing speed is 980r/min. The inside of the kettle and the lower wing form a triple stirring, which is beneficial to improve the mixing in the kettle. Effect.

The inner stirring shaft and the outer stirring frame are supported by sliding bearings to make the stirring more stable.

Both the inner paddle and the outer paddle are installed with an inclination of 45°, and the direction of inclination is the same but the direction of rotation is opposite. The interaction between the two paddles makes the material in a disordered state, fully collides and mixes evenly to speed up the reaction speed and promote the flow of grease.

The outer stirring frame is close to the inner wall of the kettle, and scrapers are arranged staggeredly on the outer stirring frame to ensure 100% scraping along the kettle wall. Through good wall scraping, the oil film and the tank wall will be replaced by a new oil film after a short time of contact, so that the temperature difference between the tank wall and the oil film can be maintained. After the cold (hot) grease enters the hot (cold) grease, it passes The exchange achieves heat balance, thereby improving the heat transfer effect. In addition, scraping the wall can eliminate the local overheating of the material on the wall of the kettle, so that the material can be mixed well, which is beneficial to improve the product quality.

The inner and outer shafts of the two-way reducer are sleeve shafts, and packing seals are used at the inner and outer shafts. Usually the pressure inside the kettle is 0.6MPa, and the rotation speed of the stirring shaft at the lid of the kettle is about 30r/min, so the packing seal type is adopted.

The lower wing stirring device adopts a mechanical seal. Usually the speed of the lower wing is 980r/min, and the speed is relatively high, so a mechanical seal is used.

The inner shaft of the two-way reducer is connected to the inner stirring shaft through a shell coupling.

Jackets are provided outside the cylinder of the grease autoclave.

The autoclave of the present invention generally also includes a lower head, a jacket lower head, ear supports, inlet and outlet pipe parts, kettle body flanges, kettle body flange covers, etc., which are well known in the art.

The lubricating grease pressure kettle of the present invention has a reasonable structure, adopts triple agitation, and the materials are more fully mixed, thereby improving product quality, reducing costs, and increasing production efficiency.

Description of drawings

Fig. 1 is a schematic structural view of a grease autoclave according to an embodiment of the present invention.

In the figure, 1-two-way reducer, 2-outer wing primary reducer, 3-reducer base, 4-sealing system I, 5-sealing system II, 6-support, 7-inner blade, 8-kettle Body, 9-scraper, 10-lower wing bracket, 11-lower wing motor, 12-inner wing primary reducer, 13-quick opening manhole, 14-outer stirring frame, 15-clamp coupling, 16 -stirring impeller, 17-mechanical seal.

Detailed ways

The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings.

Embodiment: The structure of the lubricating grease pressure kettle in this embodiment is shown in Figure 1, which mainly includes a kettle body 8 and a jacket. Its main feature is that a triple stirring structure is arranged in the kettle body 8; the triple stirring structure includes a The two-way stirring device at the top of 8 and the lower wing stirring device placed at the bottom of the kettle body 8, the reducer is installed on the top of the kettle body 8 through the reducer base 4, and the lower wing stirring device is installed at the bottom of the kettle body 8 through the lower wing bracket 10; The two-way stirring device includes a first-stage reducer and a two-way reducer 1, the two-way reducer 1 is connected to the inner stirring shaft and the outer stirring frame 14 through the inner and outer shafts, the inner shaft of the two-way reducer is connected to the inner stirring shaft through the shell coupling 15, and the inner The stirring shaft and the outer stirring frame 14 are respectively provided with an inner blade 7 and an outer blade; the lower wing stirring device includes a lower wing motor 11 and a turbine stirring impeller 16 .

In the embodiment, the first-stage reducer includes the outer wing first-stage reducer 2 and the inner wing first-stage reducer 12, and a cycloidal reducer is used to obtain a larger reduction ratio, and its output speed is 50r/min, and the first-stage reducer Provide power for inner and outer wing agitation. The lower wing motor 11 is directly connected with the lower wing turbine type stirring impeller 16 to provide a power speed of 980r/min.

In the embodiment, in order to fully mix the materials, the grease autoclave adopts a two-way reducer 1, which realizes two horizontal inputs, two vertically downward coaxial outputs, and opposite directions to achieve a two-way stirring effect through a one-stage reducer. Reduce the rotation speed in the kettle to about 30r/min.

In the embodiment, the triple stirring device in the kettle is an important part of the grease pressure kettle, and its setting directly affects the mixing and heat transfer effect of the kettle. In order to promote the flow of grease, the outer blades on the inner blade 7 and the outer stirring frame 14 are installed at an angle of 45°, and the direction of inclination is the same but the direction of rotation is opposite. The outer mixing frame 14 rotates counterclockwise from a top view to make the material repeatedly turn upwards, and the inner paddle 7 rotates clockwise to discharge the material downward. The interaction of the two paddles makes the material in a disordered state and fully collides and mixes evenly to speed up the reaction speed. The lower wing stirring device adopts a turbine-type stirring impeller 16. Through the high-speed rotation of the impeller, the material is sheared and thrown to the wall of the kettle, and goes upward along the wall of the kettle, and then returns to the stirring impeller 16 of the lower wing along the stirring shaft. A strong "pumping" cycle is formed inside. Under the action of strong mixing and shearing, the effective collision between molecules increases, so that the materials can be completely reacted in a short time, which is beneficial to improve production efficiency.

In the embodiment, the inner and outer shafts of the two-way reducer 1 are sleeve shafts, and packing seals are used at the inner and outer shafts, that is, sealing system I4 and sealing system II5, effectively ensuring no leakage at low speeds. The mechanical seal 17 is used for the sealing of the stirring device of the lower wing. Due to the fast speed of the lower wing and the pressure of 0.6 MPa in the kettle, the common sealing structure is easy to wear and the sealing effect is not good, so the mechanical seal is selected.

In the embodiment, on the outer stirring frame 14 close to the inner wall of the kettle body 8, scrapers 9 are arranged alternately along its length direction and the curved part of the bottom of the kettle to ensure 100% scraping along the kettle wall. Through good wall scraping, the oil film and the tank wall will be replaced by a new oil film after a short time of contact, so that the temperature difference between the tank wall and the oil film can be maintained. After the cold (hot) grease enters the hot (cold) grease, it passes The exchange achieves heat balance, thereby improving the heat transfer effect. In addition, scraping the wall can eliminate the local overheating of the material on the wall of the kettle, so that the material can be mixed well, which is beneficial to improve the product quality.

In the embodiment, in order to ensure the stable rotation of the outer stirring frame 14 and the inner paddle 7, a sliding bearing is arranged between the inner stirring shaft and the outer stirring frame to make the stirring device rotate smoothly, improve the scraping effect of the scraper 9, and ensure the use of the stirring system. life.

The autoclave of the embodiment also includes the lower head, jacket lower head, ear support 6, quick opening manhole 13, inlet and outlet pipe parts, kettle body flange, kettle body flange cover, etc. .

Claims (8)

1. Grease pressure kettle, including kettle body and jacket, characterized in that the kettle body is equipped with a triple stirring structure; the triple stirring structure includes a two-way stirring device placed on the top of the kettle body and a lower wing stirring device placed at the bottom of the kettle body The two-way stirring device includes a first-stage reducer and a two-way reducer, the two-way reducer connects the inner stirring shaft and the outer stirring frame through the inner and outer shafts, and the inner stirring shaft and the outer stirring frame are respectively provided with inner paddles and outer paddles; The lower-wing stirring device includes a lower-wing motor and a turbine-type stirring impeller. 2. The grease autoclave according to claim 1, characterized in that the first-stage reducer comprises an outer-wing first-stage reducer and an inner-wing first-stage reducer. 3. The grease autoclave according to claim 1, characterized in that the inner stirring shaft and the outer stirring frame are auxiliary supported by sliding bearings. 4. The grease autoclave according to claim 1, characterized in that the inner paddle and the outer paddle are installed at an inclination of 45°, and the inclination direction is the same but the direction of rotation is opposite. 5. The grease pressure kettle as claimed in claim 1, characterized in that the outer stirring frame is close to the inner wall of the kettle, and scrapers are staggeredly arranged on the outer stirring frame. 6. The grease autoclave according to claim 1, characterized in that the inner and outer shafts of the two-way reducer are sleeve shafts, and packing seals are used at the inner and outer shafts. 7. The grease autoclave according to claim 1, characterized in that said lower wing stirring device adopts a mechanical seal. 8. The grease autoclave according to claim 1 or 6, characterized in that the inner shaft of the two-way reducer is connected to the inner stirring shaft through a clamshell coupling.