CN203030213U

CN203030213U - Pulse-type airflow mixing mechanical stirring shaft

Info

Publication number: CN203030213U
Application number: CN201220387781.0U
Authority: CN
Inventors: 邱小民
Original assignee: ROSIN CHEMICAL (WUPING XINZHOU) CO Ltd
Current assignee: ROSIN CHEMICAL (WUPING XINZHOU) CO Ltd
Priority date: 2012-08-01
Filing date: 2012-08-01
Publication date: 2013-07-03
Anticipated expiration: 2022-08-01

Abstract

The utility model relates to a pulse-type airflow mixing mechanical stirring shaft which is used for high-strength stirring of granulated solid and liquid and provides a stirring mode that the solid and the liquid can be mixed sufficiently and small solid particles cannot be refined continuously under the high-strength stirring. The stirrer is characterized in that a pulse airflow chamber is adopted and connected with an air intake duct and a hollow rotating shaft, and the air inflow is subjected to pulse-type adjustment automatically by stirring speed and differential pressure. The hollow rotating shaft and a lower blade are hollow, and a series of small holes are formed at the bottom of the lower blade. The deposited solid particles can be dispersed uniformly and mixed with the above liquid sufficiently by the mixed stirring of the paddles and an airflow, and the stirring effect is improved. The mixed liquid does not easily generate a vortex under the stirring, can be uniformly distributed and cannot allow the solid particles to be refined, so that the recovery rate and reusability of the solid particles (such as a solid catalyst) are increased and improved.

Description

Pulsed gas flow mixing machinery shaft

Technical field

The utility model belongs to the shaft field, relates to the stirring that a kind of solid mixes with liquid, has especially not only needed repeatedly to recycle but also needs high strength to stir but granule strength is low, the stirring that mixes of the solid of easy refinement and liquid at a kind of.

Background technology

At present, mostly adopt traditional agitator in solid-liquid mix to be produced, the agitation energy that such stirring produces is inhomogeneous, and the solid-liquid contact not exclusively, so need rev up or prolong mixing time.In the central shaft position, owing to select linear velocity lower, the capacitation of mixed liquor institute is lower, just causes the heavy poly-of solid particle easily; Through after revving up or prolonging mixing time; one is the waste that causes on the energy; also has the product that shreds solid particle or reaction easily; not only cause productive rate, the conversion ratio of reaction to descend, also can have a strong impact on the recycling of solid particle (as catalyst) and the chemical property that reuses.Though also there are some paddles to adopt hollow structure, the blade bottom is still precipitated easily, and solid-liquid contact in mixed liquor top is also incomplete, and whole structure is all undesirable; Also have some only only to adopt gas to stir, this can cause single exit to stir and severely then be easy to generate the dead angle from the place of escape pipe away from, and the top of mixed liquor and bottom are difficult for evenly mixing.These all seriously cause the decline of production capacity and the waste of resource.

Summary of the invention

The novel purpose of this experiment is to provide a kind of mode of pulsed gas flow mixing machinery stirring, reclaim the problem of difficulty in order to the not even solid of stirring that solves the prior art existence, and be to improve productive rate, conversion ratio, saving energy consumption, the resources effective method of optimizing.

To achieve these goals, the utility model is realized by following mode:

The utility model adopts blade stirring up and down and past hollow axle and following blade to feed the mixing agitating mode of air-flow.Configuration air pulse chamber, hollow axle top, the air pulse chamber connects air inlet pipe and hollow axle.Hollow axle and following blade all are the intermediate hollow stream of can ventilating, a series of apertures are set bottom the following blade, and time blade is arc, have strengthened the sphere of action of air-flow.Be stirred under certain rotating speed the immixture by blade and air-flow, the solid particle that is deposited in one can both evenly be scattered and the drum to the top mixed liquor, effect through blade produces axially and power radially again, make solid more abundant with contacting of liquid, reach solid-liquid and mix fully, improve mixing effect.The double action of blowing drum and blade stirring by air-flow, mixed liquor is difficult for forming vortex, can evenly distribute and can not cause the refinement of solid particle, thereby the rate of recovery and the reusable chemical property of solid particle (as solid catalyst) have been improved, improved two and contacted, promoted reaction.

Description of drawings

Fig. 1 is the front view according to the hollow axle (1) that the utility model proposes, last blade (2), following blade (4), blade holder cover (3), air inlet pipe (5), air pulse chamber (6), motor and reductor (7);

Fig. 2 is the stereogram that connects hollow axle according to the following blade that the utility model proposes.

The specific embodiment

Describe concrete structure and the operation principle of the pulsed gas flow mixing machinery shaft that the utility model proposes in detail below in conjunction with accompanying drawing.

As shown in Figure 1, the front view of the utility model pulsed gas flow mixing machinery shaft, motor and reductor (7) are fixed on the bracing frame (8), drive stirring shaft (1) and rotate.The centre of hollow axle (1) is hollow, the top connects the air pulse chamber, the bottom is hemispherical, be provided with air pulse chamber (6) at hollow axle (1) top, air pulse chamber (6) two ends up and down respectively is provided with sealing shroud, air pulse chamber (6) and the ventilation of hollow axle passing hole channel, air pulse chamber (6) utilize speed of agitator and pressure reduction automatically air inflow to be carried out pulsed and regulate.Last blade (2) is straight for blade, the edge is arc, and each a slice about having is connected by blade holder cover (3) with hollow axle (1), and following blade (4) is cylindric for the blade side and overlooks and be arc, be hollow in the middle of the blade cylinder, about each a slice blade, it is S shape that whole blade is down overlooked, and a series of aperture is offered in the bottom, blade communicates with hollow axle, realizes connecting by welding.

[0010] as shown in Figure 1, when mixing liquid, air-flow is squeezed into air inlet pipe by air gun and is entered the air pulse chamber again, squeezes into hollow axle and following blade then, advertises solid particle under the Polycondensation Reactor and Esterification Reactor by blade down through aperture again.When rotating hollow axle and feeding air-flow, air-flow is distributed to each position of Polycondensation Reactor and Esterification Reactor rapidly, and the solid particle on driving at the bottom of the still rapidly disperses, mobile, particularly those are near the particle of difficult mixing because the low institute of the rotational line speed mechanical agitation energy that obtains is lower of hollow axles, cooperate the stirring of blade simultaneously, the bottom solid can realized the solid-liquid mixing and incorporate supernatant liquid substantially than rapid under the slow-speed of revolution.The solid-liquid mixture on upper strata then realizes that by the stirring of last blade the abundant contact of solid-liquid mixes.Such design even stir under the lower situation of rotating speed by the mixing of air-flow and blade, can realize the abundant mixing of solid-liquid.Be to provide cost savings for production, optimized resource, improved production capacity.

Claims

1. pulsed gas flow mixing machinery shaft, it mainly comprises hollow axle, blade, air pulse chamber, air inlet pipe, stirring motor and support up and down, it is characterized in that using air pulse chamber control air inflow, the air pulse chamber connects air inlet pipe and hollow axle, and air-flow is squeezed into the air pulse chamber by air inlet pipe and squeezed into down blade through hollow axle and enter mixed liquor again and cooperate blade stirring up and down.

2. pulsed gas flow mixing machinery shaft according to claim 1, it is characterized in that: the centre of described hollow axle is hollow, and the top connects the air pulse chamber, and the bottom is hemispherical.

3. pulsed gas flow mixing machinery shaft according to claim 1 is characterized in that: the described blade of going up blade is straight, and the edge is arc, and about each a slice, with rotating shaft by axle sleeve locking or directly be welded in the rotating shaft.

4. pulsed gas flow mixing machinery shaft according to claim 1, it is characterized in that: the blade side of described down blade is cylindric and overlooks and be arc, be hollow in the middle of the blade cylinder, about each a slice blade, it is S shape that whole blade is down overlooked, and a series of apertures are offered in the bottom, and blade communicates with hollow axle, realize connecting by welding.

5. pulsed gas flow mixing machinery shaft according to claim 1, it is characterized in that: the two ends up and down of described air pulse chamber respectively are provided with sealing shroud, air pulse chamber and the ventilation of hollow axle passing hole channel utilize speed of agitator and pressure reduction automatically air inflow to be carried out pulsed and regulate.