CN212396519U - Be used for synthetic special agitating unit of acetylacetone - Google Patents

Abstract

The utility model provides a special stirring device for acetylacetone synthesis, which comprises a mixing kettle, wherein a feed pipeline is arranged on the mixing kettle, a battery valve is arranged on the feed pipeline, a limit liquid level sensor is arranged inside the mixing kettle, a controller is arranged on the outer wall of the mixing kettle, a mixing motor is arranged at the bottom outside the reaction kettle, the mixing motor is connected with a stirring shaft in the mixing kettle, the stirring shaft is vertically arranged, stirring blades are connected on the stirring shaft, a discharge pipeline is arranged at the bottom of the mixing kettle, a spiral water-cooling pipe is arranged in the mixing kettle, a water inlet pipeline of the water-cooling pipe is connected with the upper half part of the mixing kettle, a water outlet pipeline is connected with the lower half part of the mixing kettle, the water-cooling pipe is fixed with the connecting part of the mixing kettle, and the spiral part of the water-cooling pipe surrounds the stirring, and a support is arranged at the bottom of the mixing kettle. The whole stirring device flexibly works under the action of the controller.

Description

Be used for synthetic special agitating unit of acetylacetone

Technical Field

The utility model belongs to the technical field of acetylacetone production, refer in particular to a be used for acetylacetone to synthesize special agitating unit.

Background

In the process of preparing acetylacetone, acetic acid with the concentration of 85% to 95% is needed, and in the industrial process of preparing acetylacetone, acetic acid with the concentration of 80% and glacial acetic acid with the concentration of 99% are mostly mixed to prepare acetic acid with the concentration of 85% to 95%, and then the obtained raw materials are carried out to the next industrial process of synthesizing acetylacetone.

The existing special stirring device for synthesizing the acetylacetone directly mixes the raw materials together and stirs the raw materials when mixing 85% acetic acid and 99% glacial acetic acid, because the freezing point of the glacial acetic acid is lower and is 16.7 ℃, the acetic acid is volatile at normal temperature, because the whole stirring device is high in temperature after long-time work of the stirring device, the glacial acetic acid is partially solidified and the acetic acid is partially volatilized, the yield of the mixed 85% -95% acetic acid is lower and the concentration is insufficient, and because the acetic acid is volatile, the stirring device can not stir the raw materials for a long time, so that the pure stacking of the 85% acetic acid and the 99% raw materials together and the stirring can cause insufficient mixing, and the problem of uneven concentration of the obtained 85% -95% acetic acid is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a can improve the acetic acid productivity of target concentration and the abundant one kind of raw materials mixture is used for the synthetic special agitating unit of acetylacetone.

In order to achieve the above purpose, the utility model provides a following technical scheme: a special stirring device for acetylacetone synthesis comprises a mixing kettle, wherein a feed pipeline A and a feed pipeline B are arranged on the mixing kettle, the feed pipeline A and the feed pipeline B penetrate through the top of the mixing kettle, electromagnetic valves are arranged on the feed pipeline A and the feed pipeline B, the feed pipeline is controlled by the electromagnetic valves to improve the overall operability of equipment, the electromagnetic valves are positioned outside the mixing kettle and prevent internal elements of the electromagnetic valves from being damaged by short circuit when encountering water, a limit liquid level sensor is arranged inside the mixing kettle and used for controlling the amount of solution in the mixing kettle, a controller is arranged on the outer wall of the mixing kettle, the controller is a PLC (programmable logic controller), a mixing motor is arranged at the bottom of the outer side of the reaction kettle, the mixing motor is connected with a stirring shaft in the mixing kettle, the stirring shaft is vertically arranged and is connected with stirring blades, mix the cauldron bottom and be provided with ejection of compact pipeline, be provided with spiral helicine water-cooled tube in the mixing cauldron, the inlet channel of water-cooled tube connects the first half of mixing cauldron, outlet channel connects the latter half of mixing cauldron, the water-cooled tube through with the coupling part of mixing cauldron is fixed, the helical portion of water-cooled tube centers on stirring vane, and do not hinder the stirring vane rotation, it is equipped with the support to mix the cauldron bottom.

The utility model discloses further set up to: the parts of the feed pipeline A and the feed pipeline B, which are positioned in the mixing kettle, are provided with spray heads which are arranged oppositely.

The spiral water-cooling pipe is positioned between the oppositely arranged spray heads.

The utility model discloses further set up to: and a water inlet pipeline and a water outlet pipeline of the water-cooling pipe are connected outside the mixing kettle through a water pump.

The utility model discloses further set up to: the hybrid motor, the electromagnetic valve, the limit liquid level sensor and the water pump are all electrically connected with the controller.

Compared with the prior art, the utility model discloses following beneficial effect has:

the mixed raw materials enter the mixing kettle through the spray head, the raw materials sprayed out of the spray head are fine water columns, the contact area between the mixed raw materials is enlarged, and the effect of fully mixing the mixed raw materials can be achieved by matching with the stirring blades, so that the obtained target solution can reach the aim of uniform concentration more easily. At the agitating unit during operation, raw materials solution is from the shower nozzle blowout, because the water-cooled tube sets up between the shower nozzle, the tiny water column contact water-cooled tube of raw materials stirs after cooling for the first time and mixes, the raw materials is when being stirred, because stirring vane is located in the middle of the water-cooled tube, the raw materials solution by the stirring cools off once more, when the coolant liquid outflow mixes the cauldron, the coolant liquid flows into again and mixes the cauldron to the solution cooling under the effect of water pump after giving off the heat to the external world, in this way, it is volatile to have solved acetic acid, the problem that glacial acetic acid solidifies, the productivity of target concentration acetic acid is improved.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

reference numbers in the drawings and corresponding part names: 1-mixing kettle; 2-a feed line a; 3-a feed conduit B; 4-limit liquid level sensor; 5, a controller; 6-hybrid motor; 7-stirring shaft; 8-stirring blades; 9-a discharge pipeline; 10-water cooling pipe; 11-a solenoid valve; 12-a spray head; 13-a water pump; 14-a support.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "disposed," it can be directly on another element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element using some sort of connection or intervening elements may also be present. The terms "ends," "left and right," and the like, as used herein, are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Fig. 1 is a schematic view of a preferred embodiment of the present invention.

The utility model provides a be used for synthetic special agitating unit of acetylacetone, includes mixing kettle 1, be provided with charge-in pipeline A2 and charge-in pipeline B3 on mixing kettle 1, charge-in pipeline A2 and charge-in pipeline B3 run through mixing kettle 1 to mutual symmetry with reation kettle 1's axis, be provided with solenoid valve 11 on charge-in pipeline A2 and the charge-in pipeline B3, charge-in pipeline passes through A2 and charge-in pipeline B3 solenoid valve 11 control, solenoid valve 11 is located outside mixing kettle 1, prevents solenoid valve 11 internal component meets the damage of water short circuit, first half installation limit level sensor 4 of mixing kettle 1 inner wall is used for controlling the solution volume in mixing kettle 1, set up controller 7 on mixing kettle 1 outer wall, controller 7 is the PLC controller, bolted connection hybrid motor 6 is passed through to reation kettle's outside bottom central point, mixing motor 6 in mixing cauldron 1 is connected with (mixing) shaft 7 through the shaft coupling in, the vertical placement of (mixing) shaft 7, welding stirring vane 8 on the (mixing) shaft 7, mixing cauldron 1 bottom is provided with ejection of compact pipeline, set up spiral helicine water-cooled tube 10 in the mixing cauldron 1, the inlet channel of water-cooled tube 10 is connected mixing cauldron's first half, outlet conduit connects mixing cauldron's the latter half, the water-cooled tube pass through 10 with mixing cauldron 1's coupling part is fixed, the helical part of water-cooled tube 10 centers on stirring vane 8, and does not hinder the stirring vane rotation, mixing cauldron 1 bottom is equipped with support 14.

The utility model discloses further set up to: the feeding pipeline A2 and the feeding pipeline B3 are positioned on part of the welding spray heads 12 in the mixing kettle 1, the spray heads 12 on the left side and the right side are oppositely arranged, and the spray heads 12 on the left side and the right side are respectively communicated with the insides of the corresponding feeding pipelines.

The spiral water-cooling pipe 10 is positioned between the left and right oppositely arranged spray heads 12.

The utility model discloses further set up to: and the water inlet pipeline and the water outlet pipeline of the water-cooling pipe 10 are connected outside the mixing kettle through two ends of a water pump 13.

The utility model discloses further set up to: the hybrid motor 6, the electromagnetic valve 11, the limit liquid level sensor 4 and the water pump 13 are all electrically connected with the controller.

When the stirring device works, the controller 5 is used for opening the mixing motor 6, the electromagnetic valve 11, the limit liquid level sensor 4 and the water pump 13, raw materials enter the mixing kettle 1 from the spray heads 12 on the feeding pipeline A2 and the feeding pipeline B3, and the mixing motor 6 rotates to drive the stirring blades 8 to stir and mix the raw materials; when the liquid level of the solution reaches the limit liquid level sensor 4 after working for a period of time, the controller 7 closes the electromagnetic valve 11 to stop the conveying of the raw materials, and when the target solution is taken away and the liquid level in the mixing kettle 1 descends, the controller 7 opens the electromagnetic valve 11 again to convey the raw materials; when the water pump 13 works, the cooling liquid flows through the spiral part of the water-cooling pipe from the water inlet pipeline of the water-cooling pipe, cools the raw material and the stirred solution sprayed from the spray head 12, then reaches the water outlet pipeline, and then flows back to the water pump from the water outlet pipeline, so that a cooling circulation is completed; the whole stirring device flexibly works under the action of the controller 5.

The above examples merely represent a practical way of implementing the present invention, which is described in more detail and in greater detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (5)

1. The utility model provides a be used for synthetic special agitating unit of acetylacetone, includes mixing kettle (1), its characterized in that, be equipped with charge-in pipeline A (2) and charge-in pipeline B (3) on mixing kettle (1), charge-in pipeline A (2) and charge-in pipeline B (3) run through the top of mixing kettle (1), be provided with solenoid valve (11) on charge-in pipeline A (2) and charge-in pipeline B (3), solenoid valve (11) are located outside mixing kettle (1), be provided with limit level sensor (4) on mixing kettle (1) inner wall, be provided with controller (5) on mixing kettle (1) outer wall, mixing kettle (1) bottom is provided with hybrid motor (6), hybrid motor (6) are in mixing kettle (1) outside, hybrid motor (6) are connected with (mixing) shaft (7), (mixing) shaft (7) vertical set up in mixing cauldron (1), be provided with stirring vane (8) on (mixing) shaft (7), mixing cauldron (1) bottom is provided with ejection of compact pipeline (9), be provided with water-cooled tube (10) in mixing cauldron (1), water-cooled tube (10) are the heliciform, the water inlet of water-cooled tube (10) is located mixing cauldron (1) the first half, the delivery port is located the latter half of mixing cauldron (1), water-cooled tube (10) center on stirring vane (8), mixing cauldron (1) bottom is equipped with support (14).

2. The special stirring device for acetylacetone synthesis according to claim 1, which is characterized in that: the parts of the feed pipeline A (2) and the feed pipeline B (3) which are positioned in the mixing kettle (1) are provided with spray heads (12), and the spray heads (12) are arranged on two sides oppositely.

3. The special stirring device for acetylacetone synthesis according to claim 1 or 2, wherein: the spiral part of the water cooling pipe (10) is positioned between the spray heads (12) on the two sides.

4. The special stirring device for acetylacetone synthesis according to claim 1, which is characterized in that: and a water inlet pipeline of the water cooling pipe (10) is connected with a water outlet pipeline through a water pump (13) positioned outside the mixing kettle.

5. The special stirring device for acetylacetone synthesis according to claim 1, which is characterized in that: the hybrid motor (6), the limit liquid level sensor (4), the electromagnetic valve (11) and the water pump (13) are all electrically connected with the controller (5).

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