Mica paper pulp mixing device

Abstract

The utility model provides a mica paper pulp mixing device, and belongs to the technical field of mica product production equipment. Comprising a reaction kettle, a stirring shaft, an impeller and an outer sleeve, the outer sleeve comprises a pipe body and a gas collecting hood located below the pipe body, a plurality of through holes are formed in the gas collecting hood, the stirring shaft is inserted into the pipe body, the impeller is rotationally connected to the bottom of the reaction kettle in the gas collecting hood, and a ventilation connecting pipe is arranged at the bottom of the reaction kettle and connected with a steam source. An outlet of the ventilation connecting pipe is positioned below the gas-collecting hood; a gap is formed between the stirring shaft and the pipe body. The device has the advantages of low energy consumption and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mica product production equipment technical field relates to a kind of mica paper pulp mixing device. BACKGROUND

[0002] The preparation process of mica paper includes: crushing, grading, pulping, making and forming, squeezing, drying, winding. Among them, the pulping usually adopts acid pulping process, that is, mica clinker is immersed in 2-5% dilute acid (sulfate hydrochloric acid or phosphoric acid) for heating treatment into pulp, and then washed, graded and dehydrated. Due to the need for continuous input of high-temperature steam, the existing method is generally to send steam from the bottom of the reaction kettle and discharge it from the top after heating. This way has low heat utilization rate and high energy consumption. SUMMARY

[0003] The utility model aims at the above-mentioned problems existing in the prior art, and provides a kind of mica paper pulp mixing device, and the technical problems to be solved by the utility model are to reduce energy consumption.

[0004] The utility model can be realized by the following technical scheme: a kind of mica paper pulp mixing device, characterized by comprising reaction kettle, stirring shaft, impeller and outer sleeve, the outer sleeve includes tube body and the gas collector located below the tube body, a plurality of through holes are formed in the gas collector, the stirring shaft is inserted in the tube body, the impeller is rotatably connected to the bottom of the reaction kettle in the gas collector, the bottom of the reaction kettle is provided with a vent pipe, the vent pipe is connected to a steam source, the outlet of the vent pipe is located below the gas collector, and the stirring shaft has a gap with the tube body.

[0005] Further, the outer wall of the stirring shaft and the inner wall of the tube body have extrusion protrusions.

[0006] Further, a stirring paddle is fixedly arranged on the stirring shaft outside the tube body.

[0007] Mica clinker and dilute acid are poured into the reaction kettle, and the motor is started to rotate the stirring shaft. In this scheme, the inlet of the steam is arranged below the gas collector. After the steam enters the gas collector, it is discharged upward through the gap between the stirring shaft and the tube body. The impeller rotates to stir the material on one hand and guide the material in the gas collector upward on the other hand, so that the material passes through the relatively narrow gap between the tube body and the stirring shaft. In this gap, the extrusion protrusions can extrude, disperse and rub open the particles of the mica clinker, improve the stirring intensity and effectively disperse the mica clumps. Since the steam overflows slowly, the energy consumption can be reduced, and the stirring intensity is also high, which is beneficial to the expansion of mica sheet and the degranulation of crystallization water, and the quality of mica paper pulp is good. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is a structural schematic view of the mica paper pulp mixing device.

[0009] In the figure, 1, reaction kettle; 2, stirring shaft; 3, impeller; 4, pipe body; 5, gas collecting cover; 6, through hole; 7, air inlet pipe; 8, extrusion protrusion; 9, stirring paddle. DETAILED DESCRIPTION

[0010] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in conjunction with the drawings, but the utility model is not limited to these embodiments.

[0011] As Figure 1 The mica pulp mixing device shown in the figure includes a reaction kettle 1, a stirring shaft 2, an impeller 3 and an outer sleeve, the outer sleeve includes a pipe body 4 and a gas collecting cover 5 located below the pipe body 4, a plurality of through holes 6 are formed in the gas collecting cover 5, the stirring shaft 2 is inserted into the pipe body 4, the impeller 3 is rotationally connected to the bottom of the reaction kettle 1 in the gas collecting cover 5, the bottom of the reaction kettle 1 is provided with an air inlet pipe 7, the air inlet pipe 7 is connected to a steam source, the outlet of the air inlet pipe 7 is located below the gas collecting cover 5, there is a gap between the stirring shaft 2 and the pipe body 4, the outer wall of the stirring shaft 2 and the inner wall of the pipe body 4 are both provided with extrusion protrusions 8, and the stirring shaft 2 is fixedly provided with a stirring paddle 9 located outside the pipe body 4.

[0012] The mica clinker and dilute acid are poured into the reaction kettle 1, the motor is started, and the stirring shaft 2 is rotated, the inlet of the steam in the present scheme is arranged below the gas collecting cover 5, the steam enters the gas collecting cover 5 and is discharged upward through the gap between the stirring shaft 2 and the pipe body 4, the impeller 3 rotates to stir the material and guide the material in the gas collecting cover 5 upward, so that the material passes through the relatively narrow gap between the pipe body 4 and the stirring shaft 2, the extrusion protrusions 8 can extrude, disperse and rub open the particles of the mica clinker in the gap, the stirring intensity is improved, and the mica clumps are effectively dispersed. Since the steam overflow is slow, the energy consumption can be reduced, the stirring intensity is also high, which is beneficial to the expansion of the mica sheet and the degranulation of the crystal water, and the quality of the mica pulp is good.

[0013] The specific embodiments described in the present document are only illustrative of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A mica pulp mixing device, characterized by, The utility model relates to a reaction kettle, stirring shaft, impeller and outer sleeve, the outer sleeve includes the pipe body (4) and the gas collecting hood (5) below the pipe body (4), a plurality of through -hole (6) are seted up on the gas collecting hood (5), the stirring shaft (2) is inserted in the pipe body (4), the impeller (3) rotation is connected in the bottom of reaction kettle (1) in gas collecting hood (5), the bottom of reaction kettle (1) is provided with vent pipe (7), the vent pipe (7) is connected steam source, the outlet of vent pipe (7) is located below gas collecting hood (5), and the stirring shaft (2) has the gap with the pipe body (4).

2. A mica pulp mixing device as claimed in claim 1, wherein, The outer wall of stirring shaft (2) and the inner wall of pipe body (4) all have extrusion protrusion (8).

3. A mica pulp mixing device as claimed in claim 2, wherein, The stirring shaft (2) is fixed with the stirring paddle (9) outside the pipe body (4).

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